GP88s Portable Radio. Service Manual J47-D

Transcription

1 GP88s Portable Radio Service Manual 80J7-D November, 00

2 Computer Software Copyrights The Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconductor memories or other media. Laws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or reproduce in any form, the copyrighted computer program. Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied or reproduced in any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola products shall not be deemed to grant, either directly or by implication, estoppel or otherwise, any license under the copyrights, patents or patent applications of Motorola, except for the normal non-exclusive royalty-free license to use that arises by operation of law in the sale of a product.

3 Document History Document History iii The following major changes have been implemented in this manual since the previous edition: Edition Description Date 80J7-D Updated the mechanical parts list and exploded view. Nov. 00

4 iv Document History THIS PAGE INTENTIONALLY LEFT BLANK

5 Safety Information v SAFETY INFORMATION Product Safety and RF Exposure for Portable Two-Way Radios BEFORE USING THIS RADIO, READ THIS BOOKLET WHICH CONTAINS IMPORTANT OPERAT- ING INSTRUCTIONS FOR SAFE USAGE AND RF ENERGY AWARENESS AND CONTROL INFOR- MATION FOR COMPLIANCE WITH RF ENERGY EXPOSURE LIMITS IN APPLICABLE NATIONAL AND INTERNATIONAL STANDARDS. The information provided in this document supersedes the general safety information contained in user guides published prior to February 00. For radios that have been approved as intrinsically safe, read the instructions and information on intrinsic safety. Compliance with RF Energy Exposure Standards NOTICE: This radio is intended for use in occupational/controlled applications where users have been made aware of the potential for exposure and can exercise control over their exposure. This radio device is NOT authorized for general population, consumer or similar use. Federal Communication Commission(FCC) Regulations The FCC has established limits for safe exposure to radio frequency (RF) emissions from portable two-way radios. The FCC requires manufacturers to demonstrate compliance with RF exposure limits before portable twoway radios can be marketed in the U.S. When two-way radios are approved for occupational/controlled environment exposure limits, the FCC requires users to be fully aware of, and exercise control over, their exposure. Awareness and control of RF exposure can be accomplished by the use of labels, or by education or training through appropriate means, such as information and instructions in user manuals or safety booklets. Your Motorola two-way radio has an RF exposure information label in the battery compartment. This user safety booklet includes useful information about RF exposure and helpful instructions on how to control your RF exposure. Your Motorola two-way radio is designed and tested to comply with a number of national and international standards and guidelines (listed below) regarding human exposure to radio frequency electromagnetic energy. This radio complies with the IEEE (FCC) and ICNIRP exposure limits for occupational/controlled RF exposure environments at usage factors of up to 50% talk 50% listen. In terms of measuring RF energy for compliance with FCC exposure guidelines, your radio radiates measurable RF energy only while it is transmitting (during talking), not when it is receiving (listening) or in standby mode. NOTE:The approved batteries, supplied with the portable radio, are rated for a duty cycle (5% talk 5% listen 90% standby), even though this radio complies with FCC occupational exposure limits at usage factors of up to 50% talk. Your Motorola two-way radio complies with the following RF energy exposure standards and guidelines: United States Federal Communications Commission, Code of Federal Regulations; 7 CFR part sub-part J American National Standards Institute (ANSI) / Institute of Electrical and Electronic Engineers (IEEE) C Institute of Electrical and Electronic Engineers (IEEE) C Edition International Commission on Non-Ionizing Radiation Protection (ICNIRP) 998

6 vi Safety Information Ministry of Health (Canada) Safety Code. Limits of Human Exposure to Radiofrequency Electromagnetic Fields in the Frequency Range from khz to 00 GHz, 999 Australian Communications Authority Radiocommunications (Electromagnetic Radiation - Human Exposure) Standard, 00 ANATEL, Brasil Regulatory Authority, Resolution 5 (April, 00) additional requirements for SMR, cellular and PCS product certification. Compliance and Control Guidelines and Operating Instructions for Portable Two-Way Radios To control your exposure and ensure compliance with the occupational/ controlled environment exposure limits, always adhere to the following procedures: Transmit no more than 50% of the time. To transmit (talk), push the Push-To-Talk (PTT) button. To receive calls, release the PTT button. Transmitting 50% of the time or less is important since the radio generates measurable RF energy exposure only when transmitting (in terms of measuring standards compliance). Hold the radio in a vertical position in front of the face with the microphone (and other parts of the radio including the antenna) at least one to two inches (.5 to 5 centimeters) away from the lips. Keeping the radio at a proper distance is important since RF exposures decrease with distance from the antenna. For body-worn operation, always place the radio in a Motorola-approved clip, holder, holster, case, or body harness for this product. Using non Motorola-approved accessories may result in exposure levels which exceed the FCC s occupational/controlled environment RF exposure limits. If you are not using a body-worn accessory and are not using the radio in the intended use position in front of the face, ensure the antenna and the radio are kept one inch (.5 centimeters) from the body when transmitting. Keeping the radio at a proper distance is important since RF exposures decrease with distance from the antenna. Use only Motorola-approved supplied or replacement antennas, batteries, and accessories. Use of non Motorola-approved antennas, batteries and accessories may exceed FCC RF exposure guidelines. For a list of Motorola-approved antennas,batteries, and other accessories, visit the following web site which lists approved accessories: For additional information on exposure requirements or other training information, visit Electromagnetic Interference/Compatibility Facilities Aircraft NOTE:Nearly every electronic device is susceptible to electromagnetic interference (EMI) if inadequately shielded, designed, or otherwise configured for electromagnetic compatibility. To avoid electromagnetic interference and/or compatibility conflicts, turn off your radio in any facility where posted notices instruct you to do so. Hospitals or health care facilities may be using equipment that is sensitive to external RF energy. When instructed to do so, turn off your radio when on board an aircraft. Any use of a radio must be in accordance with applicable regulations per airline crew instructions.

7 Safety Information vii Medical Devices Pacemakers The Advanced Medical Technology Association (AdvaMed) recommends that a minimum separation of inches (5 centimeters) be maintained between a handheld wireless radio and a pacemaker. These recommendations are consistent with those of the U.S. Food and Drug Administration. Hearing Aids Persons with pacemakers should: ALWAYS keep the radio more than inches (5 centimeters) from their pacemaker when the radio is turned ON. not carry the radio in the breast pocket. use the ear opposite the pacemaker to minimize the potential for interference. turn the radio OFF immediately if you have any reason to suspect that interference is taking place. Some digital wireless radios may interfere with some hearing aids. In the event of such interference, you may want to consult your hearing aid manufacturer to discuss alternatives. Other Medical Devices If you use any other personal medical device, consult the manufacturer of your device to determine if it is adequately shielded from RF energy. Your physician may be able to assist you in obtaining this information. Driver Safety Check the laws and regulations on the use of radios in the area where you drive. Always obey them. When using your radio while driving, please: Give full attention to driving and to the road. Use hands-free operation, if available. Pull off the road and park before making or answering a call if driving conditions so require.

8 viii Safety Information Operational Warnings Operational Cautions For Vehicles With An Air Bag Do not place a portable radio in the area over an air bag or in the air bag deployment area. Air bags inflate with great force. If a portable radio is placed in the air bag deployment area and the air bag inflates, the radio may be propelled with great force and cause serious injury to occupants of the vehicle. Potentially Explosive Atmospheres Turn off your radio prior to entering any area with a potentially explosive atmosphere, unless it is a portable radio type especially qualified for use in such areas as Intrinsically Safe (for example, Factory Mutual, CSA, UL, or CENELEC). Do not remove, install, or charge batteries in such areas. Sparks in a potentially explosive atmosphere can cause an explosion or fire resulting in bodily injury or even death. The areas with potentially explosive atmospheres referred to above include fueling areas such as below decks on boats, fuel or chemical transfer or storage facilities, and areas where the air contains chemicals or particles such as grain, dust or metal powders. Areas with potentially explosive atmospheres are often, but not always, posted. Blasting Caps And Blasting Areas To avoid possible interference with blasting operations, turn off your radio when you are near electrical blasting caps, in a blasting area, or in areas posted: Turn off two-way radio. Obey all signs and instructions. Antennas Do not use any portable radio that has a damaged antenna. If a damaged antenna comes into contact with your skin, a minor burn can result. Batteries All batteries can cause property damage and/or bodily injury such as burns if a conductive material such as jewelry, keys, or beaded chains touch exposed terminals. The conductive material may complete an electrical circuit (short circuit) and become quite hot. Exercise care in handling any charged battery, particularly when placing it inside a pocket, purse, or other container with metal objects. Intrinsically Safe Radio Information FMRC Approved Equipment Anyone intending to use a radio in a location where hazardous concentrations of flammable materials exist (hazardous atmosphere) is advised to become familiar with the subject of intrinsic safety and with the National Electric Code NFPA 70 (National Fire Protection Association) Article 500 (hazardous [classified] locations). An Approval Guide, issued by Factory Mutual Research Corporation (FMRC), lists manufacturers and the products approved by FMRC for use in such locations. FMRC has also issued a voluntary approval standard for repair service ( Class Number 05 ). FMRC Approval labels are attached to the radio to identify the unit as being FMRC Approved for specified hazardous atmospheres. This label specifies the hazardous Class/Division/Group along FM with the part number of the battery that must be used. Depending on the design of the portable unit, this FM label can be found on the back or the bottom of the radio housing. The FM Approval APPROVED Mark is shown here.

9 Safety Information ix Do not operate radio communications equipment in a hazardous atmosphere unless it is a type especially qualified (for example, FM Approved) for such use. An explosion or fire may result. Do not operate an FMRC Approved product in a hazardous atmosphere if it has been physically damaged (for example, cracked housing). An explosion or fire may result. Do not replace or charge batteries in a hazardous atmosphere. Contact sparking may occur while installing or removing batteries and cause an explosion or fire. Do not replace or change accessories in a hazardous atmosphere. Contact sparking may occur while installing or removing accessories and cause an explosion or fire. Turn the radio off before removing or installing a battery or accessory. Do not disassemble an FMRC Approved Product in any way that exposes the internal circuits of the unit. Radios must ship from the Motorola manufacturing facility with the hazardous atmosphere capability and FM Approval labeling. Radios will not be upgraded to this capability and labeled in the field. A modification changes the unit s hardware from its original design configuration. Modifications can only be made by the original product manufacturer at one of its FMRC-audited manufacturing facilities. Failure to use an FMRC Approved Product with an FMRC Approved battery or FMRC Approved accessories specifically approved for that product may result in the dangerously unsafe condition of an unapproved radio combination being used in a hazardous location. Unauthorized or incorrect modification of an FMRC Approved Product will negate the Approval rating of the product. Repair of FMRC Approved Products REPAIRS FOR MOTOROLA PRODUCTS WITH FMRC APPROVAL ARE THE RESPONSIBILITY OF THE USER. You should not repair or relabel any Motorola-manufactured communication equipment bearing the FMRC Approval label ( FMRC Approved Product ) unless you are familiar with the current FMRC Approval standard for repairs and service ( Class Number 05 ). You may want to consider using a repair facility that operates under 05 repair service approval. Incorrect repair or relabeling of any FMRC Approved Product could adversely affect the Approval rating of the unit. Use of a radio that is not intrinsically safe in a hazardous atmosphere could result in serious injury or death.

10 x Safety Information Repair Relabeling The FMRC s Approval Standard Class Number 05 is subject to change at any time without notice to you. You may want to obtain a current copy of 05 from the FMRC. Per the December 99 publication of 05, some key definitions and service requirements are as follows: A repair constitutes something done internally to the unit that would bring it back to its original condition Approved by FMRC. A repair should be done in an FMRC Approved repair facility. Items not considered as repairs are those in which an action is performed on a unit which does not require the outer casing of the unit to be opened in a manner that exposes the internal electrical circuits of the unit. You do not have to be an FMRC Approved repair facility to perform these actions. The repair facility shall have a method by which the replacement of FMRC Approval labels are controlled to ensure that any relabeling is limited to units that were originally shipped from the manufacturer with an FM Approval label in place. FMRC Approval labels shall not be stocked by the repair facility. An FMRC Approval label shall be ordered from the original manufacturer, as needed, to repair a specific unit. Replacement labels may be obtained and applied by the repair facility, provided there is satisfactory evidence that the unit being relabeled was originally an FMRC Approved unit. Verification may include, but is not limited to a unit with a damaged Approval label, a unit with a defective housing displaying an Approval label, or a customer invoice indicating the serial number of the unit and purchase of an FMRC Approved model. Do Not Substitute Options or Accessories The Motorola communications equipment certified by Factory Mutual is tested as a system and consists of the FM Approved portable, FM Approved battery, and FM Approved accessories or options, or both. This FM Approved portable and battery combination must be strictly observed. There must be no substitution of items, even if the substitute has been previously Approved with a different Motorola communications equipment unit. Approved configurations are listed in the FM Product Listing Manual that was included with your radio.

11 xi Table of Contents Section Section SAFETY INFORMATION Introduction.0 Scope of Manual Warranty and Service Support Warranty Period and Return Instructions After Warranty Period Piece Parts Technical Support Radio Model Information... - Section Accessories.0 Antennas Carrying Accessories Chargers Batteries Adaptors Audio Accessories Option Boards Manuals Retrofit Kit Service Kits... - Section Service Aids.0 Recommended Test Tools Service Aids Test Equipment Programming/Test Cable... - Section Maintenance.0 Introduction Preventive Maintenance Inspection Cleaning Procedures Safe Handling of CMOS and LDMOS Devices Repair Procedures and Techniques General Disassembling and Reassembling the Radio General... -

12 xii.0 Radio Disassembly Detailed Front Cover from Chassis Disassembly Chassis Assembly Disassembly Keypad/Option Board Disassembly Speaker, Microphone, and Wire Disassembly PTT Disassembly Control Top Disassembly Radio Reassembly Detailed Control Top Reassembly PTT Reassembly Speaker Reassembly Keypad Option Board, Microphone and Wire Reassembly Chassis Assembly Reassembly Chassis and Front Cover Reassembly Option Board Installation Configuring the Radio after Option Board Installation Additional Configuration required by the DTMF Option Board Mechanical View and Parts List GP88s Exploded View and Parts List...-7 Section 5 Transceiver Performance Testing.0 Introduction Setup Test Mode RF Test Mode...5- Section Radio Tuning And Programming.0 Introduction Radio Tuning Setup CPS Programming Setup Cloning Information...- Section 7 Controller Information.0 Overview Radio Power Distribution Controller Board General Digital Architecture Controller Schematics (0-70MHz for 8807Z0 & -7MHz for 88075Z0)7-5 Complete Controller Schematic Diagram...7-5

13 xiii Controller ASFIC/ON_OFF Schematic Diagram Controller Micro Processor Schematic Diagram Controller Memory Schematic Diagram Controller Audio Power Amplifier Schematic Diagram Controller Interface Schematic Diagram Controller Schematics (0-70MHz for 8807Z0, Z0 & -7MHz for 88075Z0, Z0)7- Complete Controller Schematic Diagram Controller ASFIC/ON_OFF Schematic Diagram Controller Micro Processor Schematic Diagram Controller Memory Schematic Diagram Controller Audio Power Amplifier Schematic Diagram Controller Interface Schematic Diagram Section 8 Keypad Board Information.0 Theory of Operation Troubleshooting Chart Parts List (Keypad) Keypad Board And Schematic Diagram Keypad Board Top and Bottom View (PCB No. 885Z0) Keypad Board Schematic Diagram Section 9A Model Chart and Test Specifications (0-70 MHz).0 Model Chart...9A-.0 Specifications...9A-.0 Transmitter...9A-. General...9A-.0 Receiver...9A-5. Receiver Front-End...9A-5. Receiver Back-End...9A-. Automatic Gain Control Circuit...9A Frequency Generation Circuitry...9A-8 5. Synthesizer...9A-9 5. VCO - Voltage Controlled Oscillator...9A-0.0 Notes For All Schematics and Circuit Boards...9A- 7.0 Circuit Board/Schematic Diagrams and Parts List...9A- UHF (0-70MHz) Main Board Top Side PCB No. 8807Z0...9A- UHF (0-70MHz) Main Board Bottom Side PCB No. 8807Z0...9A- UHF Controls And Switches Schematic Diagram...9A-5 UHF Receiver Front End Schematic Diagram...9A- UHF Receiver Back End Schematic Diagram...9A-7 UHF Synthesizer Schematic Diagram...9A-8 UHF Voltage Controlled Oscillator Schematic Diagram...9A-9

14 xiv UHF Transmitter Schematic Diagram... 9A-0 UHF Harmonic Filter Schematic Diagram... 9A- UHF Radio Parts List... 9A- 8.0 Circuit Board/Schematic Diagrams and Parts List... 9A-5 UHF (0-70MHz) Main Board Top Side PCB No. 8807Z0... 9A-5 UHF (0-70MHz) Main Board Bottom Side PCB No. 8807Z0... 9A- UHF Controls And Switches Schematic Diagram... 9A-7 UHF Receiver Front End Schematic Diagram... 9A-8 UHF Receiver Back End Schematic Diagram... 9A-9 UHF Synthesizer Schematic Diagram... 9A-0 UHF Voltage Controlled Oscillator Schematic Diagram... 9A- UHF Transmitter Schematic Diagram... 9A- UHF Harmonic Filter Schematic Diagram... 9A- UHF Radio Parts List... 9A- 9.0 Circuit Board/Schematic Diagrams and Parts List... 9A-8 UHF (0-70MHz) Main Board Top Side PCB No. 8807Z0... 9A-8 UHF (0-70MHz) Main Board Bottom Side PCB No. 8807Z0... 9A-9 UHF Controls And Switches Schematic Diagram... 9A-0 UHF Receiver Front End Schematic Diagram... 9A- UHF Receiver Back End Schematic Diagram... 9A- UHF Synthesizer Schematic Diagram... 9A- UHF Voltage Controlled Oscillator Schematic Diagram... 9A- UHF Transmitter Schematic Diagram... 9A-5 UHF Harmonic Filter Schematic Diagram... 9A- UHF Radio Parts List... 9A Troubleshooting charts... 9A-5 Troubleshooting Flow Chart for Controller... 9A-5 Troubleshooting Flow Chart for Receiver (Sheet of )... 9A-5 Troubleshooting Flow Chart for Receiver (Sheet of )... 9A-5 Troubleshooting Flow Chart for Transmitter... 9A-5 Troubleshooting Flow Chart for Synthesizer... 9A-55 Troubleshooting Flow Chart for VCO... 9A-5 Section 9B Model Chart and Test Specifications (-7 MHz).0 Model Chart... 9B-.0 Specifications... 9B-.0 Transmitter... 9B-. General... 9B-.0 Receiver... 9B-5. Receiver Front-End... 9B-5. Receiver Back-End... 9B-. Automatic Gain Control Circuit... 9B Frequency Generation Circuitry... 9B-8 5. Synthesizer... 9B-9

15 xv 5. VCO - Voltage Controlled Oscillator...9B-0.0 Notes For All Schematics and Circuit Boards...9B- 7.0 Circuit Board/Schematic Diagrams and Parts List...9B- VHF (-7MHz) Main Board Top Side PCB No Z0...9B- VHF (-7MHz) Main Board Bottom Side PCB No Z0...9B- VHF Controls And Switches Schematic Diagram...9B-5 VHF Receiver Front End Schematic Diagram...9B- VHF Receiver Back End Schematic Diagram...9B-7 VHF Synthesizer Schematic Diagram...9B-8 VHF Voltage Controlled Oscillator Schematic Diagram...9B-9 VHF Transmitter Schematic Diagram...9B-0 VHF Radio Parts List...9B- 8.0 Circuit Board/Schematic Diagrams and Parts List...9B- VHF (-7MHz) Main Board Top Side PCB No Z0...9B- VHF (-7MHz) Main Board Bottom Side PCB No Z0...9B-5 VHF Controls And Switches Schematic Diagram...9B- VHF Receiver Front End Schematic Diagram...9B-7 VHF Receiver Back End Schematic Diagram...9B-8 VHF Synthesizer Schematic Diagram...9B-9 VHF Voltage Controlled Oscillator Schematic Diagram...9B-0 VHF Transmitter Schematic Diagram...9B- VHF Radio Parts List...9B- 9.0 Circuit Board/Schematic Diagrams and Parts List...9B- VHF (-7MHz) Main Board Top Side PCB No Z0...9B- VHF (-7MHz) Main Board Bottom Side PCB No Z0...9B-7 VHF Controls And Switches Schematic Diagram...9B-8 VHF Receiver Front End Schematic Diagram...9B-9 VHF Receiver Back End Schematic Diagram...9B-0 VHF Synthesizer Schematic Diagram...9B- VHF Voltage Controlled Oscillator Schematic Diagram...9B- VHF Transmitter Schematic Diagram...9B- VHF Radio Parts List...9B- 0.0 Troubleshooting Charts...9B-9 Troubleshooting Flow Chart for Controller...9B-9 Troubleshooting Flow Chart for Receiver (Sheet of )...9B-50 Troubleshooting Flow Chart for Receiver (Sheet of )...9B-5 Troubleshooting Flow Chart for Transmitter...9B-5 Troubleshooting Flow Chart for Synthesizer...9B-5 Troubleshooting Flow Chart for VCO...9B-5 Section 0 Flex Layout/Schematic Diagrams and Parts Lists.0 Keypad-Controller Interconnect Flex Schematic for Keypad-Controller Interconnect Flex Schematic For Speaker/Mic Assembly J

16 xvi.0 Parts List for Speaker/Mic Assembly J Glossary of Terms... G-

17 - Section INTRODUCTION.0 Scope of Manual This manual is intended for use by service technicians familiar with similar types of equipment. It contains service information required for the equipment described and is current as of the printing date. Changes which occur after the printing date may be incorporated by a complete Manual revision or alternatively as additions. NOTE Before operating or testing these units, please read the Safety Information Section in the front of this manual..0 Warranty and Service Support Motorola offers long term support for its products. This support includes full exchange and/or repair of the product during the warranty period, and service/ repair or spare parts support out of warranty. Any "return for exchange" or "return for repair" by an authorised Motorola Dealer must be accompanied by a Warranty Claim Form. Warranty Claim Forms are obtained by contacting an Authorised Motorola Dealer.. Warranty Period and Return Instructions The terms and conditions of warranty are defined fully in the Motorola Dealer or Distributor or Reseller contract. These conditions may change from time to time and the following notes are for guidance purposes only. In instances where the product is covered under a "return for replacement" or "return for repair" warranty, a check of the product should be performed prior to shipping the unit back to Motorola. This is to ensure that the product has been correctly programmed or has not been subjected to damage outside the terms of the warranty. Prior to shipping any radio back to the appropriate Motorola warranty depot, please contact Customer Services. All returns must be accompanied by a Warranty Claim Form, available from your Customer Services representative. Products should be shipped back in the original packaging, or correctly packaged to ensure no damage occurs in transit.. After Warranty Period After the Warranty period, Motorola continues to support its products in two ways.. Motorola's Accessories and Aftermarket Division (AAD) offers a repair service to both end users and dealers at competitive prices.. AAD supplies individual parts and modules that can be purchased by dealers who are technically capable of performing fault analysis and repair.

18 - Warranty and Service Support. Piece Parts Some replacement parts, spare parts, and/or product information can be ordered directly. If a complete Motorola part number is assigned to the part, it is available from Motorola s Accessories and Aftermarket Division (AAD). If no part number is assigned, the part is not normally available from Motorola. If the part number is appended with an asterisk, the part is serviceable by Motorola Depot only. If a parts list is not included, this generally means that no user-serviceable parts are available for that kit or assembly. All orders for parts/information should include the complete Motorola identification number. All part orders should be directed to your local AAD office. Please refer to your latest price pages.

19 Warranty and Service Support -. Technical Support Technical support is available to assist the dealer/distributor in resolving any malfunction which may be encountered. Initial contact should be by telephone wherever possible. When contacting Motorola Technical Support, be prepared to provide the product model number and the unit s serial number. Toll-Free Country or Territory Number China Indonesia Malaysia Philippines Singapore Thailand Non-Toll-Free Country or Territory Number China (8-0) 8-8 Hong Kong SAR (85) 9-88 India (9) Indonesia (-) Korea (8) -50 Malaysia (0) Philippines (-) Singapore (5) 8-77 Taiwan (88) ext. 08 Thailand () Vietnam (8) All Other Countries IDD Code+(5)-855

20 - Radio Model Information.0 Radio Model Information The model number and serial number are located on a label attached to the back of your radio. You can determine the RF output power, frequency band, protocols, and physical packages. The example below shows one portable radio model number and its specific characteristics. Table - Radio Model Number (Example: AZHKDC9AA) Type of Unit Model Series Freq. Band Power Level Physical Packages Channel Spacing Protocol Feature Level AZ H K VHF (- 7 MHz) D -5W C GP88s 9 Programmable AA Conventional GP88s R UHF (0-70 MHz) H = Portable AZ = Country Code

21 - Section ACCESSORIES.0 Antennas PMAD0A PMAD05A PMAD0A PMAD0A PMAD0A PMAD05A PMAE00A PMAE00A NAE8AR VHF 9cm Antenna (-55 MHz) VHF 9cm Antenna (50- MHz) VHF 9cm Antenna (55-7 MHz) VHF cm Antenna (50- MHz) VHF cm Antenna (-55 MHz) VHF cm Antenna (55-7 MHz) UHF 9cm Antenna (0- MHz) (Stubby) UHF 9cm Helical Antenna (0-70 MHz) UHF Whip Antenna (0-70 MHz).0 Carrying Accessories HLN97A HLN98A 85Z0 Spring Belt Clip - Large (for belt width) Spring Belt Clip - Medium (for.5 belt width) Lanyard.0 Chargers PMTN0A Charger, Single Unit Pocket only.0 Batteries PMNN07A PMNN00A AA NiMH Battery (Black) AFAT NiCd Battery (Black) 5.0 Adaptors HLN975 BNC-RF Adaptor

22 - Audio Accessories.0 Audio Accessories HMN900 HMN977 HMN975 BDN HMN90 BDN8 BDN70 PMMN00 Remote Speaker Microphone Earbud w/o Volume Control Earbud w/volume Control Earset/Earbud w/mic & PTT Headset with Boom Mic Headset w/noise Cancelling Boom Mic Flexible Ear Receivers (Rx only) Temco Remote Speaker Microphone 7.0 Option Boards RLN855A DTMF Decode Option Board 8.0 Manuals 80J 80J7 80J8 PMLN57A GP88s User Guide GP88s Service Manual GP88s Selling Guide GP88s Product Manual 9.0 Retrofit Kit PMLN5A GP88s Keypad Retrofit Kit 0.0 Service Kits PMKN00 PMKN H0 8808J58 PMVN07 PMVN08 PMVN09 PMVN07 Programming/Test Cable Cloning Cable Battery Eliminator Housing Eliminator Customer Programmable Software (Diskette) Customer Programmable Software(CD Rom) Tuner Installation Kit (Disk) Tuner Installation Kit (CD)

23 - Section SERVICE AIDS.0 Recommended Test Tools Table - lists the tools recommended for working on this family of radios. These tools are also available from Motorola. Table - Recommended Test Tools Motorola Part No. Description Application 8087A A 8087A5 0808A 8075A7 0808A8 0808A A8 85C7 808A98 000A B R-070A or R-9A TT907A National Service Technical Guide Extractor, -contact Heat controller with safety stand or Safety stand only Portable desoldering unit 0.05 replacement tip, 5/pk Miniature digital readout soldering station (incl. / micropoint tip) Illuminated magnifying glass with lens attachment. Anti-static grounding kit Straight prober Brush Solder (RMA type), /7, 0.00 diameter lb. spool RMA liquid flux Shields and surfacemounted component - IC removal/rework station (order all heat-focus heads separately) Shields and surfacemounted component - IC removal/rework station SMD0000 M.A.P.E. Repairing Leadless Component Assemblies Removal of discrete surface-mounted devices For 0808A portable desoldering unit. Used during all radio assembly and disassembly procedures Removal and assembly of surface-mounted integrated circuits and shields Removal and assembly of surface-mounted integrated circuits and shields How to successfully remove and replace surface mount devices.

24 - Service Aids.0 Service Aids Table - lists service aids recommended for working on the GP88s Radios. While all of these items are available from Motorola, most are standard shop equipment items, and any equivalent item capable of the same performance may be substituted for the item listed. Table - Service Aids Motorola Part No. Description Application RLN0A Portable Test Set Enables connection to the audio/accessory jack. Allows switching for radio testing. PMVN09 Tuner - Software on.5 floppy diskettes Tune hardware parameters, front end, power, deviation, etc. PMVN07 Tuner - Software on CD Rom Tune hardware parameters, front end, power, deviation, etc. PMVN07 PMVN08 Customer Programming Software - Software on.5 floppy diskettes Customer Programming Software - Software on CD Rom Program customer option and channel data. Program customer option and channel data. PMKN00A Programming Cable/Test Cable Connects radio to RIB (RLN008B). PMKN00A Radio to Radio Cloning Cable Allows a radio to be duplicated from a master radio by transferring programmed data from the master radio to the other. RLN008B Radio Interface Box Enables communications between the radio and the computer s serial communications adapter. HLN975B BNC-RF Adaptor Adapts radio s antenna port to BNC cabling of test equipment H0 8808J58 Shop Battery Eliminator Bench Test Housing Eliminator Interconnects radio to power supply. Provides for troubleshooting of the radio when the housing is removed A57 Wall-Mounted Power Supply Used to supply power to the RIB (0 VAC) A5 Wall-Mounted Power Supply Used to supply power to the RIB (0 VAC) 0809B7 or 0809B7 Computer Interface Cable Use B7 for the IBM PC AT. All other IBM models use B7. Connects the computer s serial communications adapter to the RIB. (RLN008B)

25 Test Equipment -.0 Test Equipment Table - lists test equipment required to service the GP88s Radios and other two-way radios. Table - Recommended Test Equipment Motorola Part No. Description Characteristics Application R000, R00, or R00 with trunking option Service Monitor This monitor will substitute for items with an asterisk * Frequency/deviation meter and signal generator for wide-range troubleshooting and alignment *R09 Digital Multimeter Two meters recommended for AC/DC voltage and current measurements *S00 Audio Oscillator 7 to 00Hz tones Used with service monitor for injection of PL tones *S05, *SKN009, *SKN00 AC Voltmeter, Power Cable for meter, Test leads for meter mv to 00 V, 0 Megohm input impedance Audio voltage measurements R05 Dual-trace Oscilloscope 0 MHz bandwidth, 5 mv/cm - 0 V/cm Waveform measurements *S50, *ST5 (VHF) *ST (UHF) *T0 Wattmeter, Plug-in Elements (VHF & UHF), RF Dummy Load 50-Ohm, ±5% accuracy 0 W, max MHz, 00 W Transmitter power output measurements S9 RF Millivolt Meter 00 µv to VRF, 0 khz to. GHz RF level measurements *R0 SINAD Meter Receiver sensitivity measurements S7 or S8 (prog) DC Power Supply 0-0 Vdc, 0-5 Amps Bench supply for 7.5Vdc

26 - Programming/Test Cable.0 Programming/Test Cable 5 POSITION MALE CONNECTOR 5 POSITION FEMALE CONNECTOR P P.0 CABLE.0 CABLE P Figure - Programming/Test Cable.5mm mono.5mm stereo P.5mm stereo and.5mm.5mm Tip Orange (Speaker +).5mm Sleeve.5mm Tip (Microphone).5mm.5mm Center 5 Blue White Spiral Yellow 7 ohm P 5 ways Female D Connector Components molded inside K + UF,V 5% P 5 ways Male D 5 5 Figure - Wiring of the Connectors

27 Programming/Test Cable -5 For front-end tuning use only Figure - Front-end Filter Tuning Using rd Battery Contact Figure - Battery Terminals

28 - Programming/Test Cable THIS PAGE INTENTIONALLY LEFT BLANK

29 - Section MAINTENANCE.0 Introduction This chapter provides details about the following: Preventive maintenance (inspection and cleaning) Safe handling of CMOS and LDMOS devices Disassembly and reassembly of the radio Repair procedures and techniques Installation of Option Boards.0 Preventive Maintenance The radios do not require a scheduled preventive maintenance program; however, periodic visual inspection and cleaning is recommended.. Inspection Check that the external surfaces of the radio are clean, and that all external controls and switches are functional. It is not recommended to inspect the interior electronic circuitry.. Cleaning Procedures The following procedures describe the recommended cleaning agents and the methods to be used when cleaning the external and internal surfaces of the radio. External surfaces include the front cover, housing assembly and battery case. These surfaces should be cleaned whenever a periodic visual inspection reveals the presence of smudges, grease, and/or grime. NOTE Internal surfaces should be cleaned only when the radio is disassembled for service or repair. Pos The only recommended agent for cleaning the external radio surfaces is a 0.5% solution of a mild dishwashing detergent in water. The only factory recommended liquid for cleaning the printed circuit boards and their components is isopropyl alcohol (70% by volume). CAUTION: The effects of certain chemicals and their vapors can have harmful results on certain plastics. Avoid using aerosol sprays, tuner cleaners, and other chemicals. Cleaning External Plastic Surfaces Apply the 0.5% detergent-water solution sparingly with a stiff, non-metallic, short-bristled brush to work all loose dirt away from the radio. Use a soft, absorbent, lintless cloth or tissue to remove the solution and dry the radio. Make sure that no water remains entrapped near the connectors, cracks, or crevices.

30 - Safe Handling of CMOS and LDMOS Devices Cleaning Internal Circuit Boards and Components Isopropyl alcohol (70%) may be applied with a stiff, non-metallic, short-bristled brush to dislodge embedded or caked materials located in hard-to-reach areas. The brush stroke should direct the dislodged material out and away from the inside of the radio. Make sure that controls or tunable components are not soaked with alcohol. Do not use high-pressure air to hasten the drying process since this could cause the liquid to collect in unwanted places. After completing of the cleaning process, use a soft, absorbent, lintless cloth to dry the area. Do not brush or apply any isopropyl alcohol to the frame, front cover, or back cover. NOTE Always use a fresh supply of alcohol and a clean container to prevent contamination by dissolved material (from previous usage)..0 Safe Handling of CMOS and LDMOS Devices Pos Complementary metal-oxide semiconductor (CMOS) devices are used in this family of radios, and are susceptible to damage by electrostatic or high voltage charges. Damage can be latent, resulting in failures occurring weeks or months later. Therefore, special precautions must be taken to prevent device damage during disassembly, troubleshooting, and repair. Handling precautions are mandatory for CMOS circuits and are especially important in low humidity conditions. DO NOT attempt to disassemble the radio without first referring to the following CAUTION statement. CAUTION: This radio contains static-sensitive devices. Do not open the radio unless you are properly grounded. Take the following precautions when working on this unit: Store and transport all CMOS devices in conductive material so that all exposed leads are shorted together. Do not insert CMOS devices into conventional plastic snow trays used for storage and transportation of other semiconductor devices. Ground the working surface of the service bench to protect the CMOS device. We recommend using the Motorola Static Protection Assembly (part number 0808A8), which includes a wrist strap, two ground cords, a table mat, and a floor mat. Wear a conductive wrist strap in series with a 00k resistor to ground. (Replacement wrist straps that connect to the bench top covering are Motorola part number RSX- 05.) Do not wear nylon clothing while handling CMOS devices. Do not insert or remove CMOS devices with power applied. Check all power supplies used for testing CMOS devices to be certain that there are no voltage transients present. When straightening CMOS pins, provide ground straps for the apparatus used. When soldering, use a grounded soldering iron. If at all possible, handle CMOS devices by the package and not by the leads. Prior to touching the unit, touch an electrical ground to remove any static charge that you may have accumulated. The package and substrate may be electrically common. If so, the reaction of a discharge to the case would cause the same damage as touching the leads.

31 Repair Procedures and Techniques General -.0 Repair Procedures and Techniques General Parts Replacement and Substitution When damaged parts are replaced, identical parts should be used. If the identical replacement part is not locally available, check the parts list for the proper Motorola part number and order the part from the nearest Motorola Communications parts center listed in the Piece Parts section of this manual. Rigid Circuit Boards This family of radios uses bonded, multi-layer, printed circuit boards. Since the inner layers are not accessible, some special considerations are required when soldering and unsoldering components. The printed-through holes may interconnect multiple layers of the printed circuit. Therefore, exercise care to avoid pulling the plated circuit out of the hole. When soldering near the -pin and 0-pin connectors: Avoid accidentally getting solder in the connector. Be careful not to form solder bridges between the connector pins. Examine your work closely for shorts due to solder bridges. Flexible Circuits The flexible circuits are made from a different material than the rigid boards, and require different soldering techniques. Excessive prolonged heat on a flexible circuit can damage the material. Therefore, avoid excessive heat and excessive bending. For parts replacement, use the ST-087 Temperature-Controlled Solder Station with a degree tip, and use small diameter solder such as ST-. The smaller size solder will melt faster and require less heat to be applied to the circuit. To replace a component on a flexible circuit:. Grasp with seizers (hemostats) the edge of the flexible circuit near the part to be removed.. Pull gently.. Apply the tip of the soldering iron to the component connections while pulling with the seizers. NOTE Do not attempt to puddle-out components. Prolonged application of heat may damage the flexible circuit. Chip Components Use either the RLN-0 Hot-Air Repair Station or the Motorola 0808B5 Repair Station for chip component replacement. When using the 0808B5 Repair Station, select the TJ-5 minithermojet hand piece. On either unit, adjust the temperature control to 700 degrees F. (70 degrees C), and adjust the airflow to a minimum setting. Airflow can vary due to component density. To remove a chip component, select a hot-air hand piece and position the nozzle of the hand piece approximately /8 above the component to be removed. Begin applying the hot air. Once the solder reflows, remove the component using a pair of tweezers. Using solder wick and a soldering iron or a power desoldering station, remove the excess solder from the pads.

32 - Disassembling and Reassembling the Radio General To replace a chip component using a soldering iron, select the appropriate micro-tipped soldering iron and apply fresh solder to one of the solder pads. Using a pair of tweezers, position the new chip component in place while heating the fresh solder. Once solder wicks onto the new component, remove the heat from the solder. Heat the remaining pad with the soldering iron and apply solder until it wicks to the component. If necessary, touch up the first side. All solder joints should be smooth and shiny. To replace a chip component using hot air, select the hot-air hand piece and reflow the solder on the solder pads to smooth it. Apply a drop of solder paste flux to each pad. using a pair of tweezers, position the new component in place. Position the hot-air hand piece approximately /8 above the component and begin applying heat. Once the solder wicks to the component, remove the heat and inspect the repair. All joints should be smooth and shiny. Shields Removing and replacing shields will be done with the R-070 station with the temperature control set to approximately 5 F (5 C); 5 F (0 C) max. To remove the shield, place the circuit board in the R-070 s holder. Select the proper heat focus head and attach it to the heater chimney. Add solder paste flux around the base of the shield. Position the shield under the heat-focus head. Lower the vacuum tip and attach it to the shield by turning on the vacuum pump. Lower the focus head until it is approximately /8 (0.cm) above the shield. Turn on the heater and wait until the shield lifts off the circuit board. Once the shield is off, turn off the heat, grab the part with a pair of tweezers, and turn off the vacuum pump. Remove the circuit board from the R-070 s circuit board holder. To replace the shield, add solder to the shield if necessary, using a micro-tipped soldering iron. Next, rub the soldering iron tip along the edge of the shield to smooth out any excess solder. Use solder wick and a soldering iron to remove excess solder from the solder pads on the circuit board. Place the circuit board back in the R070 s circuit board holder. Place the shield on the circuit board using a pair of tweezers. Position the heat-focus head over the shield and lower it to approximately /8 above the shield. Turn on the heater and wait for the solder to reflow. Once complete, turn off the heat, raise the heat-focus head and wait approximately one minute for the part to cool. Remove the circuit board and inspect the repair. No cleaning should be necessary. 5.0 Disassembling and Reassembling the Radio General Since these radios may be disassembled and reassembled with the use of only four (board to casting) screws, it is important to pay particular attention to the snaps and tabs, and how parts align with each other. The following tools are required for disassembling the radio: chassis opener keypad retainer tool TORX T screwdriver If a unit requires more complete testing or service than is customarily performed at the basic level, send this unit to a Motorola Authorized Service Center.

33 Radio Disassembly Detailed -5 The following disassembly procedures should be performed only if necessary: Chassis Assembly Disassembly (Paragraph.) Keypad/Option Board Disassembly (Paragraph.) Speaker, Microphone, and Wire Disassembly (Paragraph.) PTT Disassembly (Paragraph.5) Control Top Disassembly (Paragraph.).0 Radio Disassembly Detailed. Front Cover from Chassis Disassembly. Turn off the radio.. Remove the battery: a. Pull down on the two battery-release buttons. b. With the buttons pulled down, the top of the battery will fall from the radio. c. Remove the battery from the radio. Battery Release Buttons Dust Cover. Remove the antenna. Figure - Battery Removal

34 - Radio Disassembly Detailed. Pull the volume and channel selector knobs off of their shafts. Remove the dust cover. Figure - Knob Removal Knobs NOTE Both knobs slide on and off. However, they are supposed to fit very tightly on their shafts. 5. Separate the chassis from the internal electronics front cover assembly by using the chassis opener (part number 8070Z0). Place the broad side of the opener into the slots located at the base of the radio (see Figure -). Press the handle of the opener downwards. This pressing action forces the thin inner plastic wall toward the base of the radio, releasing the two chassis base tabs. Radio Chassis Pos Figure - Chassis Removal CAUTION: Marring the front cover O-ring sealing area will prevent the radio from sealing properly. NOTE The jumper flex and wire assembly connecting the front cover assembly and the chassis prevent you from completely separating the two units.. Lay the chassis down. Rotate the front cover backward and slightly away from the chassis. 7. Lift the latch on the main circuit board to release the jumper flex from its connector.

35 Radio Disassembly Detailed Unplug the wires from the -pin connector. Jumper Flex Latch Wire Assembly -Pin Connector Figure - Unlatch Flex Connectors. Chassis Assembly Disassembly Use a TORX screwdriver with a T head to remove the four screws holding the main board to the chassis. Main Board Radio Chassis O-Ring Retaining Features Pos Figure -5 Remove Main Board from Chassis. Lift the main board from the chassis (See Figure -5). CAUTION: Refer to the CMOS CAUTION paragraph on page before removing the main board. Be sure to use ESD protection when handling circuit boards.

36 -8 Radio Disassembly Detailed. Remove the six small O-ring retainers from their slots in the chassis. Note the alignment of the retainers for reassembly.. Remove the O-ring.. Keypad/Option Board Disassembly. If the disassembly of the keypad printed circuit board is required, open the catches on the keypad retainer and lift the wire assembly up. (See Figure -.). Lay this wire assembly to one side.. To remove the keypad retainer shield: a. Insert the keypad retainer tool (part number 85707Z0) in the opening at the end of the keypad retainer arm tab. b. Pry the tab away from the side of the front cover until it moves past the ledges on the side wall. Duplicate this procedure for each of the four retainer arm tabs. Keypad Retainer Arm Tabs () Keypad Retainer Tool Wire Assembly Catches Retainer Figure - Remove Retainer. Note that the two top hooks are still held underneath the front cover right below the speaker. Lift the keypad retainer out of the front cover; then, lift and pivot the two hooks out of the front cover.

37 Radio Disassembly Detailed The keypad/option board, and the keypad, can be removed without the use of tools. Retainer Jumper Flex Keypad/Option Board Keypad Radio Housing Wire Assembly Figure -7 Removing the Keypad Retainer and Other Boards from the Radio Housing NOTE At this point, the Option Board Installation Procedure should be performed, if necessary.. Speaker, Microphone, and Wire Disassembly NOTE The speaker is held in place with a two-legged retainer bracket. The bracket legs are secured by the front cover slots. Be careful not to damage the speaker when removing the retainer bracket.. Using a screwdriver, push down on the portion of the speaker retainer bracket pointing toward the bottom of the radio. Then, remove the retainer by slightly pushing it toward the top of the radio until you slide it past the front cover slot.. Pull the rubber microphone boot from its seated position. Unless you are replacing the microphone, leave it in the boot.

38 -0 Radio Disassembly Detailed Insulator Speaker Retainer Felt Speaker Microphone Wire Connector Mic Boot Radio Housing Figure -8 Removal Speaker-Microphone Assembly. When reassembling the microphone in its boot, make sure the microphone port faces the round hole in the bottom of the boot..5 PTT Disassembly. If required, the PTT bezel, and the PTT seal assembly, can be disassembled using a small screwdriver, as follows: Snaps Flat Blade Screwdriver PTT Bezel T Tab PTT Seal PTT Bezel Figure -9 PTT Removal a. Insert the tip of a small screwdriver in between the bezel and side button (refer to Figure -9). b. Insert the tip of a small screwdriver in between side button and PTT button (refer to Figure -9). c. Pry the PTT bezel away from the radio housing. d. If required, the PTT seal can be easily lifted from the bezel without the use of tools.

39 Radio Reassembly Detailed -. Control Top Disassembly. To remove the control top assembly, place a screwdriver next to the antenna boss, and pry it against the top escutcheon. This will lift the top escutcheon away from the top of the front housing.. Remove the control top seal and transmit light pipe. 7.0 Radio Reassembly Detailed 7. Control Top Reassembly. Replace transmit light pipe and control top seal.. Peel off the liners from a new top escutcheon, and place it in the recess in the front cover. Press the top escutcheon down uniformly. 7. PTT Reassembly. Put the PTT seal in the PTT bezel.. Place the bezel T tab in the T slot inside the front cover PTT opening. Slightly slide down the bezel so that the two snaps can be aligned and inserted into the two rectangular slots.. Press the PTT assembly against the front cover opening. NOTE Look inside the front cover to make sure the T-tab and snaps are fully engaged with the front cover. 7. Speaker Reassembly. Align the notch in the speaker at the six o clock position with the tab on the front cover.. Place the speaker retainer bracket into the hole on the top of the front cover, and bend the retainer down to fit underneath the boss below the speaker.

40 - Radio Reassembly Detailed 7. Keypad Option Board, Microphone and Wire Reassembly. Replace the keypad/option board.. Insert the top hooks of the keypad retainer into the slots below the speaker in the front cover. Snap all four of the retainer arm tabs in place in the front cover. NOTE Pull the speaker-microphone wire out of harm s way during reassembly.. Re-insert the microphone and boot into the pocket in the front cover.. Lay the speaker-microphone wire on top of the keypad/option board retainer, align them onto the catches and close the catches. Catches Wire Assembly Retainer Figure -0 Lock retainer catches to the radio housing 7.5 Chassis Assembly Reassembly. Replace the O-ring. The tabs on the O-ring should reach around the chassis and point down.. Stretch the O-ring to place it into the retaining pocket at the bottom end of the chassis. NOTE When properly assembled, the retainers on the O-ring should align with the slots on the chassis. If this is not the case, remove and replace the O-ring until it is aligned with the chassis and completely seated in place around the perimeter.. Replace the battery contact seal (if necessary) surrounding the battery contact.. Place the main circuit board straight down on top of the chassis. NOTE Be sure the battery contact seal protrudes through the chassis and is not pinched under the chassis. 5. Use the T TORX screwdriver to fasten the screws holding the main board to the chassis.

41 Option Board Installation - 7. Chassis and Front Cover Reassembly. Align the chassis assembly end-to-end with the front cover assembly.. Insert the tails of the jumper flex and wire assembly into their respective connectors at the bottom of the front cover.. Push down the latches on the connectors to hold the flex circuit to the main board.. Slide the volume potentiometer and frequency switch shafts into their respective holes in the front cover. 5. Push the chassis assembly completely into the top of the front cover until it settles in place.. Be sure the O-ring is properly seated. 7. Snap the bottom of the chassis into the front cover. 8. Reassemble the knobs, dust cover, antenna, and battery. Radio Chassis Figure - Fastening the Chassis 8.0 Option Board Installation. With the keypad retainer removed, the keypad board can be removed without the use of tools.. Remove the jumper flex from the connector on the keypad board. Notice the orientation of the flex to the connector. Arrows on the jumper flex point to the correct way of inserting the flex into the connector.. Remove the keypad board.

42 - Option Board Installation Retainer Jumper Flex Keypad/Option Board TO KP Wire Assembly Figure - Changing the Keypad/Option Board. Reassemble the option board to the front cover assembly. 5. Insert the jumper flex circuit into the connector on the option board. Notice the orientation of the flex circuit. Arrows on the jumper flex point to the correct way of inserting the flex into the connector.. Replace the retainer by placing the two top hooks into the slots below the speaker in the front cover; then, pivot the retainer into the front cover. Ensure that all four tab arms snap correctly into the front cover. 7. With the keypad option board and retainer correctly in place, the front cover assembly can now be reassembled as described in Service Manual.

43 Option Board Installation Configuring the Radio after Option Board Installation. Connect the radio to the computer following instructions outlined in Section.. Start up the CPS, and read the radio s codeplug.. Open the Radio Configuration dialog box, and proceed to the Option Board tab. From the pull-down menu, choose the option board type that you just installed (choose Simple Decoder for the DTMF option board). Figure - Option Board tab of the Radio Configuration dialog box.. Open the Personality dialog box. For every personality that you want the option board features to be activated, click on the Option Board Feature check box of the Advanced tab. Figure - Advanced tab of the Personality dialog box.

44 - Option Board Installation 8. Additional Configuration required by the DTMF Option Board. In the Tree View window of your CPS, expand the Signalling node. Also expand the DTMF System node. Open each of the DTMF System dialog boxes under this node, and fill in the relevant information pertinant to your DTMF system. Figure -5 DTMF System dialog box

45 Mechanical View and Parts List Mechanical View and Parts List 9. GP88s Exploded View and Parts List Figure - GP88s Radio Exploded View

46 -8 Mechanical View and Parts List Item Motorola Part Number Description Item Motorola Part Number Description See Section Antenna 8090Z0 Knob, Volume 807S07 Knob, Frequency 809Z0 Escutcheon, Top 5 807Z0 Seal, Control Shaft 8098Y0 Lightpipe, Tx Z0 Label, Logo 8 807Z0 Label, Name Z0 Cap, Dust Z0 Bezel, Side Control 75809Z0 Keypad, Side Control 805Z0 Label, Warning See Section 9A & Section 9B Back Cover Kit including chassis main board Z0 Shroud, RF Jack Z0 Pad, Thermal 5 805Z0 Seal, Contact 805Z0 Gasket, O-ring Z0 Chassis 8 See Section Battery 9 HLN98A Beltclip 58095Z Z0 Housing, Front (Plain) Housing, Front (Keypad) 809Z0 Escutcheon, FM Z Z0 Keypad, Dummy (Plain) Keypad, Front (Display) J Keypad Board Assembly 8509Z0 Retainer Plate Z0 Flex, Keypad/Controller Z0 Felt, Speaker Z0 Speaker C0 Boot, Microphone 5090A0 Microphone 70A55 Cap, 00pF Z0 Connector, Wire 850Z0 Retainer, Speaker Z0 Insulator, Speaker 007J05 Screw Z0 Retainer, Jack Z0 Shroud, Jack Z0 Contact, Finger Z0 Pad, VCO Shield

47 5- Section 5 TRANSCEIVER PERFORMANCE TESTING.0 Introduction The radios have been prepared to meet published specifications through their manufacturing process, with the use of laboratory-quality test equipment of highest accuracy. The recommended field service equipment approaches the accuracy of the manufacturing equipment with a few exceptions. Accuracy of the equipment must be maintained in compliance with the manufacturer s recommended calibration schedule..0 Setup Supply voltage can be connected from the battery eliminator. The equipment required for alignment procedures is connected as shown in the Radio Alignment Test Setup diagram. Initial equipment control settings should be as indicated in the following table and should hold for all alignment procedures except as noted in Table 5-. Table 5- Initial Equipment Control Settings Service Monitor Test Set Power Supply Monitor Mode: Power Monitor Spkr set: A Voltage: 7.5Vdc RF Attn: -70 Spkr/load: Speaker DC on/standby: Standby AM, CW, FM: FM PTT: OFF Volt Range: 0V O scope Source: Mod O scope Horiz: 0mSec/Div O scope Vert:.5kHz/Div O scope Trig: Auto Monitor Image: Hi Monitor BW: Nar Monitor Squelch: mid CW Monitor Vol: / CW Current:.5A

48 5- Test Mode.0 Test Mode. RF Test Mode When the radio is operating in its normal environment, the radio s microcontroller controls the RF channel selection, transmitter key-up, and receiver muting. However, when the unit is on the bench for testing, alignment or repair, it is removed from its normal environment. It cannot receive commands from its system and, therefore, the internal microcontroller will not key the transmitter nor unmute the receiver. This prevents the use of normal tune-up procedures. To solve this problem a special routine, called TEST MODE or air test, has been incorporated in the radio. To enter test mode: Turn the radio on. Within ten seconds after the self test is complete, press the side button, (SB) five times in succession. Upon entering test mode, the radio is on carrier squelch mode, 5 khz channel spacing. Each additional press of SB will scroll through to the next channel spacing and a corresponding set of tones will be sounded. Pressing SB will scroll through and access test environments as shown in Table 5-. Pressing SB for seconds will switch the radio to the Control Head Test mode where button test is activated. Any button pressed will generate tone. Pressing SB for seconds in the Control Head Test mode will cause the radio to return to the RF Test mode. NOTE channel number (0 - ) Table 5- Test Environments No. of Beeps Description Function GKC BKC BKC BKC 5 BKC BKC BKC Carrier Squelch Tone Private-Line Digital Private-Line Dual-Tone multiple frequency Unsquelch Open CMP LLE RX: if carrier detected TX: mic audio RX: unsquelch if carrier and tone (9.8Hz) detected TX: mic audio + tone (9.8Hz) RX: unsquelch if carrier and digital code () detected TX: mic audio + digital code () RX: unsquelch if carrier detected TX: selected DTMF tone pair RX: constant unsquelch TX: mic audio RX: if carrier detected TX: mic audio RX: if carrier detected TX: mic audio

49 Test Mode 5- Table 5- Test Channel Spacing No. of BKC Channel Spacing 5 khz.5 khz 0 khz Table 5- Test Frequencies Channel Selector Switch Position Test Channel VHF UHF Low Power 8 High Power TX# or #8 RX# or # Low Power 9 High Power TX# or #9 RX# or # Low Power 0 High Power TX# or #0 RX# or # Low Power High Power TX# or # RX# or # Low Power High Power TX#5 or # RX#5 or # Low Power High Power TX# or # RX# or # Low Power High Power TX#7 or # RX#7 or #

50 5- Test Mode Table 5-5 Receiver Performance Checks Test Name Communications Analyzer Radio Test Set Comments Reference Frequency Mode: PWR MON th channel test frequency* Monitor: Frequency error Input at RF In/Out TEST MODE, Test Channel carrier squelch output at antenna PTT to continuous (during the performance check) Frequency error to be ±00 Hz VHF ±00 Hz UHF Rated Audio Mode: GEN Output level:.0mv RF th channel test frequency* Mod: khz tone at khz deviation Monitor: DVM: AC Volts TEST MODE Test Channel carrier squelch PTT to OFF (center), meter selector to Audio PA Set volume control to.vrms Distortion As above, except to distortion As above As above Distortion <.0% Sensitivity (SINAD) As above, except SINAD, lower the RF level for db SINAD. As above PTT to OFF (center) RF input to be <0.5µ Noise Squelch Threshold RF level set to mv RF As above PTT to OFF (center), meter selection to Audio PA, spkr/ load to speaker Set volume control to.vrms As above, except change frequency to a conventional system. Raise RF level from zero until radio unsquelches. out of TEST MODE; select a conventional system As above Unsquelch to occur at <0.5µV. Preferred SINAD = 9-0dB * See Table 5-

51 Test Mode 5-5 Table 5- Transmitter Performance Checks Test Name Communications Analyzer Radio Test Set Comments Reference Frequency Mode: PWR MON th channel test frequency* Monitor: Frequency error Input at RF In/Out TEST MODE, Test Channel carrier squelch output at antenna PTT to continuous (during the performance check) Frequency error to be ±00 Hz VHF ±00 Hz UHF Power RF As above As above As above Refer to Maintenance Specifications Voice Modulation Mode: PWR MON th channel test frequency* atten to -70, input to RF In/ Out Monitor: DVM, AC Volts Set khz Mod Out level for 0.05Vrms at test set, 80mVrms at AC/DC test set jack As above As above, meter selector to mic Deviation: VHF, UHF.0 khz but 5.0 khz (5 khz Ch Sp). Voice Modulation (internal) Mode: PWR MON th channel test frequency* atten to -70, input to RF In/ Out TEST MODE, Test Channel carrier squelch output at antenna Remove modulation input Press PTT switch on radio. Say four loudly into the radio mic. Measure deviation: VHF, UHF.0 khz but 5.0 khz (5 khz Ch Sp) DTMF Modulation As above, th channel test frequency* TEST MODE, Test Channel DTMF output at antenna As above Deviation: VHF, UHF.05 khz but.5 khz (5 khz Ch Sp) PL/DPL Modulation As above th channel test frequency* BW to narrow TEST MODE, Test Channel TPL DPL As above Deviation: VHF, UHF 500Hz but 000Hz (5 khz Ch Sp). * See Table 5-

52 5- Test Mode THIS PAGE INTENTIONALLY LEFT BLANK

53 - Section RADIO TUNING AND PROGRAMMING.0 Introduction This chapter provides an overview of the Professional Radios Customer Programming Software (CPS) and Universal Tuner which have been designed for use in a Windows 95 environment. Both these software will essentially cover all the functions of the traditional Radio Service Software (RSS) package. They are available in separate kits as shown in the table below: Description Customer Programmable Software (Diskette) Customer Programmable Software(CD Rom) Tuner Installation Kit (Disk) Tuner Installation Kit (CD) Kit Number PMVN07 PMVN08 PMVN09 PMVN07 An Installation instruction manual is contained within each kit.

54 - Radio Tuning Setup.0 Radio Tuning Setup A Windows 95 PC (personal computer) and Universal Tuner are required to tune the radio. To perform the tuning procedures, the radio must be connected to the PC, RIB (Radio Interface Box) and Universal Test Set as shown in figure below. Refer to online help files for the tuning procedures. Transmit 0 db Pad Service Monitor or Counter Power Supply Battery Eliminator DC Voltmeter Radio RF Adaptor HLN975B Program/Test Cable PMKN00A BNC Test Box RLN0A Receive 0 db Pad Audio In RF Generator Tx Rx Wattmeter Audio Generator Sinad Meter AC Voltmeter RIB RLN-008B Tx Data Rx Data Gnd RIB Power Supply Computer Interface Cable Figure - Radio Tuning Setup

55 CPS Programming Setup -.0 CPS Programming Setup Refer to online help files for the CPS Programming procedures. Radio Battery Program/ Test Cable PMKN00A Test Box RLN0A RIB RLN-008B Tx Data Rx Data Gnd RIB Power Supply Computer Interface Cable.0 Cloning Information Figure - CPS Programming Setup Cloning is the process of copying the content of one radio (source radio) into another radio (target radio). Radio content refers to system-type features such as frequency, squelch type options, trunking, etc. Cloning can be performed only on radios with identical model numbers and software options. Radio functionality inherent in one radio cannot be cloned to another radio that does not contain the same functionality. Tuning and alignment information are not transferable and are not affected by cloning. Signaling Identification Numbers (IDs) are duplicated in the cloning process. Unique IDs may be assigned with the CPS. Unsuccessful cloning attempts will not damage the radio. Procedure:. Turn source and target radios off.. Connect cloning cable to side connector of both radios.. Turn on target radio.. On source radio, simultaneously press side buttons and then turn radio on. Both radios produce a clone-entry tone and turn on their green LEDs. 5. Release both side buttons. The electronic transfer process begins and will take approximately one to three minutes.. When cloning is completed, both radios reset themselves and turn their green LEDs off. The source radio produces a clone-exit tone. 7. Turn both radios off. 8. Disconnect the cloning cable from both radios and turn them on for normal operation.

56 - Cloning Information THIS PAGE INTENTIONALLY LEFT BLANK

57 7- Section 7 CONTROLLER INFORMATION.0 Overview This section provides a detailed theory of operation for the radio and its components..0 Radio Power Distribution Accessory Jacks Keypad/Option Board Audio PA UNSWB+ R Vdda Reg. R R Vdda 7.5V Battery Fuse SWB+ R Vddd Reg. Vdda MECH. SWB+ Control On/Off Switch TX. Led MCU Micro P, ROM & EEPROM LCD Driver ASFIC_CMP FRACTN VCOBIC LVZIF Low Battery Detect Ant. SW 5V Reg. 5V Jumpers Dual Vdd Regulator Scheme Single Vdd Regulator Scheme PA, Driver PCIC(ALC) RF. AMP, IF AMP Ext. RX. Buffer () R Y Y R N N R N Y R Y N Vdda Y N Figure 7- DC Power Distribution Block Diagram Figure 7- illustrates the DC distribution throughout the radio board. A 7.5V battery (BATT 7.5V) supplies power directly to the electronic on/off control as UNSWB+. When the radio is turned on, MECH_SWB+ (on/off/volume control) will trigger the electronic on/off control(momentary-on path), then SWB+ is distributed as shown in Figure 7-. Vdda from.v Vdda regulator will then supply the microprocessor. Data is then sent to ASFIC_CMP to turn on GCB(DAC). GCB will take over the momentary-on path within ms. SWB+ will continue to support the whole board until the radio is turned off.

58 7- Controller Board Radio will be turned-off on two conditions;. MECH_SWB+ turned off. Low battery When low battery level is detected by the microprocessor through both conditions above, it will store the radio personality data to EEPROM before turning off..0 Controller Board. General The controller board is the central interface between the various subsystems of the radio. It is separated into digital and audio architectures. The digital portion consists of a special Motorola microcontroller (HCFL0). The audio power amplifier (Audio PA) and audio/signalling/filter/ companding IC (ASFIC_CMP) form the backbone of the audio/signalling architecture..8 MHz Reference Clock from Synthesizer Recovered Audio Squelch To Synthesizer.V Regulator (Vdda) Mod Out ASFIC_CMP Audio/Signalling Architecture Audio PA Internal/ External Microphone External Speaker Internal Speaker To RF Board SPI µp Clock SCI to Side Connector Digital Architecture RAM.V Regulator (Vddd) EEPROM ROM HCFL0 Figure 7- Controller Block Diagram

59 Controller Board 7-. Digital Architecture MCU configuration There is one common MCU architecture for low-tier as well as for the high-tier products. It covers the Conventional and Trunking portables. An open architecture system with the new HCFL0 as the processor is used. Combinations of different size RAM, ROM and EEPROM are available for various application software. ModB/Vstby Supply Under various conditions, the supply to the ModB/Vstby would vary. Table 7- shows these conditions and circuits in operation. Table 7- ModB/Vstby Supply Modes Condition Radio On Radio Off Primary battery removed Circuit Operation Vdd supply voltage via CR Vdd turned off Q gate is pulled low by R Q is switched on U0 supplies.v to ModB/Vstby Vdd turned off Q gate is pulled low by R Q is switched on LiO battery provides.v to ModB/Vstby

60 7- Controller Board THIS PAGE INTENTIONALLY LEFT BLANK

61 7-5. Controller Schematics (0-70MHz for 8807Z0 & -7MHz for 88075Z0) Jumpers R0 R0 R0 R0 R05 Dual Vdd Regulator Scheme Single Vdd Regulator Scheme Non Prime Model Non Prime Model Prime Model Prime Model Y N N N Y N N N N Y Y N Y N N Y Y Y Y N INT_MIC INT_SPN SCI SPN SPP MIC BATT_CODE Vdda RESET V_.V GREEN_LED RED_LED RTA RTA VOL SB RTA0 RTA 5V CSX DACRx DATA MODIN SWB+ LVZIF_SEL PTT.8MHz DEMOD LOCK MECH_SWB+ RSSI SB UNSWB+ CLK INT_MIC INT_SPN SCI SPN SPP MIC BATT_CODE Vdda RESET RED_LED RTA RTA VOL SB RTA0 RTA 5V CSX DACRx DATA MODIN SWB+ LVZIF_SEL PTT GREEN_LED.8MHz DEMOD LOCK MECH_SWB+ RSSI SB UNSWB+ CLK V_.V IF_5V_CTRL IF_BATT_CODE_CTRL IF_PTT_CTRL IF_MECHSWB+_CTRL IF_SCI_CTRL IF_SB_CTRL IF_RED_LED_CTRL IF_DATA_CTRL IF_CSX_CTRL IF_MODIN_CTRL IF_.8MHz_CTRL IF_RSSI_CTRL IF_SB_CTRL IF_GREEN_LED_CTRL IF_VOL_CTRL IF_RTA_CTRL IF_DACRX_CTRL IF_RTA_CTRL IF_RTA_CTRL IF_MIC_CTRL IF_CLK_CTRL IF_DEMOD_CTRL IF_LOCK_CTRL IF_UNSWB+_CTRL IF_LVZIF_SEL_CTRL IF_SWB+_CTRL IF_SPP_CTRL IF_RTA0_CTRL IF_INT_SPN_CTRL IF_INT_MIC_CTRL IF_V_.V_CTRL IF_SPN_CTRL IF_RESET_CTRL IF_Vdda_CTRL C R0 Vddd Vdda PTT RDY RX_AUD_RTN SWB+ TX_AUD_RTN TX_AUD_SND URX_SND Vddd CLK DATA FLAT_RX_SND FLAT_TX_RTN KEYPAD_COL KEYPAD_ROW KEY_INT LCD_SEL LEDBL MISO OPT_ENA PE PG0 PI PJ ON PG0 PI PJ PE FLAT_TX_RTN KEY_INT PTT LEDBL DATA MISO CLK LCD_SEL SWB+ Vddd FLAT_RX_SND TX_AUD_SND OPT_ENA RX_AUD_RTN TX_AUD_RTN RDY KEYPAD_ROW URX_SND KEYPAD_COL Interface D7 FLASH_EN FLASH_OE RAM_CS R_W Vddd XA8 A7 A A A A5 A A7 A8 A9 D0 D D D D D5 D A0 A A0 A A A A A5 A Memory FLASH_OE RAM_CS FLASH_EN R_W Vddd XA8 RTA R_W SB SB SCI SQ_DET SWB+ SYN UNSWB+ VOL VOX Vddd XA8 MISO OFF_BATT_DATA_OUT OPT_ENA PE PG0 PI PJ PTT PTT_MIC RAM_CS RDY RESET RSSI RTA0 RTA RTA D7 DATA EE_CS F00 FLASH_EN FLASH_OE FLAT_SW HSIO KEYPAD_COL KEYPAD_ROW KEY_INT LCD_SEL LOCK LSIO LVZIF_SEL MECH_SWB+ A A7 A8 A9 BATT_DATA_IN BATT_PULL_UP CHACT CLK CSX D0 D D D D D5 D A0 A A0 A A A A A5 A A7 A A A A5 Micro_P LVZIF_SEL BATT_PULL_UP LCD_SEL MISO SWB+ RESET UNSWB+ CLK CSX DATA KEY_INT PTT LOCK PE PG0 PI PJ OPT_ENA RDY FLAT_SW RTA RTA0 RTA SB RTA SB OFF_BATT_DATA_OUT VOL MECH_SWB+ KEYPAD_COL KEYPAD_ROW RSSI SCI SYN TX_AUD_RTN TX_AUD_SND UNSWB+ URX_SND VOX Vdda Vddd FLAT_TX_RTN GREEN_LED HSIO LEDBL LSIO MECH_SWB+ MIC_LINE MISO MODIN OFF_BATT_DATA_OUT RED_LED RESET RSSI RX_AUD_RTN SQ_DET SWB+ AUDIO AUDIO_PA_ENA BATT_CODE BATT_DATA_IN BATT_PULL_UP CHACT CLK CSX DACRX DATA DEMOD EE_CS EXT_SPKR_SEL F00 FLAT_RX_SND FLAT_SW.8MHz V_.V 5V Vddd FLAT_SW BATT_PULL_UP RSSI BATT_CODE V_.V GREEN_LED OFF_BATT_DATA_OUT RED_LED TX_AUD_RTN MECH_SWB+ LEDBL URX_SND MODIN FLAT_TX_RTN RX_AUD_RTN TX_AUD_SND.8MHz DACRX DEMOD ASFIC TP0 5V Vddd Vdda FLAT_RX_SND Vdda Vddd 5V AUDIO AUDIO_PA_ENA INT_MIC INT_SPN MIC MIC_LINE PTT_MIC SPN SPP SWB+ UNSWB+ INT_SPN INT_MIC MIC SPN SPP Audio_PA SH0 SHIELD SH00 SHIELD SH0 SHIELD SH0 SHIELD Memory Shield On/Off Shield ASFIC/Audio PA Shield Micropic Shield ZMY0097-O Complete Controller Schematic Diagram

62 7-0.uF C8 7 5 U07 X50_.7V MISO 8 WP CLK CS HOLD SI SO VCC VSS K x 8 BIT EEPROM 00pF C7 R9 0K EE_CS 5V R 0 7K R00 C 0.uF C87 0.uF C Vdda.0uF C0 SQDET GNDSYN HSIO LCAP LSIO GCB0 GCB GCB CLK CSX DATA CHACT VOX UIO VDDA VDDDAC PLCAP SQIN GNDA DACG DACR DACU DISC AGCCAP U0 09Z VDDSYN TXRTN VDDCP VDDD NC PLCAP SYN GNDD GNDD0 F00 GCB CLK8 VDDRC TXSND URXOUT MICINT MOD GNDRC MICEXT GCB GCB5 AUDIO AUXRX AUXTX TX_AUD_SND MODIN AUDIO FLAT_TX_RTN LEDBL 70K R8 0K R C80 0uF R7.5MEG MECH_SWB+ CR0 9K R Q0 Q05 C0 0.uF C0 0uF Q00 75K R0 UNSWB+ 0K R7 5 CR BATT_CODE C 0.uF SYN F00 TX_AUD_RTN.8MHz RED_LED C9 DATA CLK CSX CHACT SQ_DET LSIO HSIO EXT_SPKR_SEL AUDIO_PA_ENA GREEN_LED Vddd BATT_DATA_IN OFF_BATT_DATA_OUT R7 K OUTPUT SHUTDOWN SENSE VTAP ERROR FEEDBACK GND INPUT LP95ACMM-. U C00.0uF V_.V R0 0 R05 SWB+ Vddd MIC_LINE TP0 C0 0.uF 0 R0 0.uF C0 TP0 C08 00pF 0.uF C09 0 R75 Vdda RESET C 0.uF C 0.uF DEMOD K R9 C79 0K 0.uF R5 0.uF C07 R5 K Vdda URX_SND RX_AUD_RTN VOX DACRx FLAT_RX_SND C0 0.uF.0uF C5.7uF C5 0.uF C C5.0uF FLAT_SW R 00K 5 Q- R98 00K R9 R9 0 R99 0K 5 Q9- C 0.uF R 00K Q9- RSSI BATT_PULL_UP ZMY0099-A Controller ASFIC/ON_OFF Schematic Diagram

63 7-7 PH_PW PH_PW PH_PW PH_CSIO PH5_CSGP PH_CSGP PH7_CSPROG PG_XA PG_XA5 PG_XA PG_XA7 PG5_XA8 PG_AS PH0_PW PG0_XA PC0_DATA0 PC_DATA PC_DATA PC_DATA PC_DATA PC5_DATA5 PC_DATA PC7_DATA7 VSSR VSS VSSL PI PI PI PI PI5 PI PI7 PI0 PF_ADDR PF_ADDR PF_ADDR PF5_ADDR5 PF_ADDR PF7_ADDR7 PFO_ADDR0 PF_ADDR PB_ADDR9 PB_ADDR0 PB_ADDR PB_ADDR PB5_ADDR PB_ADDR PB7_ADDR5 PBO_ADDR8 AVSS XIRQ PJ_CSGP PJ PJ PJ PJ5 PJ PJ7 RESET PJ0_CSGP PG7_R_W PE_AN PE_AN PE_AN PE_AN PE5_AN5 PE_AN PE7_AN7 PE0_AN0 ECLK IRQ MODA_LIR MODB_VSTBY XFC XTAL VDD VDDL VDDR VDDSYN VRH VRL PD0_RXD PD_TXD PD_MISO PD_MOSI PD_SCK PD5_SS PD_LVIN PA0_IC PA_IC PA_IC PA_IC_OC5_OC PA_OC_OC PA5_OC_OC PA_OC_OC PA7_PA_OC AVDD EXTAL LVOUT MC8HCFL0 U VST CSGP CSGP C 00pF 00pF C9 C5 00pF C 00pF R 0K 00pF C5 C9 KEY_INT RESET R_W RTA0 RTA RTA SB SB PJ OFF_BATT_DATA_OUT RTA PE VOL RSSI VOX KEYPAD_COL KEYPAD_ROW PTT_MIC OPT_ENA LOCK PI PTT A A A A A7 A A5 A A A A A0 A9 A8 A7 A A5 A0 D7 D0 D D D D D5 D LVZIF_SEL LCD_SEL BATT_PULL_UP RAM_CS FLASH_EN XA8 BATT_DATA_IN CLK CSX EE_CS PG0 90nH L0 90nH L R7 HSIO DATA FLASH_OE SYN RDY LSIO SQ_DET CHACT MISO R8 0 TP0 TEST_POINT SCI F00 Vddd R57 0K Vddd Vddd LOW BATT 9K R5 80K R.0uF C.0uF C 00pF C9 TP5 TEST_POINT Vddd Mech_SWB+ RT00.0K 5K R UNSWB+ SWB+ 5 CR R 00.7K 7K 7K 0K Q7 TEST_POINT TP05 BOOT_CTRL.7K R9 5 C5 0.uF.7K R0 0.uF C VSS VIN VOUT ILC70CM- U0.V UNSWB+ Vddd FLAT_SW Vddd Q8 7K 7K 8K CR.7K ZMY0000-A Controller Micro Processor Schematic Diagram

64 A A0 A9 A8 A7 A A5 A A A A A0 A A7 A A5 A A A9 A7 A A A A5 A A7 A8 A A0 A A A A A5 A A0 D7 NC D0 D D D D D5 D FLASH ROM GND XA8 D0 D D D D D5 D D EN_CE EN_OE EN_WE VCC FLASH_EN U0 AT9BV R9 R08 XA8 C9 0.uF 00K R0 FLASH_OE. R8 C 0uF VSS WE OE CS 7 0 D0 D D D D D5 D D7 D D D D5 D D7 D8 D RAM A A5 A A7 A8 A9 A A0 A A A A A A A0 VDD 8 U05 SRMB A0 A A A A A5 A A7 A8 A9 A0 A A A A RAM_CS C5 0.uF 00pF C Vddd R78 0K Vddd R_W ZMY000-O Controller Memory Schematic Diagram

65 7-9 UNSWB+ INT_SPN INT_MIC C75 0uF J0 R7 0 C89 000pF J0- J0- J0- GND INT_MIC INT_SPN AUDIO C7 0.uF Vddd R7.K R7 0K Q R 7K U0 TDA857 INPOS 7 INNEG 5 INPOS INNEG SELECT MODE 5 SVR GND VCC 0 0 GND VCC OUTPOS OUTNEG OUTPOS OUTNEG 8 8 NC NC 7 NC 9 NC NC5 9 SWB+ C8 000pF C 0.uF C88 000pF MIC_LINE C70 00pF SPP SPN C7 00pF C85 00pF R5 K C7 00pF C8 00pF C8 00pF Speaker/Mic Connector C7 70pF J0- L00 90nH SPP MIC C7 0uF R7 5.K C50 0.uF Vdda R8 0 R 80K Vddd Q0 5V R Q0 R95 00K PTT_MIC R9 00K Q AUDIO_PA_ENA C0.7uF R9 00K ZMY000-A Controller Audio Power Amplifier Schematic Diagram

66 7-0 R8 K C 00pF C58 00pF 00pF C59 0.uF C7 0.uF C8 C8 0.uF 00pF C E00 URX_SND PG0 PI PJ PE TX_AUD_SND KEY_INT MISO RX_AUD_RTN FLAT_RX_SND FLAT_TX_RTN OPT_ENA TX_AUD_RTN DATA CLK SWB+ KEYPAD_ROW LCD_SEL LEDBL Vddd RDY PTT KEYPAD_COL J00- J00-7 J00-0 J00- J00-0 J00- J00- J00- J00-7 J00- J00- J00-9 J00-0 J00-9 J00- J00- J00-5 J00-5 J00-8 J00- J00-8 J00- J00- J00-5 J00-0 J00-5 J00-9 J00-7 J00-9 J00- J00-8 J00-8 J00- J00- J00- J00-7 J00- J00- J00- J00- J00 0-Pin Connector ZMY000-O Controller Interface Schematic Diagram

67 7-. Controller Schematics (0-70MHz for 8807Z0, Z0 & -7MHz for 88075Z0, Z0) INT_MIC INT_SPN SCI SPN SPP MIC BATT_CODE Vdda RESET V_.V GREEN_LED RED_LED RTA RTA VOL SB RTA0 RTA 5V CSX DACRx DATA MODIN SWB+ LVZIF_SEL PTT.8MHz DEMOD LOCK MECH_SWB+ RSSI SB UNSWB+ CLK INT_MIC INT_SPN SCI SPN SPP MIC BATT_CODE Vdda RESET RED_LED RTA RTA VOL SB RTA0 RTA 5V CSX DACRx DATA MODIN SWB+ LVZIF_SEL PTT GREEN_LED.8MHz DEMOD LOCK MECH_SWB+ RSSI SB UNSWB+ CLK V_.V IF_5V_CTRL IF_BATT_CODE_CTRL IF_PTT_CTRL IF_MECHSWB+_CTRL IF_SCI_CTRL IF_SB_CTRL IF_RED_LED_CTRL IF_DATA_CTRL IF_CSX_CTRL IF_MODIN_CTRL IF_.8MHz_CTRL IF_RSSI_CTRL IF_SB_CTRL IF_GREEN_LED_CTRL IF_VOL_CTRL IF_RTA_CTRL IF_DACRX_CTRL IF_RTA_CTRL IF_RTA_CTRL IF_MIC_CTRL IF_CLK_CTRL IF_DEMOD_CTRL IF_LOCK_CTRL IF_UNSWB+_CTRL IF_LVZIF_SEL_CTRL IF_SWB+_CTRL IF_SPP_CTRL IF_RTA0_CTRL IF_INT_SPN_CTRL IF_INT_MIC_CTRL IF_V_.V_CTRL IF_SPN_CTRL IF_RESET_CTRL IF_Vdda_CTRL C R0 Vddd Vdda PTT RDY RX_AUD_RTN SWB+ TX_AUD_RTN TX_AUD_SND URX_SND Vddd CLK DATA FLAT_RX_SND FLAT_TX_RTN KEYPAD_COL KEYPAD_ROW KEY_INT LCD_SEL LEDBL MISO OPT_ENA PE PG0 PI PJ ON PG0 PI PJ PE FLAT_TX_RTN KEY_INT PTT LEDBL DATA MISO CLK LCD_SEL SWB+ Vddd FLAT_RX_SND TX_AUD_SND OPT_ENA RX_AUD_RTN TX_AUD_RTN RDY KEYPAD_ROW URX_SND KEYPAD_COL Interface D7 FLASH_EN FLASH_OE RAM_CS R_W Vddd XA8 A7 A A A A5 A A7 A8 A9 D0 D D D D D5 D A0 A A0 A A A A A5 A Memory FLASH_OE RAM_CS FLASH_EN R_W Vddd XA8 RTA R_W SB SB SCI SQ_DET SWB+ SYN UNSWB+ VOL VOX Vddd XA8 MISO OFF_BATT_DATA_OUT OPT_ENA PE PG0 PI PJ PTT PTT_MIC RAM_CS RDY RESET RSSI RTA0 RTA RTA D7 DATA EE_CS F00 FLASH_EN FLASH_OE FLAT_SW HSIO KEYPAD_COL KEYPAD_ROW KEY_INT LCD_SEL LOCK LSIO LVZIF_SEL MECH_SWB+ A A7 A8 A9 BATT_DATA_IN BATT_PULL_UP CHACT CLK CSX D0 D D D D D5 D A0 A A0 A A A A A5 A A7 A A A A5 Micro_P LVZIF_SEL BATT_PULL_UP LCD_SEL MISO SWB+ RESET UNSWB+ CLK CSX DATA KEY_INT PTT LOCK PE PG0 PI PJ OPT_ENA RDY FLAT_SW RTA RTA0 RTA SB RTA SB OFF_BATT_DATA_OUT VOL MECH_SWB+ KEYPAD_COL KEYPAD_ROW RSSI SCI SYN TX_AUD_RTN TX_AUD_SND UNSWB+ URX_SND VOX Vdda Vddd FLAT_TX_RTN GREEN_LED HSIO LEDBL LSIO MECH_SWB+ MIC_LINE MISO MODIN OFF_BATT_DATA_OUT RED_LED RESET RSSI RX_AUD_RTN SQ_DET SWB+ AUDIO AUDIO_PA_ENA BATT_CODE BATT_DATA_IN BATT_PULL_UP CHACT CLK CSX DACRX DATA DEMOD EE_CS EXT_SPKR_SEL F00 FLAT_RX_SND FLAT_SW.8MHz V_.V 5V Vddd FLAT_SW BATT_PULL_UP RSSI BATT_CODE V_.V GREEN_LED OFF_BATT_DATA_OUT RED_LED TX_AUD_RTN MECH_SWB+ LEDBL URX_SND MODIN FLAT_TX_RTN RX_AUD_RTN TX_AUD_SND.8MHz DACRX DEMOD ASFIC TP0 5V Vddd Vdda FLAT_RX_SND Vdda Vddd 5V AUDIO AUDIO_PA_ENA INT_MIC INT_SPN MIC MIC_LINE PTT_MIC SPN SPP SWB+ UNSWB+ INT_SPN INT_MIC MIC SPN SPP Audio_PA SH0 SHIELD SH00 SHIELD SH0 SHIELD SH0 SHIELD Memory Shield On/Off Shield ASFIC/Audio PA Shield Microprocessor Shield ZMY0097-A Complete Controller Schematic Diagram

68 7-0.uF C8 7 5 U07 X50_.7V MISO 8 WP CLK CS HOLD SI SO VCC VSS K x 8 BIT EEPROM 00pF C7 R9 0K EE_CS 5V R 0 7K R00 C 0.uF C87 0.uF C Vdda.0uF C0 SQDET GNDSYN HSIO LCAP LSIO GCB0 GCB GCB CLK CSX DATA CHACT VOX UIO VDDA VDDDAC PLCAP SQIN GNDA DACG DACR DACU DISC AGCCAP U0 09Z VDDSYN TXRTN VDDCP VDDD NC PLCAP SYN GNDD GNDD0 F00 GCB CLK8 VDDRC TXSND URXOUT MICINT MOD GNDRC MICEXT GCB GCB5 AUDIO AUXRX AUXTX TX_AUD_SND MODIN AUDIO FLAT_TX_RTN LEDBL Q05 C0 0.uF C0 0uF Q00 75K R0 UNSWB+ 0K R7 BATT_CODE C 0.uF SYN F00 TX_AUD_RTN.8MHz RED_LED C9 DATA CLK CSX CHACT SQ_DET LSIO HSIO EXT_SPKR_SEL AUDIO_PA_ENA GREEN_LED Vddd BATT_DATA_IN OFF_BATT_DATA_OUT R7 K OUTPUT SHUTDOWN SENSE VTAP ERROR FEEDBACK GND INPUT LP95ACMM-. U C00.0uF V_.V R0 0 R05 SWB+ Vddd MIC_LINE TP0 C0 0.uF 0 R0 0.uF C0 TP0 C08 00pF 0.uF C09 0 R75 Vdda RESET C 0.uF C 0.uF DEMOD K R9 C79 0K 0.uF R5 0.uF C07 R5 K Vdda URX_SND RX_AUD_RTN VOX DACRx FLAT_RX_SND C0 0.uF.0uF C5.7uF C5 0.uF C C5.0uF FLAT_SW R 00K 5 Q- R98 00K R9 R9 0 R99 0K 5 Q9- C 0.uF R 00K Q9- RSSI BATT_PULL_UP R 0K K K K CR A A A 5 CR0 5K R5 R55 0 R5 Q0 R8 0K R5 00K 0K R C80 0uF R5 R7 00K MECH_SWB+.8V.8V 7.5V 0V.9V ZMY0099-D Controller ASFIC/ON_OFF Schematic Diagram

69 7- PH_PW PH_PW PH_PW PH_CSIO PH5_CSGP PH_CSGP PH7_CSPROG PG_XA PG_XA5 PG_XA PG_XA7 PG5_XA8 PG_AS PH0_PW PG0_XA PC0_DATA0 PC_DATA PC_DATA PC_DATA PC_DATA PC5_DATA5 PC_DATA PC7_DATA7 VSSR VSS VSSL PI PI PI PI PI5 PI PI7 PI0 PF_ADDR PF_ADDR PF_ADDR PF5_ADDR5 PF_ADDR PF7_ADDR7 PFO_ADDR0 PF_ADDR PB_ADDR9 PB_ADDR0 PB_ADDR PB_ADDR PB5_ADDR PB_ADDR PB7_ADDR5 PBO_ADDR8 AVSS XIRQ PJ_CSGP PJ PJ PJ PJ5 PJ PJ7 RESET PJ0_CSGP PG7_R_W PE_AN PE_AN PE_AN PE_AN PE5_AN5 PE_AN PE7_AN7 PE0_AN0 ECLK IRQ MODA_LIR MODB_VSTBY XFC XTAL VDD VDDL VDDR VDDSYN VRH VRL PD0_RXD PD_TXD PD_MISO PD_MOSI PD_SCK PD5_SS PD_LVIN PA0_IC PA_IC PA_IC PA_IC_OC5_OC PA_OC_OC PA5_OC_OC PA_OC_OC PA7_PA_OC AVDD EXTAL LVOUT MC8HCFL0 U VST CSGP CSGP C 00pF 00pF C9 C5 00pF C 00pF R 0K 00pF C5 C9 KEY_INT RESET R_W RTA0 RTA RTA SB SB PJ OFF_BATT_DATA_OUT RTA PE VOL RSSI VOX KEYPAD_COL KEYPAD_ROW PTT_MIC OPT_ENA LOCK PI PTT A A A A A7 A A5 A A A A A0 A9 A8 A7 A A5 A0 D7 D0 D D D D D5 D LVZIF_SEL LCD_SEL BATT_PULL_UP RAM_CS FLASH_EN XA8 BATT_DATA_IN CLK CSX EE_CS PG0 90nH L0 90nH L R7 HSIO DATA FLASH_OE SYN RDY LSIO SQ_DET CHACT MISO R8 0 TP0 TEST_POINT SCI F00 Vddd R57 0K Vddd Vddd LOW BATT 9K R5 80K R.0uF C.0uF C 00pF C9 TP5 TEST_POINT Vddd Mech_SWB+ RT00.0K 5K R UNSWB+ SWB+ 5 CR R 00.7K 7K 7K 0K Q7 TEST_POINT TP05 BOOT_CTRL.7K R9 5 C5 0.uF.7K R0 0.uF C VSS VIN VOUT ILC70CM- U0.V UNSWB+ Vddd FLAT_SW Vddd Q8 7K 7K 8K CR.7K.8V.90V.0V.0V ZMY0000-B Controller Micro Processor Schematic Diagram

70 A A0 A9 A8 A7 A A5 A A A A A0 A A7 A A5 A A A9 A7 A A A A5 A A7 A8 A A0 A A A A A5 A A0 D7 NC D0 D D D D D5 D FLASH ROM GND XA8 D0 D D D D D5 D D EN_CE EN_OE EN_WE VCC FLASH_EN U0 AT9BV R08 XA8 C9 0.uF 00K R0 FLASH_OE. R8 C 0uF VSS WE OE CS 7 0 D0 D D D D D5 D D7 D D D D5 D D7 D8 D RAM A A5 A A7 A8 A9 A A0 A A A A A A A0 VDD 8 U05 SRMB A0 A A A A A5 A A7 A8 A9 A0 A A A A RAM_CS C5 0.uF 00pF C Vddd R78 0K Vddd ZMY000-O Controller Memory Schematic Diagram

71 7-5 UNSWB+ INT_SPN INT_MIC C75 0uF J0 R7 0 C89 J0- J0- J0- GND INT_MIC INT_SPN R 70K(UHF),7K(VHF) U0 TDA857 0 C 0.uF C70 00pF(UHF),(VHF) C7 00pF C7 00pF J0- SPP AUDIO C7 0.uF Vddd R7 K(UHF),.K(VHF) R7 0K Q INPOS 7 INNEG 5 INPOS INNEG SELECT MODE 5 SVR GND VCC 0 GND VCC OUTPOS 8 OUTNEG 8 OUTPOS OUTNEG NC NC 7 NC 9 NC NC5 9 SWB+ C8 C88 MIC_LINE SPP SPN C85 00pF R5 K C8 00pF C8 00pF Speaker/Mic Connector C7 70pF L00 90nH MIC C7 0uF R7 5.K C50 Vdda R8 0 R 7K(UHF),80K(VHF) Vddd Q0 5V R Q0 R95 00K PTT_MIC R9 00K Q AUDIO_PA_ENA C0.7uF R9 00K ZMY000-B Controller Audio Power Amplifier Schematic Diagram

72 7- R8 K C 00pF C58 00pF 00pF C59 0.uF C7 0.uF C8 C8 0.uF 00pF C E00 URX_SND PG0 PI PJ PE TX_AUD_SND KEY_INT MISO RX_AUD_RTN FLAT_RX_SND FLAT_TX_RTN OPT_ENA TX_AUD_RTN DATA CLK SWB+ KEYPAD_ROW LCD_SEL LEDBL Vddd RDY PTT KEYPAD_COL J00- J00-7 J00-0 J00- J00-0 J00- J00- J00- J00-7 J00- J00- J00-9 J00-0 J00-9 J00- J00- J00-5 J00-5 J00-8 J00- J00-8 J00- J00- J00-5 J00-0 J00-5 J00-9 J00-7 J00-9 J00- J00-8 J00-8 J00- J00- J00- J00-7 J00- J00- J00- J00- J00 0-Pin Connector ZMY000-O Controller Interface Schematic Diagram

73 8- Section 8 KEYPAD BOARD INFORMATION.0 Theory of Operation Keypad U0 is a comparator that will compare the voltage when any one of the keypad row or keypad column keys is being pressed. Therefore when a key is being pressed, it will send a message to the microprocessor through the output (KEY_INT) telling it that a key has been pressed. The microprocessor will then sample the Analog to Digital voltages at the keypad row and keypad column and map it with the table so that the key being pressed can be identified. 9 pin connector Data 0 pin connector Key_Int Comparator Keypad Row Keypad Column Keypad Button Figure 8- Keypad Block Diagram.0 Troubleshooting Chart Press Keypad Tone Yes No Disconnect and reconnect 0-pin flex End Figure 8- Keypad Board Troubleshooting Chart

74 8- Parts List (Keypad).0 Parts List (Keypad) Circuit Ref Motorola Part No. Description C0 70F5 00pF C0 7E0 0.uF C07 70F5 00pF C09 70F5 00pF C0 70F5 00pF C 70F5 00pF C 98D08 0uF C 70F5 00pF C 70F5 00pF C5 70F5 00pF C 70F5 00pF J Z0 pin connector J Z0 pin connector R8 0007E90 5K R9 0007E90 5K R 0057P5 K R 00079J7 K R 00079J7 K R 0057G9 0K R7 0057P5 K R J7 K R J7 K R0 0057G9 0K R 0007E90 5K R5 0057B 50K R 0057B Meg U0 50J9 LMC7 Comparator 885Z0 PC Board

75 Keypad Board And Schematic Diagram 8-.0 Keypad Board And Schematic Diagram M05 TP7 M0 M M M0 M08 TP8 TP9 R8 R9 R0 R R C0 M0 M M R9 J00 R7 C09 R C0 9 U0 TP R8 C TP5 C07 R R5 C M M M5 TP C0 M M7 M8 R R C M9 M0 M J0 9 0 C C5 C GP88S00-A ZMY00-A Top View Bottom View Keypad Board Top and Bottom View (PCB No. 885Z0)

76 8- Keypad Board And Schematic Diagram J0- J0-5 J0- J0- J0- J0-9 J0-0 J0-7 J0-8 J0-5 J0- J0- J0- J0- J0-9 J0-0 J0-7 J0-8 J0-5 J0- J0- J0- J0- J0-0 J0- J0-8 J0-9 J0- J0-7 J0- J0- J0-0 J0-5 J0- J0- J0- J0-8 J0-9 J0- J0-7 RDY OPT_ENA TX_AUD_SND FLAT_RX_SND RX_AUD_RTN TX_AUD_RTN URX_SND FLAT_TX_RTN Vddd SWB+ KEYPAD_ROW KEYPAD_COL KEY_INT PTT MISO LEDBL DATA CLK LCD_SEL J0- J0- J0- J0- J0 -Pin Connector J J00- GND 9 J00-9 J J00- J J00- J00- J00- J00- J CLK DATA Vddd SWB+ LCD_SEL LEDBL J00 -Pin Connector Vddd C0 0.uF Vddd C07 00pF C5 00pF C 00pF C 00pF C 00pF KEYPAD_ROW KEYPAD_COL 00pF C0 K R9 K R7 R K R8 K R K 5K R8 5K R9 K R ROW ROW ROW R 5K 50K R5 5 U0 LMC7 MEG R 00pF C09 00pF C0 00pF C 0uF C Vddd KEY_INT COL COL Vddd COL 0K R 0K R0 COL5 ROW5 GND IN OUT OUT * SWITCH M9 COL KEYPAD_COL GND IN OUT OUT M SWITCH 7 GND IN OUT OUT SWITCH M GND IN OUT OUT M0 SWITCH IN OUT OUT M0 SWITCH GND COL5 ROW PHN OUT OUT SWITCH M05 GND IN TP8 ROW5 ROW UP OUT OUT M0 SWITCH GND IN TP7 P ROW KEYPAD_ROW COL5 M08 SWITCH GND IN OUT OUT TP9 DOWN TP IN OUT OUT SWITCH M GND GND IN OUT OUT M SWITCH 5 OUT OUT SWITCH M7 GND IN OUT M0 SWITCH GND IN OUT 8 0 SWITCH M GND IN OUT OUT M8 SWITCH GND IN OUT OUT COL ROW ROW5 9 # GND IN OUT OUT SWITCH M5 TP5 OUT M SWITCH GND IN OUT TP ROW IN OUT OUT OUT M SWITCH GND GND IN OUT SWITCH M ROW COL KEYPAD_ROW MEM P GP88S00-A Keypad Board Schematic Diagram

77 9A- Section 9A MODEL CHART AND TEST SPECIFICATIONS (0-70 MHZ).0 Model Chart Model AZHRDC9AA Item GP88s, UHF, 0-70 MHz Description GP88s 0-70 MHz W CH Description X PMUE5* GP88s Super Tanapa 0-70 MHz W X PMUE5* GP88s Tanapa 0-70 MHz W X PMLE7 GP88s B/C Kit 0-70 MHz W X PMLN GP88s Front Housing Kit X PMAE00A Antenna, 0- MHz Stubby X PMAE00A Antenna, 0-70 MHz Helical X NAE8AR Antenna, 0-70 MHz Whip X 80J GP88s User Guide x = Indicates one of each is required. * Motorola Depot Servicing only

78 9A- Specifications.0 Specifications General UHF Frequency: 0-70 MHz Channel Capacity: GP88s : Channels Power Supply: 7.5 Volts ±0% Dimensions with Standard High Capacity NiMH Battery: Weight: with Standard High Capacity NiMH Battery: with High Capacity NiCd Battery: Average Battery ( Duty Cycle) Standard High Capacity NiMH Battery: Sealing: Shock: Vibration: Dust: Humidity: 57.5mm x mm x 8mm 9 g 5 g Low Power 0 hrs High Power 8 hrs Passes rain testing per IP5 Meets MIL-STD-80- C,D & E and TIA/EIA 0 Meets MIL-STD-80- C,D & E and TIA/EIA 0 Meets MIL-STD-80- C,D & E and IP5 Meets MIL-STD-80- C,D & E and TIA/EIA 0 Transmitter RF Output 7.5V: Frequency Channel Spacing Freq. Stability (-0 C to +0 C) Spurs/Harmonics: Audio Response: (from db/oct. Pre- Emphasis, 00 to 000Hz) Audio 000 Hz, 0% Rated Max. Dev. FM Noise: Receiver Low W UHF 0-70 MHz.5/0/5 khz % High W - dbm < GHz -0 dbm > GHz +, - db <5% -0 db UHF.5kHz Frequency: 0-70MHz Sensitivity db EIA SINAD: Adjacent Channel Selectivity ETS Intermodulation ETS UHF 0/ 5kHz 0-70MHz 0.5 µv 0.5 µv -0 db -70 db -5 db -5 db Freq. Stability % % (-0 C to +0 C): Spur Rejection: -70 db -70 db Image Rejection: -70 db -70 db Audio <5% Distortion 500 mw 500 mw All specifications are subject to change without notice.

79 Transmitter 9A-.0 Transmitter PCIC Vcontrol Vcontrol Antenna Jack From VCO PA Driver PA-Final Stage Antenna Switch/ Harmonic Filter/ Matching Network. General (Refer to Figure 9-) The UHF transmitter contains five basic circuits:. power amplifier. antenna switch. harmonic filter. antenna matching network 5. power control integrated circuit (PCIC)... Power Amplifier Figure 9- Transmitter Block Diagram The power amplifier consists of two devices:. 9Z7 LDMOS driver IC (U0) and. PRF507 LDMOS PA (Q0). The 9Z7 LDMOS driver IC contains a stage amplification with a supply voltage of 7.V. This RF power amplifier is capable of supplying an output power of 0.W (pin and 7) with an input signal of mw (dbm) (pin). The current drain would typically be 0mA while operating in the frequency range of 0-70MHz. The PRF507 LDMOS PA is capable of supplying an output power of 7W with an input signal of 0.W. The current drain would typically be 00mA while operating in the frequency range of 0-70MHz. The power output can be varied by changing the biasing voltage.

80 9A- Transmitter.. Antenna Switch The antenna switch circuit consists of two PIN diodes (CR0 and CR0), a pi network (C07, L0 and C0). In the transmit mode, B+ at PCIC (U0) pin will go low and turn on Q where a B+ bias is applied to the antenna switch circuit to bias the diodes "on". The shunt diode (CR0) shorts out the receiver port, and the pi network, which operates as a quarter wave transmission line, transforms the low impedance of the shunt diode to a high impedance at the input of the harmonic filter. In the receive mode, the diodes are both off, and hence, there exists a low attenuation path between the antenna and receiver ports... Harmonic Filter The harmonic filter consists of C0, L0, C, C0, L0, C and C0. The design of the harmonic filter for UHF is that of a modified Zolotarev design. It has been optimized for efficiency of the power module. This type of filter has the advantage that it can give a greater attenuation in the stop-band for a given ripple level. The harmonic filter insertion loss is typically less than.db... Antenna Matching Network A matching network which is made up of L and C is used to match the antenna's impedance to the harmonic filter. This will optimize the performance of the transmitter and receiver into an antenna...5 Power Control Integrated Circuit (PCIC) The transmitter uses the Power Control IC (PCIC), U0 to regulate the power output of the radio. The current to the final stage of the power module is supplied through R0 (0.075 ohm), which provides a voltage proportional to the current drain. This voltage is then fedback to the Automatic Level Control (ALC) within the PCIC to regulate the output power of the transmitter. The PCIC has internal digital to analog converters (DACs) which provide the reference voltage of the control loop. The reference voltage level is programmable through the SPI line of the PCIC. There are resistors and integrators within the PCIC, and external capacitors (C, C and C5) in controlling the transmitter rising and falling time. These are necessary in reducing the power splatter into adjacent channels. CR05 and its associated components are part of the temperature cut back circuitry. It senses the printed circuit board temperature around the transmitter circuits and output a DC voltage to the PCIC. If the DC voltage produced exceeds the set threshold in the PCIC, the transmitter output power will be reduced so as to reduce the transmitter temperature.

81 Receiver 9A-5.0 Receiver Antenna RF Jack Pin Diode Antenna Switch Varactor Tuned Filter RF Amp Varactor Tuned Filter Mixer Crystal Filter IF Amp AGC Control Voltage from ASFIC First LO from FGU Recovered Audio Squelch RSSI Demodulator U0 Synthesizer IF IC.8 MHz Reference Clock SPI Bus Second LO VCO Figure 9- UHF Receiver Block Diagram. Receiver Front-End (Refer to UHF Receiver Front End Schematic Diagram on page 9A- and UHF Harmonic Filter Schematic Diagram on page 9A-) The RF signal is received by the antenna and applied to a low-pass filter. For UHF, the filter consists of L0, L0, C0, C0, C0. The filtered RF signal is passed through the antenna switch. The antenna switch circuit consists of two PIN diodes(cr0 and CR0) and a pi network (C0, L0 and C07).The signal is then applied to a varactor tuned bandpass filter. The UHF bandpass filter comprises of L0, L0, C0, C0, C0, CR0 and CR0. The bandpass filter is tuned by applying a control voltage to the varactor diodes(cr0 and CR0) in the filter. The bandpass filter is electronically tuned by the DACRx from U0 which is controlled by the microprocessor. Depending on the carrier frequency, the DACRx will supply the tuned voltage to the varactor diodes in the filter. Wideband operation of the filter is achieved by shifting the bandpass filter across the band. The output of the bandpass filter is coupled to the RF amplifier transistor Q0 via C07. After being amplified by the RF amplifier, the RF signal is further filtered by a second varactor tuned bandpass filter, consisting of L0, L07, C, C7, CR0 and CR05. Both the pre and post-rf amplifier varactor tuned filters have similar responses. The db bandwidth of the filter is about 50 MHz. This enables the filters to be electronically controlled by using a single control voltage which is DACRx.

82 9A- Receiver The output of the post-rf amplifier filter which is connected to the passive double balanced mixer consists of T0, T0 and CR0. Matching of the filter to the mixer is provided by C8. After mixing with the first LO signal from the voltage controlled oscillator (VCO) using low side injection, the RF signal is down-converted to the 5. MHz IF signal. The IF signal coming out of the mixer is transfered to the crystal filter (FL0) through a resistor pad and a diplexer (C and L0). Matching to the input of the crystal filter is provided by C and L. The crystal filter provides the necessary selectivity and intermodulation protection.. Receiver Back-End (Refer to UHF Receiver Back End Schematic Diagram on page 9A-7) The output of crystal filter FL0 is matched to the input of IF amplifier transistor Q0 by components R5 and C5. Voltage supply to the IF amplifier is taken from the receive 5 volts (R5). The IF amplifer provides a gain of about 7dB. The amplified IF signal is then coupled into U0(pin ) via C0, C8 and L0 which provides the matching for the IF amplifier and U0. The IF signal applied to pin of U0 is amplified, down-converted, filtered, and demodulated, to produce the recovered audio at pin 7 of U0. This IF IC is electronically programmable, and the amount of filtering (which is dependent on the radio channel spacing) is controlled by the microprocessor. Additional filtering, once externally provided by the conventional ceramic filters, is replaced by internal filters in the IF module (U0). The IF IC uses a type of direct conversion process, whereby the externally generated second LO frequency is divided by two in U0 so that it is very close to the first IF frequency. The IF IC (U0) synthesizes the second LO and phase-locks the VCO to track the first IF frequency. The second LO is designed to oscillate at twice the first IF frequency because of the divide-by-two function in the IF IC. In the absence of an IF signal, the VCO will search for a frequency, or its frequency will vary close to twice the IF frequency. When an IF signal is received, the VCO will lock onto the IF signal. The second LO/VCO is a Colpitts oscillator built around transistor Q0. The VCO has a varactor diode, CR0, to adjust the VCO frequency. The control signal for the varactor is derived from a loop filter consisting of C, C, C, R0 and R. The IF IC (U0) also performs several other functions. It provides a received signal-strength indicator (RSSI) and a squelch output. The RSSI is a dc voltage monitored by the microprocessor, and used as a peak indicator during the bench tuning of the receiver front-end varactor filter. The RSSI voltage is also used to control the automatic gain control (AGC) circuit at the front-end. The demodulated signal on pin 7 of U0 is also used for squelch control. The signal is routed to U0 (ASFIC) where squelch signal shaping and detection takes place. The demodulated audio signal is also routed to U0 for processing before going to the audio amplifier for amplification.

83 Receiver 9A-7. Automatic Gain Control Circuit (Refer to UHF Receiver Front End Schematic Diagram on page 9A-) The front end automatic gain control circuit is to provide automatic gain reduction of the front end RF amplifier via feedback. This action is necessary to prevent overloading of backend circuits. This is achieved by drawing some of the output power from the RF amplifier s output. At high radio frequencies, capacitor C provides the low impedance path to ground for this purpose. CR08 is a PIN diode used for switching the path on or off. A certain amount of forward biasing current is needed to turn the PIN diode on. Transistors Q5 provides this current where upon saturation, current will flow via R7, PIN diode, collector and emitter of Q5 and R9 before going to ground. Q5 is an NPN transistor used for switching here. Maximum current flowing through the PIN is mainly limited by the resistor R9. Radio signal strength indicator, RSSI, a voltage signal, is used to drive Q5 to saturation hence turning it on. RSSI is produced by U0 and is proportional to the gain of the RF amplifier and the input RF signal power to the radio. Resistor network at the input to the base of Q5 is scaled to turn on Q5, hence activating the AGC, at certain RSSI levels. In order to turn on Q5, the voltage across the transistor s base to ground must be greater or equal to the voltage across R9, plus the base-emitter voltage (Vbe) present at Q5. The resistor network with thermistor RT00 is capable of providing temperature compensation to the AGC circuit, as RSSI generated by U0 is lower at cold temperatures compared to normal operation at room temperature. Resistor R00 and capacitor C97 form an R-C network used to dampen any transient instability while the AGC is turning on.

84 9A-8 Frequency Generation Circuitry 5.0 Frequency Generation Circuitry Vmult.8 MHz Ref. Osc. Voltage Multiplier Vmult VCP Synthesizer U0 Aux Aux MOD Out Loop Filter Dual Transistor Rx VCO Circuit TRB Tx VCO Circuit VCOBIC U Rx Out Matching Network Tx Out Attenuator Low Pass Filter To PA Driver To Mixer Modulating Signal Figure 9- Frequency Generation Unit Block Diagram The Frequency Generation Circuitry is composed of two main ICs, the Fractional-N synthesizer (U0), and the VCO/Buffer IC (U). Designed in conjunction to maximize compatibility, the two ICs provide many of the functions that normally would require additional circuitry. The synthesizer block diagram illustrates the interconnect and support circuitry used in the region. Refer to the relevant schematics for the reference designators. The synthesizer is powered by regulated 5V and.v which come from U7 and U8 respectively. The synthesizer in turn generates a superfiltered.5v which powers U. In addition to the VCO, the synthesizer must interface with the logic and ASFIC circuitry. Programming for the synthesizer is accomplished through the data, clock and chip select lines from the microprocessor. A.V dc signal from synthesizer lock detect line indicates to the microprocessor that the synthesizer is locked. Transmit modulation from the ASFIC is supplied to pin0 of U0. Internally the audio is digitized by the Fractional-N and applied to the loop divider to provide the low-port modulation. The audio runs through an internal attenuator for modulation balancing purposes before going out to the VCO.

85 Frequency Generation Circuitry 9A-9 5. Synthesizer (Refer to UHF Synthesizer Schematic Diagram on page 9A-8) The Fractional-N Synthesizer uses a.8mhz crystal (FL0) to provide a reference for the system. The LVFractN IC (U0) further divides this to.mhz,.5mhz, and.mhz as reference frequencies. Together with C0, C07, C08, R0 and CR0, they build up the reference oscillator which is capable of.5ppm stability over temperatures of -0 to 85 C. It also provides.8mhz at pin 9 of U0 to be used by ASFIC and LVZIF. The loop filter which consist of C, C, C, R, R and R provides the necessary dc steering voltage for the VCO and determines the amount of noise and spur passing through. In achieving fast locking for the synthesizer, an internal adapt charge pump provides higher current at pin 5 of U0 to put synthesizer within the lock range. The required frequency is then locked by normal mode charge pump at pin. Both the normal and adapt charge pumps get their supply from the capacitive voltage multiplier which is made up of C58, C59, C8, triple diode CR0 and level shifters U0 and U. Two.V square waves ( 80 deg out of phase) are first shifted to 5V, then along with regulated 5V, put through arrays of diodes and capacitors to build up.v at pin 7 of U0. 7 DATA (U09 PIN 00) 8 CLOCK (U09 PIN ) 9 CSX (U09 PIN ) 0 MOD IN (U0 PIN 0), 0 +5V (U7 PIN ) 5, 0,, (U8 PIN 5) REFERENCE OSCILLATOR 5 VOLTAGE MULTIPLIER 7 DATA CLK CEX MODIN V CC, DC5V V DD,.V XTAL XTAL WARP PREIN VCP VMULT 5 U5 LOW VOLTAGE FRACTIONAL-N SYNTHESIZER VMULT LOCK FREFOUT GND IOUT IADAPT MODOUT AUX AUX SFOUT 9,,, 5 8 BIAS 0 AUX BIAS 9 8 DUAL 5V TRANSIS- TORS FILTERED 5V LOCK (U09 PIN 5) FREF (U0 PIN & U0 PIN ) -POLE LOOP FILTER DUAL TRANSIS TORS R5 STEERING LINE VOLTAGE CONTROLLED OSCILLATOR LO RF INJECTION TX RF INJECTION (ST STAGE OF PA) PRESCALER IN Figure 9- Synthesizer Block Diagram

86 9A-0 Frequency Generation Circuitry 5. VCO - Voltage Controlled Oscillator (Refer to UHF Voltage Controlled Oscillator Schematic Diagram on page 9A-9) 5V Level Shifter Network AUX (U0 Pin) AUX (U0 Pin) TRB_IN Prescaler Out U0 Pin Pin 0 Pin 9 Pin Rx-SW Tx-SW Pin7 Pin TX/RX/BS Switching Network (U0 Pin8) VSF Pin Vcc-Superfilter U VCOBIC Presc LO RF INJECTION Matching Network Low Pass Filter Steer Line Voltage (VCTRL) RX Tank TX Tank RX VCO Circuit TX VCO Circuit Collector/RF in Pin RX Pin5 Pin Pin Pin5 Pin8 TX Vcc-Logic Vsens Circuit Rx Active Bias Tx Active Bias Pin Rx-I adjust RX Pin8 Pin TX Pin0 Pin Pins 9,,7 Tx-I adjust VSF (U0 Pin8) VCC Buffers TX RF Injection Attenuator VSF (U0 Pin8) Figure 9-5 VCO Block Diagram The VCOBIC (U) in conjunction with the Fractional-N synthesizer (U0) generates RF in both the receive and the transmit modes of operation. The TRB line (U pin 9) determines which oscillator and buffer will be enabled. A sample of the RF signal from the enabled oscillator is routed from U pin, through a low pass filter, to the prescaler input (U0 pin ). After frequency comparison in the synthesizer, a resultant CONTROL VOLTAGE is received at the VCO. This voltage is a DC voltage between.5v and 9.5V when the PLL is locked on frequency.

87 Frequency Generation Circuitry 9A- The VCOBIC(U) is operated at.5 V (VSF) and Fractional-N synthesizer (U0) at.v. This difference in operating voltage requires a level shifter consisting of Q0 and Q on the TRB line. The operation logic is shown in Table 9-. Table 9- Level Shifter Logic Desired Mode AUX AUX TRB Tx Low High (@.V) High (@.8V) Rx High Low Low Battery Saver Low Low Hi-Z/Float (@.5V) In the receive mode, U pin 9 is low or grounded. This activates the receive VCO by enabling the receive oscillator and the receive buffer of U. The RF signal at U pin 8 is run through a matching network. The resulting RF signal is the LO RF INJECTION and it is applied to the mixer at T0 (refer to UHF Receiver Front End Schematic Diagram on page 9A-). During the transmit condition, when PTT is depressed, five volts is applied to U pin 9. This activates the transmit VCO by enabling the transmit oscillator and the transmit buffer of U. The RF signal at U pin 0 is injected into the input of the PA module (U0 pin). This RF signal is the TX RF INJECTION. Also in transmit mode, the audio signal to be frequency modulated onto the carrier is received through the U0 pin. When a high impedance is applied to U pin 9, the VCO is operating in BATTERY SAVER mode. In this case, both the receive and transmit oscillators as well as the receive transmit and prescaler buffer are turned off.

88 9A- Notes For All Schematics and Circuit Boards.0 Notes For All Schematics and Circuit Boards * Component is frequency sensitive. Refer to the Electrical Parts List for value and usage.. Unless otherwise stated, resistances are in Ohms (k = 000), and capacitances are in picofarads (pf) or microfarads (µf).. DC voltages are measured from point indicated to chassis ground using a Motorola DC multimeter or equivalent. Transmitter measurements should be made with a. µh choke in series with the voltage probe to prevent circuit loading.. Reference Designators are assigned in the following manner: 00 Series = Transmitter 00 Series = Frequency Generation 00 Series = Receiver 00/500 Series = Controller 00 Series = Keypad Board. Interconnect Tie Point Legend: UNSWB+ = Unswitch Battery Voltage (7.5V) SWB+ = Switch Battery Voltage (7.5V) R5 = Receiver Five Volts CLK = Clock Vdda = Regulated. Volts (for analog) Vddd = Regulated. Volts (for digital) CSX = Chip Select Line (not for LVZIF) SYN = Synthesizer DACRX = Digital to Analog Voltage (For Receiver Front End Filter) VSF = Voltage Super Filtered (5 volts) VR = Voltage Regulator -LAYER CIRCUIT BOARD DETAIL VIEWING COPPER STEPS IN PROPER LAYER SEQUENCE SIDE LAYER (L) LAYER (L) LAYER (L) LAYER (L) LAYER 5 (L5) LAYER (L) INNER LAYERS SIDE

89 CR C70 C85 R99 R98 Circuit Board/Schematic Diagrams and Parts List 9A- 7.0 Circuit Board/Schematic Diagrams and Parts List J00 TP0 5 0 J0 TP05 Q7 Q TP0 Q C7 R9 TP0 C8 C8 C7 R9 RT00 TP0 TP5 C0 CR R0 Q00 C00 Q05 R7 R7 R05 R0 R0 R0 C7 C0 C0 R R8 U SH0 R9C8 L R C7 C7 C70C7 R5 C7 R CR0 C8 C80 Q0 R R7 R8 C85 C8 8 7 U05 C C5 C7C8 R9 R8 C R7 R0 SH00 7 R8 U0 R08 8 R9 R78 C9 C U07 5 C5 C9 C7 C99 C C L0 C0 C97 Q0 C5 C FL0 C57 C9 TP0 C0 C0 L0 L0 C C CR0 C C0 C8 Q0 C7 C8 L7 R8 SH C9 L C9 C5 C5 C L5 R55 R5 Q L8 C9 C9 U7 C0 L C8 C7 L L7 C5 C5 L5 C8 C89 R0 Q C0 C55 C5 C5 VR50 C5 Q50 VR C55 C57 C58 C0 L0 R08 C 8 9 C U0 C7 L R C C0 L07 C C L0 C SH0 C R7 C7 R07 R05 C5 C C9 C7 L08 R0 R0 R0 SH0 R0 R7 Q0 C09 C C08 R C75 L09 C0 TP0 C9 R8 T0 T0 C8 TP0 R09 R08 CR08 C C R0 L0 R7 C L C R C9 FL0 C5 VR5 C55 R50 C R5 SH R5 C8 VR00 R VR PB50 R RT0 Q R5 R8 R5 R8 R C97 R00 Q5 C9 C R7 R Q R0 R70 VR C59 C98 J0 VR J07 C58 L0 SH0 C0 C99C5 C50 C0 CR0 L C08 R0 C0 C0 CR0 R0 L0 C05 C50 RT00 R9 C9 C5 L5 C85 C5 C8 Q0 SH R5 R C5 C5 R R0 C R C R R55 R505 C507C50 C CR0 L C50 PB50 C5 VR0 C5 VR50 Q505 R50 R507 C5 PB50 CR50 Q50 C0 C C77 C509 C78 C50 C50 C508 C5 C5 R50 R50 SH0 ZMY000-A UHF (0-70MHz) Main Board Top Side PCB No. 8807Z0 C505

90 9A- Circuit Board/Schematic Diagrams and Parts List 5 S50 C 8 C S50 J0 J0 C0 C0 C0 C CR0 L0 L05 SH00 C0 C0 C07 C C CR0 L0 L0 E0 R9 C05 C7 C7 CR05 R0 R0 R R7 H0 C R C C C8 C0 C8 C50 C5 C5 C70 L C C C5 C7 R09 R R U0 C50 CR0 F50 SH0 C07 C09 C0 CR0 L0 L0 Q0 R0 R0 R8 R0 C0 C C C C C5 C C95 CR0 L05 L0 L0 R05 R7 SH0 C C7 C8 C80 CR05 L07 R0 R07 C9 C C7 C55 C0 C L C7 C8 C5 SH C9 C0 C C C C C57 C58 C59 C8 C90 R C C5 7 5 U0 C C8 L R R50 B50 C C7 C0 C8 L0 Q0 R R R R5 C77 C78 C79 C80 U8 C500 C5 CR50 L505 VR9 VR VR50 C0 C C C C R0 R0 R R R C0 C0 C9 C C C C9 C98 L SH0 7 5 U0 C0 C07 C08 C8 C5 CR0 R0 R8 U0 C58 C59 C9 U C5 C5 C55 CR5 L5 R5 R5 R5 0 0 U C8 C7 C7 C7 L8 Q0 R5 R0 R R R9 C95 C78 CR L R0 R R C C C C C5 C C50 CR CR L R R R SH C09 C0 C C07 C08 C C C5 C C9 C0C C C0 C C C7 C50 C5 C5 C75 C7 C79 C8 C87 Q0 R00 R R R5 R5 R9 R7 R7 R7 R75 SH0 7 5 U0 0 0 U0 C58 C59 C C7 R5 C0 L00 Q0 Q R R R8 R9 R7 R95 R9 7 5 U09 R9 R Q9 R C C C5 C9 CR Q8 R R5 R0 R C89 SH0 C5 C9 R R57 C5 R C U0 C9 C E00 L0 L C8 C88 ZMY009-A UHF (0-70MHz) Main Board Bottom Side PCB No. 8807Z0

91 Circuit Board/Schematic Diagrams and Parts List 9A-5 SB PB50 SWITCH MECH_SWB+ C50 0.7uF SWITCH S50 5 TAB 7 HIGH LOW TAB UNSWB+ F50 V CR50 VR9 0V C50 00pF C pF BATT_CODE L505 90nH VR50.8V B50 POS NEG RSSI_FIL PTT VR0.8V VR.8V C5.0uF PB50 SWITCH J07 S S S VR50 0.0V VR5 0.0V R507 0 VOL VR50.8V Vdda C505 00pF RED_LED Q50 SWB+ IMX 5 R505 0K Q505 Vdda C50 00pF R50 7K C pF GREEN_LED SB VR.8V C5.0uF C5 00pF PB50 SWITCH 5V ANT_BIAS C5 000pF MIC SPP SPN Q50 0K 7K 7K.7K C508 00pF C55 0.uF C pF C77 00pF C50 000pF R50 0K C78 00pF C50 000pF VR.8V INT_SPN INT_MIC R50 80 R50 80 RTA RTA0 CR50 RTA RTA S50 SWITCH PC0 PC PC PC 8 C0 C0 C C GND GND C5 C5 C5 C pF 00pF 00pF 00pF J0 S S S S C 700pF SCI C50 000pF C5 00pF C55 70pF C58 000pF C99 00pF C98 00pF C59 000pF VR 0V VR 0V ZMY00-A UHF Controls And Switches Schematic Diagram

92 9A- Circuit Board/Schematic Diagrams and Parts List DACRx R5 R 00K C 8pF L0 50nH R0 K R05 50 C 0.uF C5 00pF C80.0uF R08 7 R09 0 R0 IF RX_IN C0.8pF C0 0pF R0 00K CR0 L0.9nH C0.9pF R0 00K CR0 L0.9nH C08 00pF C0 pf C05 0pF CR0 C07 0.uF L0 nh R0.8K R0.K C09 00pF Q0 L0 80nH R8 0 C 00pF C0 0.uF C C0 L05 7nH C pf C 0pF R0 00K CR0 L0.9nH C.9pF R07 00K CR05 L07.9nH C7 9.pF C8 7.5pF R9 0 C8 7.5pF TP0 T0 XFMR R8.K L09.8nH T0 XFMR CR0 SH0 SHIELD RXFE Top Shield SH0 SHIELD RXFE Bottom Shield SH0 SHIELD RX Mixer Diod Shield SH0 SHIELD Mixer Shield R5 L0 90nH C95 00pF R7 K R5 R CR08 HSMP80 C Q5 R7 K C 00pF C9 R8 8K R 9K R00.K C97 uf RX_INJ RSSI C70 00pF R5 R C8 00pF R9 0 L Q0 C0 7.5pF R R0 C7 R C7 C7 00pF C9.8pF C7 R9 0 C75 00pF C78 VCOBUF R9 50 R7 K RT00.0K R8 R5 R5 Q VR00 R5.8K C9 RT0 ZMY005-B R R UHF Receiver Front End Schematic Diagram

93 Circuit Board/Schematic Diagrams and Parts List 9A-7 Vdd_FILTERED (SOURCE) L.uH R 0 0uF C8 C9 0.uF 0.uF C8 0.uF C Vdda C 0.uF 0.uF C7 C 0.uF 0.uF C5 DEMOD 00K R50 C90 00pF R K 00pF C8 Vdd_FILTERED C9.0uF C50 0pF C5 0pF.0uF C.8MHz CLK DATA LVZIF_SEL 0.uF C57 00pF C58 C59 0.uF VAG VAG_REF ROSE_VCC ROSE_VSS LIM PHASE_LOCK DEMOD_OUT CM DEMOD_HF CM CM CM TESTA IOUT MLPD_CR FREF GND GOLD_VSS CEX CLK COL DATA BROWN_VCC BRP_OFF PRE_AGC GREEN_VSS MIX_BYP MIX_IN PREAMP_OUT GREEN_VCC CP CP BLUE_VSS CP CP BLUE_VCC TESTD VPP PRE_IN RED_VCC RED_VSS RSSI_FLT RSSI_OUT EMIT EXTBS GOLD_VCC AFC BASE U0 D uF 5pF C8 C.0uF RSSI C8 0.uF R K R5 0 R C55 C7 00pF.0uF C5 C.0uF L.uH C 0.uF Vdd_FILTERED C uf C uf C0 uf uf C9 LVZIF BTM SHEILD CRYSTAL FILTER SHIELD LVZIF TOP SHEILD SH SHIELD SH SHIELD SH SHIELD BFQ7W Q0 pf C5 C5 pf 0 R55 R0 K.uH L5 R 5K 7pF C5 K R CR0 C85 5pF 00nH L.K R R 00K.0uF C C.0uF C.uF C8 5pF 0K R5 C0.0uF 80nH L0 C0 0pF C7 00pF 5.K R Q0 R5 0 R5 K.0uF C5 0K R.K R5 XTAL FL0 TBD OUT IN GND GND GND GND 5 IF C 50pF L 750nH 0pF C DB DA ZMY00-O UHF Receiver Back End Schematic Diagram

94 9A-8 Circuit Board/Schematic Diagrams and Parts List GND NC U0 TC7SET0FU VCC 5 GND NC VCC 5 U TC7SET0FU C9 0.uF C5 00pF C57 A A K K K A CR0 5 C0 00pF 000pF C9.7uF C8 C9 0.uF 0.uF C9 C98 0.uF L0.uH (SOURCE) 5V 0.7uF C9 0.uF C.uF C5 5 U7 ADP00 GND IN SD NR OUT ERR C9 0.7uF 00pF C9 L0.uH SWB+ Vdda LP980 U8 ON_OFF* VIN GND VOUT NC 5 C77 00pF.uF C78 V_.V C 0.uF R55.K C79.uF.07uF C C 0.7uF R 0 R5 0 R5 0.uF C 0 R R 50 uh L Q0 5V 00pF C0 AUX AUX LOCK C 00pF TP0 XTAL XTAL VMULT VMULT VMULT VMULT MODOUT FREFOUT AUX AUX AUX AUX TEST WARP SFOUT TEST IADAPT INDMULT IOUT LOCK ADAPTSW VCP VRO PRE_VDD PD_VDD DVDD AVDD VBPASS PVREF SFIN MODIN BIAS BIAS CEX CLK DATA REFSEL SFBASE SFCAP NC NC NC PREIN CCOMP PD_GND PRE_GND DGND AGND U0 A7 C0 00K R0 8K R0 00pF C C 00pF DATA MODIN.uF 00pF C 9nH L C 0.75pF PRESC 00pF C0 C 00pF CSX CLK VSF 000pF C0 C0 00pF.7uF C0 SH0 SHIELD SYNTHESIZER TOP SHIELD SH0 SHIELD SYNTHESIZER BOTTOM SHIELD R0 7K CR0 5J9 FL0 GND IN OUT C08.pF C07 5pF C0 0pF R8 VCTRL 70pF C8 TP0 0.uF C.uF C7 C8 0.uF 00pF C0.uH L0.8MHz MODOUT C99 00pF C59.0uF C58.0uF C5 00pF ZMY00-A UHF Synthesizer Schematic Diagram

95 Circuit Board/Schematic Diagrams and Parts List 9A-9 nh L7 90nH L8 00pF C8 0 R5.uF C7 C7 0.uF C7 C8 0.uF L7 8nH Rx_sw Tx_sw PRESC C7 TX_SWITCH VCC_BUFFERS VCC_LOGIC RX_OUT RX_SWITCH SUPER_FLTR TRB_IN TX_BASE TX_EMITTER TX_IADJ TX_OUT FLIP_IN GND_BUFFERS GND_FLAG GND_LOGIC PRESC_OUT RX_BASE RX_EMITTER RX_IADJ COLL_RFIN U 50U SHIELD SH SH SHIELD VCO TOP SHIELD VCO BOTTOM SHIELD R0 K C97.0uF Q0 AUX 5V AUX Q 00pF C89 0 R5 R5 8 00pF C55 R5 7.5K.pF L5 RESONATOR C5 C5.5pF CR5 0pF C5 C7 00pF 0 R8 0.uF C8 7.5K R5 Tx_sw 00pF C5 L5 nh CR L CR 90nH VCTRL 00pF C CR L8 90nH Q BFQ7W VSF R K R 0K.pF C5 C pf Rx_sw 7.5pF C 7.5pF C C50 7.5pF 0nH L 00pF C R 8 R 00 L RESONATOR VSF C85 00pF TX_INJ RX_INJ 7K 7K.7K 7K.7K 7K 0K 0K DD ZMY008-A UHF Voltage Controlled Oscillator Schematic Diagram

96 9A-0 Circuit Board/Schematic Diagrams and Parts List VAR VAR VAR VG VL VLIM RS RSET RX T TEMP V0 V5V5EXT F8 GND GND INT NA Q QX RFIN CEX CI CJ CL CLK CQ CQX DATA ANO BPOS U0 H99S C7.0uF 0K R GND POS VOUT LM50 CR05 0K R0 0.uF C C70 00pF 5V 00pF C0 RESET C 00pF C05 00pF Q UNSWB+ 00pF C7 00pF C R CLK DATA UNSWB+ CSX.0uF C L 90nH 7.5pF C9 5.nH L R 00K 00pF C5 C 00pF 5.pF C9 UNSWB+ C 00pF.0uF C5 C8 00pF 000pF C R09 00K R.M L5 90nH 5 RFOUT RFOUT VCNTRL VD VG VG GND GND GND NC NC NC NC RFIN G GND U0 09Z C 0.uF 00 R C7 000pF.0uF C8 90nH L 00pF C0 UNSWB+ 00pF C0 0pF C0 C 00pF 5.0nH L0.0uF C5 R08 5.K R07 C5 00pF C50.0uF 00 R0 7K R0 R 0 00 R C5 00pF C95 00pF TX_INJ TX_INJ_.nH L08.0nH L09 C8 00pF 0pF C7 0 R0 C pf 0pF C5 Q0 R0 0.uF C7 R7 00 Microstrip C L0 0pF 7.nH C pf C 7pF Microstrip Microstrip C09 00pF UNSWB+ POS HEATSINK H0 BEAD E0 C 0. 0uF R0 00pF C.7nH L07 R7 C7 00pF R7 80K 00pF C9 K R0 SH0 SHIELD PA SHIELD K TX_OUT TX_BIAS ANT_BIAS 0K 7K 7K.7K ZMY007-A UHF Transmitter Schematic Diagram

97 Circuit Board/Schematic Diagrams and Parts List 9A- ANT_BIAS RF_JACK C.7pF C pf C08 00pF L05 90nH J0 RF_JACK GND C0 00pF C0 L0 5.nH C0.8pF L0 5.nH C0 5.pF CR0 TX_OUT L 9.75nH C L0 5.nH RX_IN CR0 ANTENNA_CONTACT J0 C0 C07.9pF C0 R70 0 C pf SH00 SHIELD R0 0 ZMY00-O HF Shield UHF Harmonic Filter Schematic Diagram

98 9A- Circuit Board/Schematic Diagrams and Parts List UHF Radio Parts List Circuit Motorola Ref Part No. Description B A0 Connector, Contact Battery C0 70F5 00pF C0 Not Placed C0 70F.8pF C0 70F 5.pF C05 7N50 00pF C0 Not Placed C07 70F7.9pF C08 7N50 00pF C09 70F5 00pF C0 7N50 00pF C 70F0 pf C 8005Z 7pF C 8005Z 0pF C 7N50 00pF C5 7N 0pF C 7N8.0pF C7 Not Placed C8 7N50 00pF C9 7N50 00pF C0 7N 0pF C 7N50 00pF C 7N50 00pF C 09A8 0uF C5 7N50 00pF C 7M 0.uF C7 7L7 000pF C8 7M08 0.0uF C9 7N 7.5pF C0 7N50 00pF C 7M08 0.0uF C 7N50 00pF C 7L7 000pF C 7L9 00pF C5 7M08 0.0uF C8 7N50 00pF C 70F.7pF C 70F0 pf C 70F pf C50 7M08 0.0uF C5 7N50 00pF C5 7M08 0.0uF C0 7N50 00pF C 7M 0.uF C5 7N50 00pF C 7N50 00pF C9 7N0 5.pF C70 7N50 00pF C7 7N50 00pF Circuit Motorola Ref Part No. Description C7 70F5 00pF C7 7M08 0.0uF C7 7N50 00pF C0 7N50 00pF C0 7L7 000pF C0 09A5.7pF C0 099J0.uF C0 70F 0pF C07 7N 5.0pF C08 7N08.pF C0 7N50 00pF C 7N50 00pF C 7N50 00pF C 7N50 00pF C 7N50 00pF C7 099J0.uF C8 7M 0.uF C9 7K 0.0uF C0 7N50 00pF C 7M 0.uF C 7M 0.uF C8 09J.7uF C9 7L7 000pF C0 7N50 00pF C 7M 0.uF C 7E 0.07uF C 09A0 0.pF C 09A05 0.7pF C5 099J0.uF C8 7F7 70pF C 7N50 00pF C 7N 7.5pF C 7N 7.5pF C 70F0.0pF C5 7N.pF C 7N50 00pF C7 7N50 00pF C8 7M 0.uF C50 7N 7.5pF C5 7N50 00pF C5 7N 0pF C5 70F09.8pF C5 7N5.pF C55 7N50 00pF C57 7N50 00pF C58 7L 0.0uF C59 7L 0.0uF C0 7N50 00pF C 7N0 0.75pF C 7N50 00pF C7 7M 0.uF Circuit Motorola Ref Part No. Description C7 099J0.uF C77 7N50 00pF C78 09A09.uF C79 099J0.uF C8 7N50 00pF C85 7N50 00pF C8 7M 0.uF C89 7N50 00pF C9 8077Z0 0.0uF C9 7M 0.uF C9 7A7 0.70uF C9 7N50 00pF C95 7N50 00pF C9 7M 0.uF C97 7L 0.0uF C98 7M 0.uF C99 7N50 00pF C0 7N.8pF C0 7N 0pF C0 70L08.9pF C0 7N9 pf C05 7N 0.0pF C07 7M 0.uF C08 7N50 00pF C09 7N50 00pF C0 7M 0.uF C 7N9 pf C 7N 0pF C 7M 0.uF C5 7N50 00pF C 70L08.9pF C7 7N5 9.pF C8 7N 7.5pF C9 7N9.8pF C0 7N 7.5pF C 7N50 00pF C 7N8 8.0pF C 7N5 50pF C 7N 0.0pF C5 7L 0.0uF C 7L 0.0uF C7 7N50 00pF C8 7M 0.uF C9 7M 0.uF C0 7N 0pF C 7N50 00pF C 7M08 0.0uF C 7M 0.uF C7 7N50 00pF C8 7N0 5.0pF C9 8078Z0.0uF Circuit Motorola Ref Part No. Description C0 8078Z0.0uF C 8078Z0.0uF C 8078Z0.0uF C 7A 0.0uF C 7M 0.uF C5 7M 0.uF C 7M 0.uF C7 7M 0.uF C8 7M 0.uF C9 7E07 0.0uF C50 7L05 0pF C5 7N 0.0pF C5 7N8.0pF C5 7N.0pF C5 7N 7.0pF C55 7A 0.0uF C5 7M08 0.0uF C57 7A 0.0uF C58 7A 00pF C D 0.uF C0 7E07 0.0uF C 7F9 0NF C 7M08 0.0uF C 09A0.uF C 7L 0.0uF C70 7N50 00pF C7 7N50 00pF C75 7N50 00pF C80 7L 0.0uF C8 7N 7.5pF C8 09A59 0uF C8 7N50 00pF C8 7N 5.0pF C85 7N 5.0pF C8 7N50 00pF C90 7N50 00pF C95 7N50 00pF C97 09A05 0.7pF C00 7L 0.0uF C0 7M 0.uF C0 7M 0.uF C0 98D08 0.0uF C07 98N0 0.uF C08 7N50 00pF C09 7M 0.uF C0 98N0 0.uF C 7M 0.uF C 98N0 0.uF C 7M 0.uF C5 0970D0 0.0uF C 98N0 0.uF

99 Circuit Board/Schematic Diagrams and Parts List 9A- Circuit Motorola Ref Part No. Description C0 7L 0.0uF C 98N0 0.uF C 7M 0.uF C 7N50 00pF C 09A59 0uF C5 7M 0.uF C 7N50 00pF C7 7N50 00pF C8 7M 0.uF C9 7M 0.uF C0 98N0 0.uF C 7N50 00pF C 7L 0.0uF C 7M 0.uF C5 7M 0.uF C Not Placed C7 Not Placed C0 7G.7uF C Not Placed C 7E0 0uF C 98N0 0.uF C Not Placed C5 Not Placed C 7R 700pF, 5% C7 7M08 0.0uF C8 Not Placed C9 7N50 00pF C50 Not Placed C5 7M08 0.0uF C5 7G.7uF C5 7N50 00pF C5 7N50 00pF C58 7N50 00pF C59 7N50 00pF C 7N50 00pF C 7N50 00pF C7 98N0 0.uF C7 Not Placed C7 Not Placed C7 7L09 70pF C75 7H 0.0uF C7 98D08 0.0uF C77 7N50 00pF C78 7N50 00pF C79 98N0 0.uF C80 98D08 0.0uF C8 98N0 0.uF C8 98N0 0.uF C8 7L7 000pF C8 7L7 000pF C85 7L7 000pF Circuit Motorola Ref Part No. Description C8 7L7 000pF C87 Not Placed C88 7L7 000pF C89 7L7 000pF C9 Not Placed C9 7N50 00pF C98 7N50 00pF C99 7N50 00pF C500 7L7 000pf C50 7L7 000pF C50 09A05 0.7pF C50 7N50 00pF C50 7L7 000pF C505 7N50 00pF C50 7N50 00pF C507 7L7 000pF C508 7N50 00pF C509 7L7 000pF C5 7N50 00pF C5 7N50 00pF C5 7N50 00pF C5 7N50 00pF C55 7M 0.uF C58 7L7 000pF C59 7L7 000pF C50 7L7 000pF C5 7L 0.0uF C5 7L 0.0uF C5 7N50 00pF C5 7L7 000pF CR Z0 Pin Diode CR0 805J Pin Diode CR A5 Temperature Sense CR0 80J09 Diode Triple CR0 88C0 Varactor CR 8059Q Dual Varactor CR 88C0 Varactor CR 88C0 Varactor CR5 805J Varactor CR0 88C0 Varactor CR0 88C0 Varactor CR0 8805K0 Dual Common Anode-Cathode CR0 88C0 Varactor CR05 88C0 Varactor CR0 805J Ring Quad Diode CR08 805J Pin Diode CR0 88C0 Varactor CR 805J7 Diode Schottky CR 805J7 Diode Schottky CR 805J7 Diode Schottky Circuit Motorola Ref Part No. Description CR0 88C0 Dual Diode Common Cathode CR R0 Rectifier CR G9 LED Red/Yel E0 857R0 Ferrite Bead E00 800Z0 Ferrite Bead F Z0 Fuse A FL0 805J9 Crystal.8MHz Clip FL0 805J XTAL Filter 5.MHz H0 8099Z0 Heat Spreader J0 0807S05 RF Jack Assembly J0 9808Z0 Antenna Contact J Y0 0-Pin Connector J0 8099G0 -Pin Connector J Z0 Connector (Stereo Jack.5mm) J Z0 Connector (Mono Jack.5mm) L0 059B8 5.nH, 0% L0 059B8 5.nH, 0% L0 059B8 5.nH, 0% L05 587N 90nH L A0 7.nH L G0.7nH L A0.nH L 587N5 nh L 9H09 5.nH L 587N 90nH L5 587N 90nH L 79990A0 9.75nH L0 Not Placed L0 587Q0.uH L0 587Q0.uH L0 587Q0.uH L 587P5 uh L 587V 90nH L 587V8 0nH L 059C0 Teflon Resonator L5 587V8 nh L5 059C0 Teflon Resonator L 587V9 9nH L7 587V 8nH L7 587V8 nh L8 587V 90nH L8 587V 90nH L C0.9nH L C0.9nH L0 587V nh L0 587V7 80nH L05 587V nh L C0.9nH L C0.9nH Circuit Motorola Ref Part No. Description L C0.8nH L0 587V 50nH L 587N5 750nH L 587N7.uH L5 80Z0.0uH L0 587N 80nH L 80Z0.0uH L 587N5 00nH L0 587V 90nH L00 587Q 90nH L0 587Q 90nH L 587Q 90nH L Q 90nH PB Z0 Tactile Push Button PB Z0 Tactile Push Button PB Z0 Tactile Push Button Q0 805J55 RF Power FET Q 805J50 Dual NPN/PNP Q0 805J50 Dual NPN/PNP Q 8058N NPN Q0 805J50 Dual NPN/PNP Q 805J50 Dual NPN/PNP Q0 805J NPN Q0 805J NPN Q5 880G0 NPN Q0 8058N NPN Q E8 MOSFET P-CHAN Q0 880G0 NPN Q05 805J5 Dual NPN Q0 805J5 Dual NPN Q7 805J50 Dual NPN/PNP Q8 805J50 Dual NPN/PNP Q R0 Dual NPN Q0 8058M7 SOT STR MMBT Q 880G0 NPN Q 58059R0 Dual NPN Q R0 Dual NPN Q50 805J50 Dual NPN/PNP Q G0 NPN R0 0057A 0 R Z R0 0057M R0 0057N5 7K R M0 0 R0 0057M 0 R M9 5.K R N0 00K R0 0057M 00 R 0057M 0 R 0057M 00 R0 0057N K

100 9A- Circuit Board/Schematic Diagrams and Parts List Circuit Ref Motorola Part No. R0 0057M98 0K R 0057N 8K R 0057N 70K R 0057N5.M R 0057M57 00 R A 0 R7 0057N K R7 0057A 00 R7 0057N9 80K R0 0057N 8K R0 0057N 00K R0 0057N5 7K R 0057M5 0 R 0057M9 0 R 0057M8 50 R 0057M 8 R 0057M57 00 R 0057M98 0K R 0057N0 K R5 0057M59 0 R8 0057M7 0 R5 0057M 8 R5 0057M 0 R5 0057M95 7.5K R5 0057M95.8K R M89.K R5 0057M7 0 R0 0057M7 K R8 Not Placed R M8.K R0 0057N 00K R0 0057N 00K R0 0057M89 K R0 0057N0 K R M7 0 R0 0057N 00K R N 00K R M 7 R M0 0 R0 0057M0 70 R 0057N0 0K R 0057M9 5.K R 0057M 0 R 0057M85 K R5 0057N0 K R 0057A9 9K R7 0057M7 K R8 0057A79 8K R9 0057A9 50 R0 0057M7 K R 0057M8.K Description Circuit Ref Motorola Part No. R 0057N0 00K R 0057M8 K R5 0057M9.8K R7 0057N K R8 0057M0 0 R9 0057M0 0 R9 0057M0 0 R0 0057M9.8K R 0057N 00K R 0057M 0 R 0057N0 K R5 0057M98 0K R 0057N7 5K R7 0057M7 K R8 0057M87.K R9 0057C0 0 R N 00K R5 0057C0 0 R5 0057M8.K R M0 0 R N5 7K R0 0057M0 0 R M0 0 R0 0057N0 75K R0 0057N 00K R 0057M98 0K R 0057M0 0 R 0057V 80K R5 0057V 9K R 0057N 9K R8 0057M0 0 R9 0057M7 0 R 0057N9 70K R5 0057N0 0K R7 0057M98 0K R8 0057M0. R9 0057M98 0K R 0057N 5K R Not Placed R5 0057M8 K R 0057N5 7K R8 0057M0 0 R5 0057N08 K R 0057N 0K R7 0057N5.5M R8 0057N 70K R9 0057N08 K R M98 0K R0 0057M90.7K R 0057N 00K R 0057N 00K Description Circuit Motorola Ref Part No. Description R 0057M 00 R7 0057M9 5.K R7 0057N K R7 0057M 0 R M0 0 R7 0057N08 K R M98 0K R8 0057N08 K R9 0057M0 0 R9 0057M0 0 R N 00K R9 0057N 00K R N 00K R M98 0K R M70 80 R M5 80 R M98 0K R N5 7K R M0 0 RT Z0 Thermistor_K RT Z0 Thermistor_K S Z0 Channel Switch S Z0 Volume Switch SH Z0 Shield, Harmonic Filter SH0 8050Z0 Shield, PA SH0 805Z0 Synthesizer Top Shield SH0 805Z0 Synthesizer Bottom Shield SH 805Z0 Shield, VCO Top SH 805Z0 Shield, VCO Bottom/LVZIF SH0 8055Z0 RX Pre Filter Shield SH Z0 RX Post Filter/RX AMP SH Z0 Shield, Mixer SH0 80Z0 Shield, Mixer Diode SH 80508Z0 Shield, LVZIF ND LO SH 805Z0 ZIF Shield SH 8055Z0 Shield, Crystal Filter SH Z0 Controller Memory Shield SH0 8050Z0 On/Off Controller Shield SH0 8055Z0 Microprocessor Controlled Shield SH0 805Z0 ASFIC CMP/Audio PA Controller Shield T0 5805Z0 XFMR Coil T0 5805Z0 XFMR Coil U Z7 LDMOS Driver UHF IC U B0 Power Control IC U0 5859A7 LVFRACN U0 50J Inverter U 50J Inverter U U5 VCO Buffer U X05 Regulator Linear Circuit Motorola Ref Part No. Description U8 50J58.V Regulator U0 509D8 LVZIF. U00 50J0.V Regulator U0 5859A5 ASFIC CMP U05 Not Placed U0 *50J59 Flash ROM 8K x 8 U07 *50J K x 8 EEPROM U09 50J5 UP HCFLO U0 50J57 Regulator.V U0 50J Audio PA VR 8055W08 5.V Zener VR 8055W08 5.V Zener VR 805J5 Zener.8V VR9 8800L5 0V Zener VR0 805J5 Zener.8V VR 805J5 Zener.8V VR 805J5 Zener.8V VR 805J5 Zener.8V VR 805J5 Zener.8V VR5 805J5 Zener_0V VR 805J5 Zener_0V VR7 805J5 Zener_0V VR8 805J5 Zener_0V VR9 805J5 Zener_0V VR50 805J5 Zener_0V VR50 880A8.8V Zener VR50 805J5 Zener.8V 75807Z0 Pad (Flexible Circuit) 8807Z0 UHF B PC Board * Motorola Depot Servicing only

101 Circuit Board/Schematic Diagrams and Parts List 9A Circuit Board/Schematic Diagrams and Parts List ZMY000 -B TP0 0 J00 U C C5 C R8 R7 R0 U0 7 C7 C8 C9 C R08 R9 R9 R78 R8 SH U07 C FL0 TP0 SH0 C5 C55 C57 C55 C5 C5 C58 C C55 Q50 R50 VR VR50 VR5 FL0 C C L C0 C9 C5 C9 L0 U7 C0 L C0 C C C C C0 C5 C57 C0 C99 C9 C9 C7 C8 C C8 C97 CR0 L0 L0 Q0 Q0 R5 R55 TP0 5 J0 C70 C7 C7 C8 C8 C85 CR Q7 Q Q R9 R9 R99 R98 RT00 TP0 TP05 TP0 TP5 SH0 C0 C0 C00 C7 C8 C0 C80 CR CR0 Q00 Q0 Q05 R0 R0 R0 R05 R5 R55 R5 R R7 R7 R8 R5 R0 R7 R8 R R5 U C7 C5 C85 C89 C70 C7 C8 C8 C7 C8 C7 C5 C7 C7 L8 L L7 L5 L7 L Q Q R R9 R R8 R5 R0 SH C09 C0 C C8 C9 C C C5 C0 C5 C C7 C C C C5 C0 C C7 C C7 C C9 C9 L L5 L0 L07 L08 L L0 Q0 R0 R0 R75 R05 R0 R07 R08 R0 R7 R R7 R7 R77 SH0 U0 9 8 C5 R5 R5 SH PB50 C97 R00 VR C8 C9 Q5 Q R R R R8 R9 R5 R7 R R5 R8 RT00 RT0 VR00 C5 C C C C9 C50 C5 C5 C5 C8 C85 CR0 L5 L Q0 R55 R R5 R0 R R R SH C75 C0 C9 L09 R8 T0 TP0 TP0 SH0 C8 C L0 R09 R08 R0 T0 C C9 C CR08 R R7 R C08 C0 C05 C0 C0 C0 CR0 CR0 L0 L0 R0 R0 SH0 C08 C5 C98 C99 C58 C59 C50 Q R0 R70 VR VR 5 7 J07 C0 C77 C78 C508 C5 C5 C50 C50 C509 C CR0 L C505 C50 C5 PB50 PB50 VR0 VR50 C5 C5 CR50 Q50 R50 R50 C50 C507 Q505 R50 R507 R505 UHF (0-70MHz) Main Board Top Side PCB No. 8807Z0

102 9A- Circuit Board/Schematic Diagrams and Parts List 5 S50 C 8 C S50 J0 J0 C0 C0 C07 C0 C0 C0 C C C CR0 CR0 L0 L0 L0 L05 SH00 C7 C C7 CR05 H0 R R7 C09 C5 C C95 C C07 C0 C C8 C80 C0 C C C C7 CR0 CR05 CR0 L0 L0 L07 L0 L05 L0 Q0 R8 R0 R07 R0 R0 R7 R05 R0 SH0 C7 C8 C90 C9 C C C5 C C7 C8 C C5 C9 C0 C C C C57 C0 C55 C58 C59 C C8 L L R R50 R SH 5 7 U0 B50 C7 C0 C C8 L0 Q0 R R5 R R C77 C79 C5 C78 C80 CR50 L505 U8 VR VR50 VR9 C500 C50 CR0 F50 SH0 C0 C8 C5 C70 C C C8 C50 C5 E0 L R0 R9 C05 C7 C C5 C R09 R0 R R R U0 C0 C C8 C C C C9 C98 C0 C0 C0 C07 C08 C9 C C C58 C59 C C5 C9 CR0 L R0 R8 R0 R0 RR R SH0 5 7 U0 U0 U C C9 C5 C89 C CR Q8 R R R5 R0 5 U0 Q9 C R R R9 U09 7 C5 C5 C9 L R R57 R E00 L0 C9 C C8 C88 C C C55 C8 C95 C7 C5 C C C50 C C5 C5 C7 C7 C78 CR CR CR CR5 L L8 L L5 Q0 R9 R0 R R0 R R R R5 R R R5 R5 R5 R SH U 0 0 C08 C87 C09 C C C C50 C5 C0 C9 C07 C0 C C C C0 C C7 C79 C8 C7 C5 C C5 C75 Q0 R00 R7 R R75 R7 R5 R R5 R9 R7 SH0 5 7 U0 U0 0 0 C58 C59 C C0 C7 L00 Q Q0 R R8 R7 R9 R95 R9 R5 R ZMY009 -B UHF (0-70MHz) Main Board Bottom Side PCB No. 8807Z0

103 Circuit Board/Schematic Diagrams and Parts List 9A-7 MECH_SWB+ C50 0.7uF 7 TAB S50 LOW HIGH TAB mgc_comps 5 CR50 UNSWB+ Vdda R507 0 V F50 A C pF C50 00pF 0V VR9 BATT_CODE RSSI_FIL NEG POS B50.8V L505 90nH VR50 00pF C505 VR50.8V VOL RED_LED 5 IMX SWB+ Q50 Q505 R505 0K R50 7K C507 00pF C50 000pF GREEN_LED Vdda 80 R50 80 R50 CR50 RTA RTA RTA0 RTA C5 00pF C5 00pF C5 00pF C5 00pF PC0 PC PC PC SWITCH C0 C0 C C GND GND SWITCH S V SWITCH PB50 VR.8V.0uF C5 VR.8V C5.0uF PB50 SWITCH PB50 SWITCH.8V VR0 SB PTT SB J07 S S S S M M M C55 C58 00pF C57 C5 000pF 000pF 00pF ANT_BIAS C509 C508 C50 00pF C77 00pF 000pF 000pF 000pF C50 C78 00pF SCI C55 0.uF C5 000pF C5 00pF Q50 0K 7K 7K.7K 00pF C5 000pF C50 70pF C55.0uF C 00pF C98 00pF C99 000pF C58 C59 000pF 0V VR VR 0V VR50 0.0V VR5 0.0V SPN INT_SPN SPP MIC INT_MIC.8V VR R50 0K ZMY00-D UHF Controls And Switches Schematic Diagram

104 9A-8 Circuit Board/Schematic Diagrams and Parts List DACRx R5 R 00K C 8pF L0 50nH R0 K R05 50 C 0.uF C5 00pF C80.0uF R08 7 R09 0 R0 70 IF RX_IN C0.8pF C0 0pF R0 00K CR0 L0.9nH C0.9pF R0 00K CR0 L0.9nH C08 00pF C0 pf C05 0pF CR0 C07 0.uF L0 nh R0.8K R0.K C09 00pF Q0 L0 80nH R8 0 C 00pF C0 0.uF C C0 L05 nh C pf C 0pF R0 00K CR0 L0.9nH C.9pF R07 00K CR05 L07.9nH C7 9.pF C8 7.5pF R9 0 C8 7.5pF TP0 T0 XFMR R8.K L09.8nH T0 XFMR CR0 SH0 SHIELD if SH0 SHIELD if RXFE Top Shield RXFE Bottom Shield Mixer Shield SH0 SHIELD if RX Mixer Diod Shield SH0 SHIELD if R5 L0 90nH C95 00pF R7 K R5 R CR08 HSMP80 C Q5 R7 K C 00pF C9 R8 8K R 9K R00.K C97 0.7uF RX_INJ RSSI C70 00pF R5 R R9 0 C8 00pF L Q0 C0 7.5pF R R0 C7 R C7 C7 00pF C9.8pF C7 R9 0 C75 00pF C78 VCO R9 50 R7 K RT00.0K R8 8.K R5 R5 Q VR00 R5.8K C9 RT0 0.uF.0K ZMY005-E R R UHF Receiver Front End Schematic Diagram

105 Circuit Board/Schematic Diagrams and Parts List 9A-9 Vdd_FILTERED L.0uH R 0 Vdda (SOURCE) C8 0uF DEMOD C 0.uF C8 0.uF C7 0.uF C 0.uF C5 0.uF R50 00K C9 0.uF C90 00pF C 0.uF DB Vdd_FILTERED L.uH C 0.uF C7 00pF C uf C uf C0 uf C9 uf R K C5.0uF R5 C55 0.uF 5 CM CM CM CM VAG LIM 7 CP 8 CP 9 CP 0 CP GREEN_VCC MIX_BYP GREEN_VSS BLUE_VSS 5 BLUE_VCC MIX_IN 7 PREAMP_OUT 8 PRE_AGC RED_VCC RED_VSS PRE_IN RSSI_OUT RSSI_FLT 0 ROSE_VCC 9 ROSE_VSS U0 D8 8 DEMOD_HF 7 DEMOD_OUT PHASE_LOCK 5 VAG_REF EXTBS 7 AFC 8 TESTD 9 VPP 0 GOLD_VCC EMIT BASE 5 C57 0.uF MLPD_CR BRP_OFF BROWN_VCC FREF GND 0 CEX 9 CLK 8 DATA 7 TESTA IOUT 5 GOLD_VSS COL C58 00pF C59 0.uF C.0uF R K LVZIF_SEL CLK DATA.8MHz C8 00pF Vdd_FILTERED C9.0uF C50 0pF C5 0pF Q0 BFQ7W C5 pf R55 0 R K C.0uF R.K R0 K C5 pf C5 7pF C.0uF R5 0K R 5K L5.0uH R 00K C8 5pF C85 5pF CR0 L 00nH C.0uF R 0 C8 0.uF C8 5pF C.uF RSSI IF C 50pF L 750nH C 0pF FL0 XTAL TBD IN GND GND GND 5 GND OUT R5.K R5 0 C5.0uF R 0K R 5.K C7 00pF R5 K Q0 C0 0pF L0 80nH DA C.0uF C0.0uF SH SHIELD if SH SHIELD if SH SHIELD CRYSTAL FILTER SHEILD LVZIF TOP SHIELD LVZIF BOTTOM SHIELD if ZMY00-D UHF Receiver Back End Schematic Diagram

106 9A-0 Circuit Board/Schematic Diagrams and Parts List U0 TC7ST0FU NC GND VCC 5 C9 0.uF U TC7ST0FU NC GND VCC 5 C5 C57 00pF C59.0uF C58.0uF C0 00pF C5 00pF C99 00pF C9 000pF C8.7uF K K K CR0 A 5 A A C98 0.uF C9 0.uF 5V (SOURCE) C9 0.uF L0.uH C9 0.0uF C 0.uF U7 ADP00 ERR OUT NR C5.uF GND L0.uH SD IN 5 L0.uH C9 00pF Vdda C9 0.7uF SWB+ U8 LP980 GND NC ON_OFF* VOUT VIN 5 C77 00pF C78.uF V_.V C 0.uF C7.uF C8 0.uF C0 00pF C79.uF C80.uF MODOUT CLK CSX C0 00pF PRESC MODIN C 00pF VSF L 9nH DATA C 00pF C 0.75pF C 00pF C 00pF R0 8K R0 00K C0.uF PVREF VBPASS PD_VDD PRE_VDD AVDD DVDD VRO VCP XTAL XTAL 5 VMULT VMULT VMULT VMULT 7 SFCAP TEST 7 8 SFBASE TEST PREIN IOUT 8 5 REFSEL IADAPT CCOMP LOCK ADAPTSW 7 8 NC SFOUT 9 NC INDMULT WARP 5 NC DGND AGND PRE_GND PD_GND 8 CLK 9 CEX 0 MODIN 7 DATA 0 SFIN 0 BIAS U0 9 BIAS A7 9 FREFOUT MODOUT 8 AUX AUX AUX AUX AUX AUX TP0.8MHz C0 00pF C 00pF 75Z0 FL0 5V Q0 LOCK R0 7K 7K 7K 0K.7K R55.K R5 R5 0 C 0.uF C 0.uF L uh C8 70pF R 0 R 0 R 50 C 0.7uF C.07uF TP0 VCTRL ZMY00-D C0 00pF C0 000pF C0.7uF IN OUT C07 9pF GND GND CR0 C08 SH0 SHIELD SH0 SHIELD R8 C0 0pF if SYNTHESIZER TOP SHIELD if SYNTHESIZER BOTTOM SHIELD UHF Synthesizer Schematic Diagram

107 Circuit Board/Schematic Diagrams and Parts List 9A- VSF C8 00pF R5 0 C7.uF C8 0.uF C85 00pF R 00 L RESONATOR C50 7.5pF L8 90nH L7 nh C7 C7 0.uF C 00pF R 8 C 7.5pF RX_INJ TX_INJ L7 8nH PRESC C7 Rx_sw Tx_sw TX_OUT RX_OUT PRESC_OUT RX_SWITCH TX_SWITCH 8 VCC_LOGIC VCC_BUFFERS U 50U5 GND_LOGIC GND_BUFFERS GND_FLAG TX_IADJ RX_IADJ SUPER_FLTR COLL_RFIN 5 RX_BASE RX_EMITTER TX_BASE 5 TX_EMITTER 0 FLIP_IN 9 TRB_IN Q BFQ7W R K L8 90nH C5.pF R8 0 R 0K VSF Rx_sw C pf C 7.5pF CR CR CR L 90nH L 0nH C 00pF VCTRL SH SHIELD SH SHIELD 7 9 R5 7.5K Tx_sw C7 00pF C8 0.uF R5 7.5K if if Q C89 00pF C5.pF C5 0pF L5 nh DUMMY VCO TOP SHIELD 5V AUX VCO BOTTOM SHIELD Q0 DD R0 K.7K 0K 7K 7K AUX C55 00pF R5 0 R5 8 L5 RESONATOR P P P C5.8pF CR5 C5 00pF ZMY008-D C97.0uF UHF Voltage Controlled Oscillator Schematic Diagram

108 9A- Circuit Board/Schematic Diagrams and Parts List UNSWB+ E0 BEAD C 0uF R0 0. L07.7nH C 00pF C7 00pF UNSWB+ TX_OUT C09 00pF L0 7.nH Microstrip Microstrip Q0 R7 00 L08.nH R0 0 R05 0 C 00pF C0 00pF L nh C 5pF C 5pF C 0pF R7. R77. C5 C 0pF C7 0pF C8 00pF C0 0pF L0 5.0nH C0 00pF C8.0uF R08 5.K TX_INJ H0 HEATSINK POS SH0 SHIELD R0 C95 00pF R0 00 R 0 TX_INJ_ R 00 C5 00pF R07 C5 00pF C50.0uF R 75 C 0.uF 7 RFOUT RFOUT VG VG RFIN VCNTRL VD G C5.0uF U0 0C5 NC NC NC NC 8 GND GND GND 5 GND UNSWB+ CLK ANT_BIAS Q UNSWB+ if R0 7K DATA C05 00pF 0K 7K C 00pF R75 7K C9 00pF C7 00pF R0 K R7 80K R7 K C7 000pF L 5.nH C9 5.pF C5 00pF C9 7.5pF C 00pF L 90nH C.0uF FROM_RF UNSWB+ R 70K C7 00pF CSX C 00pF R.7K 7K TX_BIAS L5 90nH R09 00K C 000pF R.MEG C 00pF C5.0uF ANO RSET 0 TEMP 9 CEX RFIN VAR T RX NA CI INT RS 5 U0 0 CJ H99S- VAR 9 VL VLIM 7 VAR 8 CL 8 V5EXT 7 GND 9 F8 0 QX Q CQ 8 CQX DATA 7 5 BPOS CLK GND V0 5 VG V5 C70 00pF 5V C0 00pF RESET ZMY007-D C8 00pF C 0.uF POS VOUT CR05 LM50 R0 0K C7.0uF GND R 8K UHF Transmitter Schematic Diagram

109 Circuit Board/Schematic Diagrams and Parts List 9A- ANT_BIAS RF_JACK C.7pF C pf C08 00pF L05 90nH J0 RF_JACK C0 00pF L0 5.nH L0 5.nH CR0 TX_OUT GND C0 C0.8pF C0 5.pF L 7.0nH C.pF L0 5.nH RX_IN ANTENNA_CONTACT J0 A A CR0 K K CR0 C0 C07.9pF A K C0 SH00 SHIELD R70 0 C pf ZMY00-C if R0 0 HF SHIELD UHF Harmonic Filter Schematic Diagram

110 9A- Circuit Board/Schematic Diagrams and Parts List UHF Radio Parts List Circuit Ref Motorola Part No. Description B A0 Connector, Battery Contact C0 70F5 00pF C0 Not Placed GCAM Dummy Part Number C0 70F.8pF C0 70F 5.pF C05 7N50 00pF C0 Not Placed C07 70F5 8.pF C08 7N50 00pF C09 70F5 00pF C0 7N50 00pF C 70F 5pF C 8005Z 0pF C 7N50 00pF C5 Not Placed C 7N 0pF C8 7N50 00pF C9 7N50 00pF C0 7N 0pF C 7N50 00pF C 7N50 00pF C 09A8 0uF C5 7N50 00pF C 7M 0.uF C7 7L7 000pF C8 7M08 0.0uF C9 7N 7.5pF C0 7N50 00pF C 7M08 0.0uF C 7N50 00pF C 7L7 000pF C 7L9 00pF C5 7M08 0.0uF C8 7N50 00pF C0 Not Placed C 70F5.pF C 70F.7pF C 70F0 pf C 70F pf C50 7M08 0.0uF C5 7N50 00pF C5 7M08 0.0uF C0 7N50 00pF C 7M 0.uF C5 7N50 00pF C 7N50 00pF C9 7N0 5.pF C70 7N50 00pF C7 7N50 00pF Circuit Motorola Ref Part No. Description C7 70F5 00pF C7 7M08 0.0uF C7 7N50 00pF C0 7N50 00pF C0 7L7 000pF C0 09A5.7uF C0 099J0.uF C0 70F 0pF C07 7N0 9pF C08 Not Placed C0 7N50 00pF C 7N50 00pF C 7N50 00pF C 7N50 00pF C 7N50 00pF C7 099J0.uF C8 7M 0.uF C9 7K 0.uF C0 7N50 00pF C 7M 0.uF C 7M 0.uF C8 09J.7uF C9 7L7 000pF C0 7N50 00pF C 7M 0.uF C 7E8 0.07uF C 09A0 0.pF C 09A05 0.7uF C5 099J0.uF C8 7F7 70pF C 7N50 00pF C 7N 7.5pF C 7N 7.5pF C 70F0.0pF C5 7N.pF C 7N50 00pF C7 7N50 00pF C8 7M 0.uF C50 7N 7.5pF C5 7N50 00pF C5 7N 0pF C5 70F09.8pF C5 7N5.pF C55 7N50 00pF C5 7N50 00pF C57 7N50 00pF C58 7L 0.0uF C59 7L 0.0uF C0 7N50 00pF C 7N0 0.75pF C 7N50 00pF Circuit Ref Motorola Part No. C5 Not Placed C7 Not Placed C7 Not Placed C7 7M 0.uF C7 099J0.uF C77 7N50 00pF C78 09A09.uF C79 099J0.uF C80 09A0.uF C8 7N50 00pF C85 7N50 00pF C8 7M 0.uF C89 7N50 00pF C9 09A9 0uF C9 7M 0.uF C9 7A7 0.7uF C9 7N50 00pF C95 7N50 00pF C9 7M 0.uF C97 7L 0.0uF C98 7M 0.uF C99 7N50 00pF C0 7N.8pF C0 7N9 pf C0 70L08.9pF C0 7N9 pf C05 7N 0pF C0 Not Placed C07 7M 0.uF C08 7N50 00pF C09 7N50 00pF C0 7M 0.uF C Not Placed C 7N9 pf C 7N 0pF C 7M 0.uF C5 7N50 00pF C 70L08.9pF C7 7N5 9.pF C8 7N 7.5pF C9 7N9.8pF C0 7N 7.5pF C 7N50 00pF C 7N8 8pF C 7N5 50pF C 7N 0pF C5 7L 0.0uF C 7L 0.0uF C7 7N50 00pF C8 7M 0.uF C9 7M 0.uF Description Circuit Motorola Ref Part No. Description C0 7N 0pF C 7N50 00pF C Not Placed C 7M08 0.0uF C 7M 0.uF C7 7N50 00pF C8 7N0 5pF C9 8078Z0.0uF C0 8078Z0.0uF C 8078Z0.0uF C 8078Z0.0uF C 7A 0.uF C 7M 0.uF C5 7M 0.uF C 7M 0.uF C7 7M 0.uF C8 7M 0.uF C9 7E 0.0uF C50 7L05 0pF C5 7N 0pF C5 7N8 pf C5 7N pf C5 7N 7pF C55 7A 0.0uF C5 7M08 0.0uF C57 7A 0.uF C58 7A 00pF C D 0.uF C0 7E 0.0uF C 7F9 0nF C 7M08 0.0uF C 09A0.uF C 7L 0.0uF C70 7N50 00pF C7 Not Placed C7 Not Placed C7 Not Placed C7 7N50 00pF C75 7N50 00pF C78 Not Placed C80 7L 0.0uF C8 7N 7.5pF C8 09A59 0uF C8 7N50 00pF C8 7N 5pF C85 7N 5pF C8 7N50 00pF C90 7N50 00pF C9 Not Placed C95 7N50 00pF C9 Not Placed

111 Circuit Board/Schematic Diagrams and Parts List 9A-5 Circuit Motorola Ref Part No. Description C97 09A05 0.7uF C00 7L 0.0uF C0 7M 0.uF C0 7M 0.uF C0 98D08 0uF C07 98N0 0.uF C08 7N50 00pF C09 7M 0.uF C0 98N0 0.uF C 7M 0.uF C 98N0 0.uF C 7M 0.uF C Z0 0.0uF C 98N0 0.uF C9 Not Placed C0 7L 0.0uF C 98N0 0.uF C 7M 0.uF C 7N50 00pF C 09A59 0uF C5 7M 0.uF C 7N50 00pF C7 7N50 00pF C8 7M 0.uF C9 7M 0.uF C0 98N0 0.uF C 7N50 00pF C Not Placed C 7L 0.0uF C 7M 0.uF C5 7M 0.uF C0 7G.7uF C 7E 0.0uF C 98N0 0.uF C 7M08 0.0uF C7 98N0 0.uF C9 7N50 00pF C50 Not Placed C5 7M08 0.0uF C5 7G.7uF C5 7N50 00pF C5 7N50 00pF C55 7L09 70pF C5 7N50 00pF C58 7N50 00pF C59 7N50 00pF C 7N50 00pF C 7N50 00pF C7 98N0 0.uF C70 7N50 00pF C7 7N50 00pF Circuit Motorola Ref Part No. Description C7 7N50 00pF C7 7L09 70pF C75 7H 0uF C7 98D08 0uF C77 7N50 00pF C78 7N50 00pF C79 98N0 0.uF C80 98D08 0uF C8 98N0 0.uF C8 98N0 0.uF C8 7L7 000pF C8 7L7 000pF C85 7L7 000pF C8 Not Placed C87 Not Placed C88 Not Placed C89 Not Placed C9 Not Placed C9 7N50 00pF C98 7N50 00pF C99 7N50 00pF C500 7L7 000pF C50 7L7 000pF C50 09A05 0.7uF C50 7N50 00pF C50 7L7 000pF C505 7N50 00pF C50 7N50 00pF C507 7L7 000pF C508 7N50 00pF C509 7L7 000pF C5 7N50 00pF C5 7N50 00pF C5 7N50 00pF C5 7N50 00pF C55 7M 0.uF C58 7L7 000pF C59 7L7 000pF C50 7L7 000pF C5 7L 0.0uF C5 7L 0.0uF C5 7N50 00pF C5 7L7 000pF C55 7N50 00pF C5 7L7 000pF C57 7N50 00pF C58 7L7 000pF CR Z0 Pin Diode CR0 805J Pin Diode CR A5 Temperature Sense CR0 80J09 Triple Diode Circuit Motorola Ref Part No. Description CR0 88C0 Varactor CR 8059Q Dual Varactor CR 88C0 Varactor CR 88C0 Varactor CR5 805J Varactor CR0 88C0 Varactor CR0 88C0 Varactor CR0 8805K0 Dual Common Anode-Cathode CR0 88C0 Varactor CR05 88C0 Varactor CR0 805J Ring Quad Diode CR08 805J Pin Diode CR0 88C0 Varactor CR 805J Schottky Diode CR 805J Schottky Diode CR 805J Schottky Diode CR0 88C0 Dual Diode Common Cathode CR R0 Rectifier CR G9 LED Red/Yel E0 857R0 Ferrite Bead E00 800Z0 Ferrite Bead F Z0 A Fuse FL Z0.8MHz Crystal Oscillator FL0 805J Xtal Filter 5.Mhz H0 8099Z0 Heat Spreader J0 0985Z0 RF Jack J0 9808Z0 Antenna Contact J Y0 0-Pin Connector J0 8099G0 -Pin Connector J Z0 Connector(Stereo Jack.5MM) J Z0 Connector(Mono Jack.5MM) L0 059B8 5.nH, 0% L0 059B8 5.nH, 0% L0 059B8 5.nH, 0% L05 587N 90nH L A0 7.nH L G0.7nH L A0.nH L 587N5 nh L 9H09 5.nH L 587N 90nH L5 587N 90nH L 059B5 7.7nH L0 Not Placed L0 587Q0.uH L0 587Q0.uH L0 587Q0.uH L 587P5 uh L 587V 90nH Circuit Motorola Ref Part No. Description L 587V8 0nH L 059C0 Teflon Resonator, Rx L5 587V8 nh L5 059C0 Teflon Resonator, Tx L 587V9 9nH L7 587V 8nH L7 587V8 nh L8 587V 90nH L8 587V 90nH L C0.9nH L C0.9nH L0 587V nh L0 587V7 80nH L05 587V nh L C0.9nH L C0.9nH L C0.8nH L0 587V 50nH L 587N5 750nH L 587N7.uH L Not Placed L5 80Z0.uH L0 587N 80nH L 80Z0.uH L 587N5 00nH L0 587V 90nH L00 587Q 90nH L0 587Q 90nH L 587Q 90nH L Q 90nH PB Z0 Tactile Push Button PB Z0 Tactile Push Button PB Z0 Tactile Push Button Q0 888A09 FET Transistor Q 805J50 Dual NPN/PNP Transistor Q0 805J50 Dual NPN/PNP Transistor Q 8058N NPN Transistor Q0 805J50 Dual NPN/PNP Transistor Q 805J50 Dual NPN/PNP Transistor Q0 805J NPN Transistor Q0 805J NPN Transistor Q0 Not Placed Q5 880G0 NPN Transistor Q Not Placed Q0 8058N NPN Transistor Q E8 MOSFET P-Channel Q0 88A7 Bipolar Transistor Q05 805J5 Dual NPN Transistor Q0 805J5 Dual NPN Transistor Q7 805J50 Dual NPN/PNP Transistor Q8 805J50 Dual NPN/PNP Transistor

112 9A- Circuit Board/Schematic Diagrams and Parts List Circuit Motorola Ref Part No. Description Q R0 Dual NPN Transistor Q0 8058M7 PNP Transistor Q 880G0 NPN Transistor Q 58059R0 Dual NPN Transistor Q 880G0 NPN Transistor Q R0 Dual NPN Transistor Q G0 NPN Transistor Q50 805J50 Dual NPN/PNP Transistor R0 0057A 0 R Z0 0. R0 0057M R0 0057N5 7K R C0 0 R0 0057M 0 R07 Not Placed R M9 5.K R N0 00K R0 0057M 00 R 0057M 0 R 0057M 00 R0 0057N K R0 0057M98 0K R 0057N05 8K R 0057N 70K R Not Placed R 0057N5.M R 0057M7 75 R A 0 R7 0057N K R7 0057A 00 R7 0057N9 80K R7 0057N5 7K R7 0057B7. R B7. R0 0057N 8K R0 0057N 00K R0 0057N5 7K R 0057M5 0 R 0057M9 0 R 0057M8 50 R 0057M 8 R 0057M57 00 R 0057M98 0K R 0057N0 K R5 0057M59 0 R8 0057M7 0 R5 0057M 8 R5 0057M 0 R5 0057M95 7.5K R5 0057M95 7.5K R M89.K Circuit Ref Motorola Part No. R5 0057M7 0 R0 0057M7 K R8 Not Placed R M8.K R0 0057N 00K R0 0057N 00K R0 0057M89.K R0 0057N0 K R M7 0 R0 0057N 00K R N 00K R M 7 R M0 0 R0 0057M0 70 R 0057N0 0K R 0057M9 5.K R 0057M 0 R 0057M85 K R5 0057N0 K R 0057A9 9K R7 0057M7 K R8 0057A79 8K R9 0057A9 50 R0 0057M7 K R 0057M8.K R 0057N0 00K R 0057M8 K R5 0057M9.8K R Not Placed R7 0057N K R8 0057M0 0 R9 0057M0 0 R0 Not Placed R Not Placed R Not Placed R Not Placed R Not Placed R5 Not Placed R Not Placed R8 Not Placed R9 0057M0 0 R0 0057M9.8K R 0057N 00K R 0057M 0 R 0057N0 K R5 0057M98 0K R 0057N7 5K R7 0057M7 K R8 0057M87.K R9 0057C0 0 R N 00K Description Circuit Ref Motorola Part No. R5 0057C0 0 R5 0057M8.K R M0 0 R N5 7K R0 0057M0 0 R0 Not Placed R0 Not Placed R M0 0 R0 0057N0 75K R08 Not Placed R0 0057N 00K R 0057M98 0K R 0057M0 0 R 0057V 80K R5 0057V 9K R 0057M98 0K R8 0057M0 0 R9 0057M90.7K R 0057N9 70K R5 0057N0 0K R7 0057M98 0K R8 0057M0. R9 0057M98 0K R 0057N 5K R Not Placed R5 0057M8 K R 0057N5 7K R7 Not Placed R8 0057M0 0 R9 0057N 00K R5 0057N08 K R Not Placed R7 0057N 00K R8 0057M98 0K R9 0057N08 K R5 0057N0 5K R5 0057N 00K R5 Not Placed R55 Not Placed R5 0057M0 0 R M98 0K R0 0057M90.7K R 0057N 00K R 0057N 00K R 0057M 00 R7 0057M98 0K R7 0057N0 0K R7 0057N K R7 0057M 0 R M0 0 R7 0057N08 K Description Circuit Motorola Ref Part No. Description R M98 0K R8 0057N08 K R9 0057M0 0 R9 Not Placed R9 0057M0 0 R N 00K R9 0057N 00K R N 00K R M98 0K R M70 80 R M5 80 R M98 0K R N5 7K R M0 0 R M98 0K RT Z0 Thermistor_K RT0 Not Placed RT Z0 Thermistor_K S Z0 Channel Switch S Z0 Volume Switch SH Z0 Shield, Harmonic Filter SH0 8050Z0 Shield, PA SH0 805Z0 Shield, LVFRACN Synthesizer top SH0 805Z0 Shield, LVFRACN Synthesizer bottom SH 805Z0 Shield, VCO Top SH 805Z0 Shield, VCO Bottom SH0 8055Z0 Rx Front end top shield SH Z0 Rx Front end bottom shield SH Z0 Shield, Mixer SH0 80Z0 Shield, Mixer Diode SH 80508Z0 Shield, LVZIF nd LO SH 805Z0 LVZIF Shield SH 8055Z0 Shield, Crystal Filter SH Z0 Control Memory Shield SH0 8050Z0 On/Off Controller Shield SH0 8055Z0 Microprocessor Shield SH0 805Z0 ASFIC Cmp/Audio PA Controller Shield T0 5805Z0 ZFMR Coil T0 5805Z0 ZFMR Coil U0 5850C5 LDMOS Driver IC U B8 Power Control IC U0 5859A7 LVFRACN Synthesizer IC U0 50J Inverter U 50J Inverter U U5 VCO Buffer IC U X05 5V Regulator U8 50J58.V Regulator U0 509D8 LVZIF IC

113 Circuit Board/Schematic Diagrams and Parts List 9A-7 Circuit Motorola Ref Part No. Description U00 50J0.V Regulator U Z ASFIC_CMP U05 Not Placed U0 *50J59 Flash ROM 8K X 8 U07 *50J K X 8 EEPROM U09 50J5 Microprocessor U0 50J57.V Regulator U0 50J Audio PA VR00 Not Placed VR 805J7.8V Zener VR 8800L5 0V Zener VR 8800L5 0V Zener VR9 8800L5 0V Zener VR0 805J7.8V Zener VR 805J7.8V Zener VR 805J7.8V Zener VR50 805J7 0V Zener VR5 805J7 0V Zener VR50 880A8.8V Zener VR50 805J7.8V Zener 85777Z0 Insulator (Kapton) 8807Z0 UHF B PC Board * Motorola Depot Servicing only

114 9A-8 Circuit Board/Schematic Diagrams and Parts List 9.0 Circuit Board/Schematic Diagrams and Parts List ZMY0090-O J00 0 TP0 C5 C 7 8 U05 C R0 R8 R7 7 U0 FL0 C TP0 C0 C0 C C C C C7 C0 C8 C9 C0 C C5 C8 C5 C57 C0 C9 C9 C9 C97 C99 CR0 L0 L0 L0 L Q0 Q0 R55 R5 SH0 U7 C C7 C8 C9 R08 R8 R9 R78 R9 SH U07 C C55 C55 C5 C5 C55 C5 C57 C58 Q50 R50 VR VR50 VR5 C70 C7 C7 C8 C8 C85 5 J0 Q7 Q Q R9 R9 R98 R99 RT00 TP0 TP0 CR TP05 TP0 TP5 C0 C7 C80 C8 CR0 Q0 Q05 R R R7 R8 R5 R5 R5 R55 R5 R8 C00 C0 C0 CR Q00 R0 R0 R0 R05 R0 R7 R7 SH0 5 8 U00 C7C8 C5 C5 C7 C7 C7 C7 C85 C8 C89 C70 C7 C8 L L5 L7 L7 L8 L Q Q R R8 R5 R0 R R9 SH C C C5 FL0 L R5 R5 SH VR TP0 TP0 C9 C0 C C75 C8 L09 L0 R08 R09 R0 R8 SH0 T0 T0 PB50 C8 C9 C97 Q5 Q R00 R R R8 R9 R5 R R7 R R5 R8 RT00 RT0 VR00 C C C9 CR08 R7 R R C0 C C C C5 C9 C C C5 C C9 L07 L L R SH0 9 C5 C C7 C8 C0 C C7 C0 L08 L5 L0 R05 R0 R07 R08 8 U0 C09 C C L0 C9 Q0 R0 R0 R0 R7 R75 R7 R77 C7 R7 C50 C505 C5 PB50 PB50 VR0 C50 C507 Q505 R505 R50 R507 VR50 C0 C C77 C78 C50 C50 C508 C509 C5 C5 C5 C5 CR0 CR50 L Q50 R50 R50 VR5 VR5 J C08 C5 C98 C99 C58 C59 C50 Q R0 R70 VR VR C0 C0 C0 C0 C05 C08 CR0 CR0 L0 L0 R0 R0 SH0 C9 C50 C5 C5 C5 C5 C C C C8 C85 CR0 L5 L Q0 R0 R R R R5 R R55 SH UHF (0-70MHz) Main Board Top Side PCB No. 8807Z0

115 Circuit Board/Schematic Diagrams and Parts List 9A-9 ZMY009-O 5 S50 8 C C S50 J0 J0 C0 C0 C0 C0 C0 C07 C C C CR0 CR0 L0 L0 L0 L05 SH00 C C7 C7 CR05 H0 R0 R0 R R R7 C05 C C C8 C0 C C C5 C8 C50 C5 C5 C70 C7 E0 L R09 R R R U0 C C C C C5 C C50 C5 C5 C55 C8 C95 C7 C7 C7 C78 CR CR CR CR5 L L L5 L8 Q0 R0 R R R R R R5 R5 R5 R5 R0 R R R9 SH 0 0 U C07 C79 C8 R R5 R5 R9 R75 7 C08 C09 C0 C C C C5 C C0 C C5 C5 5 U0 C75 C50 C7 Q0 R7 SH0 0 0 U0 C9 C0 C C C87 R00 C R7 R7 C0 C58 C59 C C7 L00 Q0 Q R R5 R R8 R9 R7 R95 R9 C7 R C9 C C C7 C9 C0 C C C C C5 C C7 C8 C55 C5 C57 C58 C59 C0 C C8 C8 C90 L L R R R50 SH 7 5 U0 C0 C07 C09 C0 C C C C C5 C C7 C8 C C80 C95 CR0 CR0 CR05 L0 L0 L05 L0 L07 L0 Q0 R0 R0 R05 R0 R07 R8 R0 R7 SH0 C500 C50 CR0 F50 SH0 B50 C C7 C0 C8 L0 Q0 R R R R5 C77 C78 C79 C80 C5 CR50 L505 U8 VR9 VR VR50 C0 C0 C0 C0 C07 C08 C8 C9 C C C C C C58 C59 C C C5 C9 C9 C98 CR0 L R0 R0 R0 R R R R8 SH0 7 5 U0 5 U0 5 U C C C C5 C9 C5 C5 C C8 C88 C89 C9 C9 CR E00 L0 L Q8 Q9 R R R5 R9 R R57 R0 R R R SH0 7 5 U09 U0 UHF (0-70MHz) Main Board Bottom Side PCB No. 8807Z0

116 9A-0 Circuit Board/Schematic Diagrams and Parts List PB50 SWITCH MECH_SWB+ C50 0.7uF R507 0 SWITCH mgc_comps S50 HIGH 5 LOW TAB 7 TAB UNSWB+ CR50 VR9 0V C50 00pF C pF F50 V A BATT_CODE L505 90nH VR50.8V B50 POS NEG RSSI_FIL SB PTT VR0.8V VR.8V C5.0uF A A A A PB50 SWITCH PB50 SWITCH B B B B VR50 0.0V VR5 0.0V SPP SPN VOL VR50.8V Vdda C505 00pF SWB+ Vdda R505 0K C50 00pF C pF SB VR.8V C5.0uF A A B B J07 M M M S S C508 00pF C pF C77 00pF SCI C50 000pF C78 00pF C50 000pF INT_SPN switch RED_LED IMX 5 Q505 R50 7K GREEN_LED S S C.0uF MIC o switch R50 80 R50 80 CR50 RTA RTA0 RTA RTA VR5.0V VR5 00pF.0V C5 00pF C5 00pF C5 00pF C5 00pF S50 SWITCH PC0 PC PC 8 PC C0C0 CC GNDGND 7 9 C50 000pF C5 00pF C55 70pF C99 00pF C58 000pF C98 00pF C59 000pF VR 0V VR 0V Q50 5V ANT_BIAS C55 0.uF C5 00pF C5 000pF ZMY009-O DUMMY C55 00pF C5 000pF C57 00pF C58 000pF R50 0K VR INT_MIC.8V UHF Controls And Switches Schematic Diagram

117 Circuit Board/Schematic Diagrams and Parts List 9A- DACRx R5 R 00K C 8pF L0 50nH R0 K R05 50 C 0.uF C5 00pF C80.0uF R08 7 R09 0 R0 70 IF RX_IN C0.8pF C0 0pF R0 00K CR0 L0.9nH C0.9pF R0 00K CR0 L0.9nH C08 00pF C0 pf C05 0pF CR0 C07 0.uF L0 nh R0.8K R0.K C09 00pF Q0 L0 80nH R8 0 C 00pF C0 0.uF C C0 L05 nh C pf C 0pF R0 00K CR0 L0.9nH C.9pF R07 00K CR05 L07.9nH C7 9.pF C8 7.5pF R9 0 C8 7.5pF TP0 T0 XFMR R8.K L09.8nH T0 XFMR CR0 SH0 SHIELD if SH0 SHIELD if RXFE Top Shield RXFE Bottom Shield Mixer Shield SH0 SHIELD if RX Mixer Diod Shield SH0 SHIELD if R5 L0 90nH C95 00pF R7 K R5 R CR08 HSMP80 C Q5 R7 K C 00pF C9 R8 8K R 9K R00.K C97 0.7uF RX_INJ RSSI C70 00pF R5 R R9 0 C8 00pF L Q0 C0 7.5pF R R0 C7 R C7 C7 00pF C9.8pF C7 R9 0 C75 00pF C78 VCO R9 50 R7 K RT00.0K R8 8.K R5 R5 Q VR00 R5.8K C9 RT0 0.uF.0K ZMY005-E R R UHF Receiver Front End Schematic Diagram

118 9A- Circuit Board/Schematic Diagrams and Parts List Vdd_FILTERED L.0uH R 0 Vdda (SOURCE) C8 0uF DEMOD C 0.uF C8 0.uF C7 0.uF C 0.uF C5 0.uF R50 00K C9 0.uF C90 00pF C 0.uF DB Vdd_FILTERED L.uH C 0.uF C7 00pF C uf C uf C0 uf C9 uf R K C5.0uF R5 C55 0.uF 5 CM CM CM CM VAG LIM 7 CP 8 CP 9 CP 0 CP GREEN_VCC MIX_BYP GREEN_VSS BLUE_VSS 5 BLUE_VCC MIX_IN 7 PREAMP_OUT 8 PRE_AGC RED_VCC RED_VSS PRE_IN RSSI_OUT RSSI_FLT 0 ROSE_VCC 9 ROSE_VSS U0 D8 8 DEMOD_HF 7 DEMOD_OUT PHASE_LOCK 5 VAG_REF EXTBS 7 AFC 8 TESTD 9 VPP 0 GOLD_VCC EMIT BASE 5 C57 0.uF MLPD_CR BRP_OFF BROWN_VCC FREF GND 0 CEX 9 CLK 8 DATA 7 TESTA IOUT 5 GOLD_VSS COL C58 00pF C59 0.uF C.0uF R K LVZIF_SEL CLK DATA.8MHz C8 00pF Vdd_FILTERED C9.0uF C50 0pF C5 0pF Q0 BFQ7W C5 pf R55 0 R K C.0uF R.K R0 K C5 pf C5 7pF C.0uF R5 0K R 5K L5.0uH R 00K C8 5pF C85 5pF CR0 L 00nH C.0uF R 0 C8 0.uF C8 5pF C.uF RSSI IF C 50pF L 750nH C 0pF FL0 XTAL TBD IN GND GND GND 5 GND OUT R5.K R5 0 C5.0uF R 0K R 5.K C7 00pF R5 K Q0 C0 0pF L0 80nH DA C.0uF C0.0uF SH SHIELD if SH SHIELD if SH SHIELD CRYSTAL FILTER SHEILD LVZIF TOP SHIELD LVZIF BOTTOM SHIELD if ZMY00-D UHF Receiver Back End Schematic Diagram

119 Circuit Board/Schematic Diagrams and Parts List 9A- U0 TC7ST0FU NC GND VCC 5 C9 0.uF U TC7ST0FU NC GND VCC 5 C5 C57 00pF C59.0uF C58.0uF C0 00pF C5 00pF C99 00pF C9 000pF C8.7uF K K K CR0 A 5 A A C98 0.uF C9 0.uF 5V (SOURCE) C9 0.uF L0.uH C9 0.0uF C 0.uF U7 ADP00 ERR OUT NR C5.uF GND L0.uH SD IN 5 L0.uH C9 00pF Vdda C9 0.7uF SWB+ U8 LP980 GND NC ON_OFF* VOUT VIN 5 C77 00pF C78.uF V_.V C 0.uF C7.uF C8 0.uF C0 00pF C79.uF C80.uF MODOUT CLK CSX C0 00pF PRESC MODIN C 00pF VSF L 9nH DATA C 00pF C 0.75pF C 00pF C 00pF R0 8K R0 00K C0.uF PVREF VBPASS PD_VDD PRE_VDD AVDD DVDD VRO VCP XTAL XTAL 5 VMULT VMULT VMULT VMULT 7 SFCAP TEST 7 8 SFBASE TEST PREIN IOUT 8 5 REFSEL IADAPT CCOMP LOCK ADAPTSW 7 8 NC SFOUT 9 NC INDMULT WARP 5 NC DGND AGND PRE_GND PD_GND 8 CLK 9 CEX 0 MODIN 7 DATA 0 SFIN 0 BIAS U0 9 BIAS A7 9 FREFOUT MODOUT 8 AUX AUX AUX AUX AUX AUX TP0.8MHz C0 00pF C 00pF 75Z0 FL0 5V Q0 LOCK R0 7K 7K 7K 0K.7K R55.K R5 R5 0 C 0.uF C 0.uF L uh C8 70pF R 0 R 0 R 50 C 0.7uF C.07uF TP0 VCTRL ZMY00-D C0 00pF C0 000pF C0.7uF IN OUT C07 9pF GND GND CR0 C08 SH0 SHIELD SH0 SHIELD R8 C0 0pF if SYNTHESIZER TOP SHIELD if SYNTHESIZER BOTTOM SHIELD UHF Synthesizer Schematic Diagram

120 9A- Circuit Board/Schematic Diagrams and Parts List VSF C8 00pF R5 0 C7.uF C8 0.uF C85 00pF R 00 L RESONATOR C50 7.5pF L8 90nH L7 nh C7 C7 0.uF C 00pF R 8 C 7.5pF RX_INJ TX_INJ L7 8nH PRESC C7 Rx_sw Tx_sw TX_OUT RX_OUT PRESC_OUT RX_SWITCH TX_SWITCH 8 VCC_LOGIC VCC_BUFFERS U 50U5 GND_LOGIC GND_BUFFERS GND_FLAG TX_IADJ RX_IADJ SUPER_FLTR COLL_RFIN 5 RX_BASE RX_EMITTER TX_BASE 5 TX_EMITTER 0 FLIP_IN 9 TRB_IN Q BFQ7W R K L8 90nH C5.pF R8 0 R 0K VSF Rx_sw C pf C 7.5pF CR CR CR L 90nH L 0nH C 00pF VCTRL SH SHIELD SH SHIELD 7 9 R5 7.5K Tx_sw C7 00pF C8 0.uF R5 7.5K if if Q C89 00pF C5.pF C5 0pF L5 nh DUMMY VCO TOP SHIELD 5V AUX VCO BOTTOM SHIELD Q0 DD R0 K.7K 0K 7K 7K AUX C55 00pF R5 0 R5 8 L5 RESONATOR P P P C5.8pF CR5 C5 00pF ZMY008-D C97.0uF UHF Voltage Controlled Oscillator Schematic Diagram

121 Circuit Board/Schematic Diagrams and Parts List 9A-5 UNSWB+ E0 BEAD C 0uF R0 0. L07.7nH C 00pF C7 00pF UNSWB+ TX_OUT C09 00pF L0 7.nH Microstrip Microstrip Q0 R7 00 L08.nH R0 0 R05 0 C 00pF C0 00pF L nh C 5pF C 5pF C 0pF R7. R77. C5 C 0pF C7 0pF C8 00pF C0 0pF L0 5.0nH C0 00pF C8.0uF R08 5.K TX_INJ H0 HEATSINK POS SH0 SHIELD R0 C95 00pF R0 00 R 0 TX_INJ_ R 00 C5 00pF R07 C5 00pF C50.0uF R 75 C 0.uF 7 RFOUT RFOUT VG VG RFIN VCNTRL VD G C5.0uF U0 0C5 NC NC NC NC 8 GND GND GND 5 GND UNSWB+ CLK ANT_BIAS Q UNSWB+ if R0 7K DATA C05 00pF 0K 7K C 00pF R75 7K C9 00pF C7 00pF R0 K R7 80K R7 K C7 000pF L 5.nH C9 5.pF C5 00pF C9 7.5pF C 00pF L 90nH C.0uF FROM_RF UNSWB+ R 70K C7 00pF CSX C 00pF R.7K 7K TX_BIAS L5 90nH R09 00K C 000pF R.MEG C 00pF C5.0uF ANO RSET 0 TEMP 9 CEX RFIN VAR T RX NA CI INT RS 5 U0 0 CJ H99S- VAR 9 VL VLIM 7 VAR 8 CL 8 V5EXT 7 GND 9 F8 0 QX Q CQ 8 CQX DATA 7 5 BPOS CLK GND V0 5 VG V5 C70 00pF 5V C0 00pF RESET ZMY007-D C8 00pF C 0.uF POS VOUT CR05 LM50 R0 0K C7.0uF GND R 8K UHF Transmitter Schematic Diagram

122 9A- Circuit Board/Schematic Diagrams and Parts List ANT_BIAS RF_JACK C.7pF C pf C08 00pF L05 90nH J0 RF_JACK C0 00pF L0 5.nH L0 5.nH CR0 TX_OUT GND C0 C0.8pF C0 5.pF L 7.0nH C.pF L0 5.nH RX_IN ANTENNA_CONTACT J0 A A CR0 K K CR0 C0 C07.9pF A K C0 SH00 SHIELD R70 0 C pf ZMY00-C if R0 0 UHF Harmonic Filter Schematic Diagram HF SHIELD

123 Circuit Board/Schematic Diagrams and Parts List 9A-7 UHF Radio Parts List Circuit Ref Motorola Part No. Description B A0 Connector, Battery Contact C0 70F5 00pF C0 Not Placed GCAM Dummy Part Number C0 70F.8pF C0 70F 5.pF C05 7N50 00pF C0 Not Placed C07 70F5 8.pF C08 7N50 00pF C09 70F5 00pF C0 7N50 00pF C 70F 5pF C 8005Z 0pF C 7N50 00pF C5 Not Placed C 7N 0pF C8 7N50 00pF C9 7N50 00pF C0 7N 0pF C 7N50 00pF C 7N50 00pF C 09A8 0uF C5 7N50 00pF C 7M 0.uF C7 7L7 000pF C8 7M08 0.0uF C9 7N 7.5pF C0 7N50 00pF C 7M08 0.0uF C 7N50 00pF C 7L7 000pF C 7L9 00pF C5 7M08 0.0uF C8 7N50 00pF C0 Not Placed C 70F5.pF C 70F.7pF C 70F0 pf C 70F pf C50 7M08 0.0uF C5 7N50 00pF C5 7M08 0.0uF C0 7N50 00pF C 7M 0.uF C5 7N50 00pF C 7N50 00pF C9 7N0 5.pF C70 7N50 00pF C7 7N50 00pF Circuit Motorola Ref Part No. Description C7 70F5 00pF C7 7M08 0.0uF C7 7N50 00pF C0 7N50 00pF C0 7L7 000pF C0 09A5.7uF C0 099J0.uF C0 70F 0pF C07 7N0 9pF C08 Not Placed C0 7N50 00pF C 7N50 00pF C 7N50 00pF C 7N50 00pF C 7N50 00pF C7 099J0.uF C8 7M 0.uF C9 7K 0.uF C0 7N50 00pF C 7M 0.uF C 7M 0.uF C8 09J.7uF C9 7L7 000pF C0 7N50 00pF C 7M 0.uF C 7E8 0.07uF C 09A0 0.pF C 09A05 0.7uF C5 099J0.uF C8 7F7 70pF C 7N50 00pF C 7N 7.5pF C 7N 7.5pF C 70F0.0pF C5 7N.pF C 7N50 00pF C7 7N50 00pF C8 7M 0.uF C50 7N 7.5pF C5 7N50 00pF C5 7N 0pF C5 70F09.8pF C5 7N5.pF C55 7N50 00pF C5 7N50 00pF C57 7N50 00pF C58 7L 0.0uF C59 7L 0.0uF C0 7N50 00pF C 7N0 0.75pF C 7N50 00pF Circuit Ref Motorola Part No. C5 Not Placed C7 Not Placed C7 Not Placed C7 7M 0.uF C7 099J0.uF C77 7N50 00pF C78 09A09.uF C79 099J0.uF C80 09A0.uF C8 7N50 00pF C85 7N50 00pF C8 7M 0.uF C89 7N50 00pF C9 09A9 0uF C9 7M 0.uF C9 7A7 0.7uF C9 7N50 00pF C95 7N50 00pF C9 7M 0.uF C97 7L 0.0uF C98 7M 0.uF C99 7N50 00pF C0 7N.8pF C0 7N9 pf C0 70L08.9pF C0 7N9 pf C05 7N 0pF C0 Not Placed C07 7M 0.uF C08 7N50 00pF C09 7N50 00pF C0 7M 0.uF C Not Placed C 7N9 pf C 7N 0pF C 7M 0.uF C5 7N50 00pF C 70L08.9pF C7 7N5 9.pF C8 7N 7.5pF C9 7N9.8pF C0 7N 7.5pF C 7N50 00pF C 7N8 8pF C 7N5 50pF C 7N 0pF C5 7L 0.0uF C 7L 0.0uF C7 7N50 00pF C8 7M 0.uF C9 7M 0.uF Description Circuit Motorola Ref Part No. Description C0 7N 0pF C 7N50 00pF C Not Placed C 7M08 0.0uF C 7M 0.uF C7 7N50 00pF C8 7N0 5pF C9 8078Z0.0uF C0 8078Z0.0uF C 8078Z0.0uF C 8078Z0.0uF C 7A 0.uF C 7M 0.uF C5 7M 0.uF C 7M 0.uF C7 7M 0.uF C8 7M 0.uF C9 7E 0.0uF C50 7L05 0pF C5 7N 0pF C5 7N8 pf C5 7N pf C5 7N 7pF C55 7A 0.0uF C5 7M08 0.0uF C57 7A 0.uF C58 7A 00pF C D 0.uF C0 7E 0.0uF C 7F9 0nF C 7M08 0.0uF C 09A0.uF C 7L 0.0uF C70 7N50 00pF C7 Not Placed C7 Not Placed C7 Not Placed C7 7N50 00pF C75 7N50 00pF C78 Not Placed C80 7L 0.0uF C8 7N 7.5pF C8 09A59 0uF C8 7N50 00pF C8 7N 5pF C85 7N 5pF C8 7N50 00pF C90 7N50 00pF C9 Not Placed C95 7N50 00pF C9 Not Placed

124 9A-8 Circuit Board/Schematic Diagrams and Parts List Circuit Motorola Ref Part No. Description C97 09A05 0.7uF C00 7L 0.0uF C0 7M 0.uF C0 7M 0.uF C0 98D08 0uF C07 98N0 0.uF C08 7N50 00pF C09 7M 0.uF C0 98N0 0.uF C 7M 0.uF C 98N0 0.uF C 7M 0.uF C Z0 0.0uF C 98N0 0.uF C9 Not Placed C0 7L 0.0uF C 98N0 0.uF C 7M 0.uF C 7N50 00pF C 09A59 0uF C5 7M 0.uF C 7N50 00pF C7 7N50 00pF C8 7M 0.uF C9 7M 0.uF C0 98N0 0.uF C 7N50 00pF C Not Placed C 7L 0.0uF C 7M 0.uF C5 7M 0.uF C0 7G.7uF C 7E 0.0uF C 98N0 0.uF C 7M08 0.0uF C7 98N0 0.uF C9 7N50 00pF C50 Not Placed C5 7M08 0.0uF C5 7G.7uF C5 7N50 00pF C5 7N50 00pF C55 7L09 70pF C5 7N50 00pF C58 7N50 00pF C59 7N50 00pF C 7N50 00pF C 7N50 00pF C7 98N0 0.uF C70 7N50 00pF C7 7N50 00pF Circuit Motorola Ref Part No. Description C7 7N50 00pF C7 7L09 70pF C75 7H 0uF C7 98D08 0uF C77 7N50 00pF C78 7N50 00pF C79 98N0 0.uF C80 98D08 0uF C8 98N0 0.uF C8 98N0 0.uF C8 7L7 000pF C8 7L7 000pF C85 7L7 000pF C8 Not Placed C87 Not Placed C88 Not Placed C89 Not Placed C9 Not Placed C9 7N50 00pF C98 7N50 00pF C99 7N50 00pF C500 7L7 000pF C50 7L7 000pF C50 09A05 0.7uF C50 7N50 00pF C50 7L7 000pF C505 7N50 00pF C50 7N50 00pF C507 7L7 000pF C508 7N50 00pF C509 7L7 000pF C5 7N50 00pF C5 7N50 00pF C5 7N50 00pF C5 7N50 00pF C55 7M 0.uF C58 7L7 000pF C59 7L7 000pF C50 7L7 000pF C5 7L 0.0uF C5 7L 0.0uF C5 7N50 00pF C5 7L7 000pF C55 7N50 00pF C5 7L7 000pF C57 7N50 00pF C58 7L7 000pF CR Z0 Pin Diode CR0 805J Pin Diode CR A5 Temperature Sense CR0 80J09 Triple Diode Circuit Motorola Ref Part No. Description CR0 88C0 Varactor CR 8059Q Dual Varactor CR 88C0 Varactor CR 88C0 Varactor CR5 805J Varactor CR0 88C0 Varactor CR0 88C0 Varactor CR0 8805K0 Dual Common Anode-Cathode CR0 88C0 Varactor CR05 88C0 Varactor CR0 805J Ring Quad Diode CR08 805J Pin Diode CR0 88C0 Varactor CR 805J Schottky Diode CR 805J Schottky Diode CR 805J Schottky Diode CR0 88C0 Dual Diode Common Cathode CR R0 Rectifier CR G9 LED Red/Yel E0 857R0 Ferrite Bead E00 800Z0 Ferrite Bead F Z0 A Fuse FL Z0.8MHz Crystal Oscillator FL0 805J Xtal Filter 5.Mhz H0 8099Z0 Heat Spreader J0 0985Z0 RF Jack J0 9808Z0 Antenna Contact J Y0 0-Pin Connector J0 8099G0 -Pin Connector J0 Not Placed J Z0 Connector(Mono Jack.5MM) L0 059B8 5.nH, 0% L0 059B8 5.nH, 0% L0 059B8 5.nH, 0% L05 587N 90nH L A0 7.nH L G0.7nH L A0.nH L 587N5 nh L 9H09 5.nH L 587N 90nH L5 587N 90nH L 059B5 7.7nH L0 Not Placed L0 587Q0.uH L0 587Q0.uH L0 587Q0.uH L 587P5 uh L 587V 90nH L 587V8 0nH Circuit Motorola Ref Part No. Description L 059C0 Teflon Resonator, Rx L5 587V8 nh L5 059C0 Teflon Resonator, Tx L 587V9 9nH L7 587V 8nH L7 587V8 nh L8 587V 90nH L8 587V 90nH L C0.9nH L C0.9nH L0 587V nh L0 587V7 80nH L05 587V nh L C0.9nH L C0.9nH L C0.8nH L0 587V 50nH L 587N5 750nH L 587N7.uH L Not Placed L5 80Z0.uH L0 587N 80nH L 80Z0.uH L 587N5 00nH L0 587V 90nH L00 587Q 90nH L0 587Q 90nH L 587Q 90nH L Q 90nH PB A0 Tactile Push Button PB A0 Tactile Push Button PB A0 Tactile Push Button Q0 888A09 FET Transistor Q 805J50 Dual NPN/PNP Transistor Q0 805J50 Dual NPN/PNP Transistor Q 8058N NPN Transistor Q0 805J50 Dual NPN/PNP Transistor Q 805J50 Dual NPN/PNP Transistor Q0 805J NPN Transistor Q0 805J NPN Transistor Q0 Not Placed Q5 880G0 NPN Transistor Q Not Placed Q0 8058N NPN Transistor Q E8 MOSFET P-Channel Q0 88A7 Bipolar Transistor Q05 805J5 Dual NPN Transistor Q0 805J5 Dual NPN Transistor Q7 805J50 Dual NPN/PNP Transistor Q8 805J50 Dual NPN/PNP Transistor Q R0 Dual NPN Transistor

125 Circuit Board/Schematic Diagrams and Parts List 9A-9 Circuit Motorola Ref Part No. Description Q0 8058M7 PNP Transistor Q 880G0 NPN Transistor Q 58059R0 Dual NPN Transistor Q 880G0 NPN Transistor Q R0 Dual NPN Transistor Q G0 NPN Transistor Q50 805J50 Dual NPN/PNP Transistor R0 0057A 0 R Z0 0. R0 0057M R0 0057N5 7K R C0 0 R0 0057M 0 R07 Not Placed R M9 5.K R N0 00K R0 0057M 00 R 0057M 0 R 0057M 00 R0 0057N K R0 0057M98 0K R 0057N05 8K R 0057N 70K R Not Placed R 0057N5.M R 0057M7 75 R A 0 R7 0057N K R7 0057A 00 R7 0057N9 80K R7 0057N5 7K R7 0057B7. R B7. R0 0057N 8K R0 0057N 00K R0 0057N5 7K R 0057M5 0 R 0057M9 0 R 0057M8 50 R 0057M 8 R 0057M57 00 R 0057M98 0K R 0057N0 K R5 0057M59 0 R8 0057M7 0 R5 0057M 8 R5 0057M 0 R5 0057M95 7.5K R5 0057M95 7.5K R M89.K R5 0057M7 0 Circuit Ref Motorola Part No. R0 0057M7 K R8 Not Placed R M8.K R0 0057N 00K R0 0057N 00K R0 0057M89.K R0 0057N0 K R M7 0 R0 0057N 00K R N 00K R M 7 R M0 0 R0 0057M0 70 R 0057N0 0K R 0057M9 5.K R 0057M 0 R 0057M85 K R5 0057N0 K R 0057A9 9K R7 0057M7 K R8 0057A79 8K R9 0057A9 50 R0 0057M7 K R 0057M8.K R 0057N0 00K R 0057M8 K R5 0057M9.8K R Not Placed R7 0057N K R8 0057M0 0 R9 0057M0 0 R0 Not Placed R Not Placed R Not Placed R Not Placed R Not Placed R5 Not Placed R Not Placed R8 Not Placed R9 0057M0 0 R0 0057M9.8K R 0057N 00K R 0057M 0 R 0057N0 K R5 0057M98 0K R 0057N7 5K R7 0057M7 K R8 0057M87.K R9 0057C0 0 R N 00K R5 0057C0 0 Description Circuit Ref Motorola Part No. R5 0057M8.K R M0 0 R N5 7K R0 0057M0 0 R0 Not Placed R0 Not Placed R M0 0 R0 0057N0 75K R08 Not Placed R0 0057N 00K R 0057M98 0K R 0057M0 0 R 0057V 80K R5 0057V 9K R 0057M98 0K R8 0057M0 0 R9 0057M90.7K R 0057N9 70K R5 0057N0 0K R7 0057M98 0K R8 0057M0. R9 0057M98 0K R 0057N 5K R Not Placed R5 0057M8 K R 0057N5 7K R7 Not Placed R8 0057M0 0 R9 0057N 00K R5 0057N08 K R Not Placed R7 0057N 00K R8 0057M98 0K R9 0057N08 K R5 0057N0 5K R5 0057N 00K R5 Not Placed R55 Not Placed R5 0057M0 0 R M98 0K R0 0057M90.7K R 0057N 00K R 0057N 00K R 0057M 00 R7 0057M98 0K R7 0057N0 0K R7 0057N K R7 0057M 0 R M0 0 R7 0057N08 K R M98 0K Description Circuit Motorola Ref Part No. Description R8 0057N08 K R9 0057M0 0 R9 Not Placed R9 0057M0 0 R N 00K R9 0057N 00K R N 00K R M98 0K R M70 80 R M5 80 R M98 0K R N5 7K R M0 0 R M98 0K RT Z0 Thermistor_K RT0 Not Placed RT Z0 Thermistor_K S Z0 Channel Switch S Z0 Volume Switch SH Z0 Shield, Harmonic Filter SH0 8050Z0 Shield, PA SH0 805Z0 Shield, LVFRACN Synthesizer top SH0 805Z0 Shield, LVFRACN Synthesizer bottom SH 805Z0 Shield, VCO Top SH 805Z0 Shield, VCO Bottom SH0 8055Z0 Rx Front end top shield SH Z0 Rx Front end bottom shield SH Z0 Shield, Mixer SH0 80Z0 Shield, Mixer Diode SH 80508Z0 Shield, LVZIF nd LO SH 805Z0 LVZIF Shield SH 8055Z0 Shield, Crystal Filter SH Z0 Control Memory Shield SH0 8050Z0 On/Off Controller Shield SH0 8055Z0 Microprocessor Shield SH0 805Z0 ASFIC CMP/Audio PA Controller Shield T0 5805Z0 ZFMR Coil T0 5805Z0 ZFMR Coil U0 5850C5 LDMOS Driver IC U B8 Power Control IC U0 5859A7 LVFRACN Synthesizer IC U0 50J Inverter U 50J Inverter U U5 VCO Buffer IC U X05 5V Regulator U8 50J58.V Regulator U0 509D8 LVZIF IC U00 50J0.V Regulator

126 9A-50 Circuit Board/Schematic Diagrams and Parts List Circuit Motorola Ref Part No. Description U Z ASFIC_CMP U05 Not Placed U0 *50J59 Flash ROM 8K X 8 U07 *50J K X 8 EEPROM U09 50J5 Microprocessor U0 50J57.V Regulator U0 50J Audio PA VR00 Not Placed VR 805J7.8V Zener VR 8800L5 0V Zener VR 8800L5 0V Zener VR9 8800L5 0V Zener VR0 805J7.8V Zener VR 805J7.8V Zener VR 805J7.8V Zener VR50 805J7 0V Zener VR5 805J7 0V Zener VR50 880A8.8V Zener VR50 805J7.8V Zener 85777Z0 Insulator (Kapton) 8807Z0 UHF B PC Board * Motorola Depot Servicing only

127 Troubleshooting charts 9A Troubleshooting charts PTT MCU Check INT AUDIO NO J0 Audio at Pin & Pin YES Check Spk. Flex Connection Audio at Audio PA YES (U0) input (U7) Check Audio PA (U0) NO Audio from Pin ASFIC, U0? NO Press PTT. Red LED does not light up PTT U09 Pin 5 low? YES Press PTT Q50- High? NO Check PB50 YES Power Up Alert Tone OK? NO Speaker OK? YES YES NO Not able to program RF Board ICs Replace Speaker Before replacing MCU, check SPI clock, SPI data, and RF IC select EXT PTT Check U0 LV ZIF Radio could not PTT externally YES EXT SPKR J0 Pin low? Pin high? YES NO NO Audio at Pin U0? YES Check ASFIC U0 U09 Pin 5 & low? NO YES Check Accessories LED should light up Check MCU See FGU Troubleshooting chart No Check Q50- voltage YES LED Q50,R50 OK? No Replace Faulty Component U09 EXTAL= 7.78 MHz? NO U0 Pin 9.8 MHz YES 5V at U7?.V at U8? YES U09 Reset Pin 9 High? YES YES NO NO NO Read Radio OK? YES 7.5V at Pin /5 U7? /.V at Pin U8 Check any short to SWB+, Vdda or Vddd Check Setup See FGU Troubleshooting chart YES NO NO Reprogram the correct data. Check Q00 Replace U7/U8 ASFIC U0 Pin & 5 high? NO Check U0 MCU is OK YES Check U0 Audio PA Troubleshooting Flow Chart for Controller

128 9A-5 Troubleshooting charts START Bad SINAD Bad 0dB Quieting No Recovered Audio Audio at pin 7 of U0? Yes Check Controller No Spray of inject st IF into XTAL Filter IF Freq: 5.MHz A B Yes Audio heard? Check Q0 bias circuitry for faults. No Rotate Freq. Knob B Yes Check nd LO Control Voltage at C VCO locked? No Check controller Activity on U0 LVZIF_SEL pin? Yes No Check FGU No.8 MHz check at pin U0? Before replacing U0, check nd VCO Q0. Check VCO O/P level, C5, C5. Yes A Troubleshooting Flow Chart for Receiver (Sheet of )

129 Troubleshooting charts 9A-5 B Inject RF into J0 IF Signal at L? No Yes RF Signal at T0? No RF Signal at C0? No Yes RF Signal at C07? No or weak RF Yes RF Signal at C0? No Yes Yes Trace IF signal from L to Q0. Check for bad XTAL filter. Check RF amp (Q0) Stage. Check filter between C0 & C07; program filter to schematic test freq and check varactor voltages. Check harmonic filters L0 & L0 and ant. switches CR0, CR0, L0 st LO O/P No OK? Check FGU Locked? Check T0, T0, CR0, R08, R09, Yes R0 Check filter between C0 & T0. Are varactor voltages OK? Q0 collector OK? IF signal present? No Check for. VDC No Is R5 present? No Check Q0, U0 (pin 8) voltages and U7 Yes Yes Before replacing U0, check U0 voltages; trace IF signal path. Yes Yes A A Check varactor filter. No Check U0 voltage. U0 can be selected by MCU before replacing U0. Troubleshooting Flow Chart for Receiver (Sheet of )

130 9A-5 Troubleshooting charts START No Power Yes Is There B+ Bias for Ant switch CR0 No Check Q Yes Is Current OK? No Is Control Voltage High or Low at C9 High Low Check PCIC Check Drive to Module. Check Pin Diodes. Check Harmonic Filter Inspect/Repair Tx. Output Network Yes Is Drive OK? No Troubleshoot VCO Is Power OK? No Inspect PA Network/ Check Power Out of U0 at Cap C0 Yes Done Done Yes Is Power OK? No Replace U0 Yes Is Power OK? Done No Replace Q0 Troubleshooting Flow Chart for Transmitter

131 Troubleshooting charts 9A-55 Start.V at U0 pins 5, 0, & NO Check U8, L0 & L0 Check CR0, U0, U, C58, C59 & C8 Correct Problem NO Visual check of the Board OK? YES YES 5V NO at pin of CR0 NO Is U0 Pin 7 VDC YES Check L0 Check Q0, Q & R0 NO Check 5V Regulator YES +5V at U0 Pin s & 0? YES Is.8MHz Signal at U0 Pin 9? YES NO Is.8MHz signal at U0 pin? NO YES Check FL0, C0, C07, C08, CR0 & R0 Replace U0 Is U Pin 9 <0.7 VDC in RX & >. VDC in TX? NO YES Are signals at Pin s & 5 of U0? NO Are Waveforms at Pins & 5 triangular? NO YES U0 pin at >V in Tx and <0.7V in Rx YES YES NO Do Pins 7,8 & 9 of U0 toggle when channel is changed? Is U0 Pin 8 AT.5 VDC? NO NO Replace U0 NO Is there a short between Pin 7 and Pins & 5 of U0? Check programming lines between U09 and U0 Pins 7,8 & 9 YES YES Remove Shorts YES NO Is information from µp U09 correct? Is RF level at U0 Pin >-0 dbm? NO If L, C & C are OK, then see VCO troubleshooting chart Check up U09 Troubleshooting Chart YES Replace U0 YES Are R,R, R,C,C, & C OK? NO Replace or resolder necessary components YES Replace U0 Troubleshooting Flow Chart for Synthesizer

132 9A-5 Troubleshooting charts START No Change U L5 O/C? Yes Change L5 No LO? Yes A Yes No No U Pin 0 >V? Yes TRB = Pin 9 No Tx Carrier? Check R5 for dry joint or faulty No AUX High? VCO OK Check R0 Yes No A Check U0 Pin for.v Change L Yes U Pin 9 =0V Yes VCTRL 0V or V? No Yes L Open Circuit? No No AUX High? Yes Check for faulty parts or dry joints of L7, L7, C70, C8, R9 & L09 No Change U0 Change U Change Q Troubleshooting Flow Chart for VCO

133 9B- Section 9B MODEL CHART AND TEST SPECIFICATIONS (-7 MHZ).0 Model Chart Model AZHKDC9AA Item GP88s, VHF, -7 MHz Description GP88s -7 MHz 5W CH Description X PMUD590* GP88s Super Tanapa -7 MHz 5W X PMUD59* GP88s Tanapa -7 MHz 5W X PMLD GP88s B/C Kit -7 MHz 5W X PMLN GP88s Front Housing Kit X PMAD0 Antenna, -55 MHz Stubby X PMAD0 Antenna, 55-7 MHz Stubby X PMAD0 Antenna, -55 MHz cm X PMAD05 Antenna, 55-7 MHz cm X PMAD0 Antenna, 50- MHz cm X PMAD05 Antenna, 50- MHz Stubby X 80J GP88s User Guide x = Indicates one of each is required. * Motorola Depot Servicing only

134 9B- Specifications.0 Specifications General VHF Frequency: -7 MHz Channel Capacity: GP88s : Channels Power Supply: 7.5 Volts ±0% Dimensions with Standard High Capacity NiMH Battery: Weight: with Standard High Capacity NiMH Battery: with High Capacity NiCd Battery: Average Battery ( Duty Cycle) Standard High Capacity NiMH Battery: Sealing: Shock: Vibration: Dust: Humidity: 57.5mm x mm x 8mm 9 g 5 g Low Power 0 hrs High Power 8 hrs Passes rain testing per IP5 Meets MIL-STD-80- C,D & E and TIA/EIA 0 Meets MIL-STD-80- C,D & E and TIA/EIA 0 Meets MIL-STD-80- C,D & E and IP5 Meets MIL-STD-80- C,D & E and TIA/EIA 0 Transmitter RF Output 7.5V: Frequency Channel Spacing Freq. Stability (-0 C to +0 C) Spurs/Harmonics: Audio Response: (from db/oct. Pre- Emphasis, 00 to 000Hz) Audio 000 Hz, 0% Rated Max. Dev. FM Noise: Receiver Low W VHF -7 MHz.5/0/5 khz % High 5W - dbm < GHz -0 dbm > GHz +, - db <5% -0 db VHF.5kHz Frequency: - 7MHz Sensitivity db EIA SINAD: Adjacent Channel Selectivity ETS Intermodulation ETS VHF 0/ 5kHz - 7MHz 0.5 µv 0.5 µv -0 db -70 db -5 db -5 db Freq. Stability % % (-0 C to +0 C): Spur Rejection: -70 db -70 db Image Rejection: -70 db -70 db Audio <5% Distortion 500 mw 500 mw All specifications are subject to change without notice.

135 Transmitter 9B-.0 Transmitter PCIC Vcontrol Vcontrol Antenna Jack From VCO PA Driver PA-Final Stage Antenna Switch/ Harmonic Filter/ Matching Network. General (Refer to Figure 9-) The VHF transmitter contains five basic circuits:. power amplifier. antenna switch. harmonic filter. antenna matching network 5. power control integrated circuit (PCIC)... Power Amplifier Figure 9- Transmitter Block Diagram The power amplifier consists of two devices:. 9Z7 LDMOS driver IC (U50) and. PRF507 LDMOS PA (Q50). The 9Z7 LDMOS driver IC contains a stage amplification with a supply voltage of 7.V. This RF power amplifier is capable of supplying an output power of 0.W (pin and 7) with an input signal of mw (dbm) (pin). The current drain would typically be 0mA while operating in the frequency range of -7MHz. The PRF507 LDMOS PA is capable of supplying an output power of 7W with an input signal of 0.W. The current drain would typically be 800mA while operating in the frequency range of - 7MHz. The power output can be varied by changing the biasing voltage.

136 9B- Transmitter.. Antenna Switch The antenna switch circuit consists of two PIN diodes (D5 and D55), a pi network (C5, L55 and C550), and two current limiting resistors (R57, R57, R57 ). In the transmit mode, B+ at PCIC (U50) pin will go low and turn on Q5 where a B+ bias is applied to the antenna switch circuit to bias the diodes "on". The shunt diode (D55) shorts out the receiver port, and the pi network, which operates as a quarter wave transmission line, transforms the low impedance of the shunt diode to a high impedance at the input of the harmonic filter. In the receive mode, the diodes are both off, and hence, there exists a low attenuation path between the antenna and receiver ports... Harmonic Filter The harmonic filter consists of C5 to C5, L5 and L5. This network forms a low-pass filter to attenuate harmonic energy of the transmitter to specifications level. The harmonic filter insertion loss should be less than.db... Antenna Matching Network A matching network which is made up of L58, C57 and C59 is used to match the antenna's impedance to the harmonic filter. This will optimize the performance of the transmitter and receiver into an antenna...5 Power Control Integrated Circuit (PCIC) The transmitter uses the Power Control IC (PCIC), U50 to control the power output of the radio by maintaining the radio current drain. The current to the final stage of the power module is supplied through R59 (0.ohms), which provides a voltage proportional to the current drain. This voltage is then fedback to the Automatic Level Control (ALC) within the PCIC to keep the whole loop stable. The PCIC has internal digital to analog converters (DACs) which provide the reference voltage of the control loop. The voltage level is controlled by the microprocessor through the data line of the PCIC. There are resistors and integrators within the PCIC, and external capacitors (C5, C5 and C55) in controlling the transmitter rising and falling time. These are necessary in reducing the power splatter into adjacent channels. U50 and its associated circuitry acts as a temperature cut back circuitry. This circuitry provides the necessary voltage to the PCIC to cut the transmitter power when the radio temperature gets too high.

137 Receiver 9B-5.0 Receiver Antenna RF Jack Pin Diode Antenna Switch Varactor Tuned Filter RF Amp Varactor Tuned Filter Mixer Crystal Filter IF Amp AGC Control Voltage from ASFIC First LO from FGU Recovered Audio Squelch RSSI Demodulator U0 Synthesizer IF IC.8 MHz Reference Clock SPI Bus Second LO VCO Figure 9- VHF Receiver Block Diagram. Receiver Front-End (Refer tovhf Receiver Front End Schematic Diagram on page 9B-, VHF Receiver Back End Schematic Diagram on page 9B-7, and VHF Transmitter Schematic Diagram on page 9B-0) The RF signal is received by the antenna and applied to a low-pass filter. For VHF, the filter consists of L5, L5, C5 to C5. The filtered RF signal is passed through the antenna switch. The antenna switch circuit consists of two PIN diodes(d5 and D55) and a pi network (C5, L55 and C550).The signal is then applied to a varactor tuned bandpass filter. The VHF bandpass filter comprises of L0, L0, C0 to C0 and D0. The bandpass filter is tuned by applying a control voltage to the varactor diode (D0) in the filter. The bandpass filter is electronically tuned by the DACRx from U0 which is controlled by the microprocessor. Depending on the carrier frequency, the DACRx will supply the tuned voltage to the varactor diodes in the filter. Wideband operation of the filter is achieved by shifting the bandpass filter across the band. The output of the bandpass filter is coupled to the RF amplifier transistor Q0 via C0. After being amplified by the RF amplifier, the RF signal is further filtered by a second varactor tuned bandpass filter, consisting of L05, L0, C to C and D0. Both the pre and post-rf amplifier varactor tuned filters have similar responses. The db bandwidth of the filter is about MHz. This enables the filters to be electronically controlled by using a single control voltage which is DACRx.

138 9B- Receiver The output of the post-rf amplifier filter is connected to the passive double balanced mixer which consists of T0, T0 and CR0. Matching of the filter to the mixer is provided by C7, C8 and L08. After mixing with the first LO signal from the voltage controlled oscillator (VCO) using high side injection, the RF signal is down-converted to the 5. MHz IF signal. The IF signal coming out of the mixer is transfered to the crystal filter (Y00) through a resistor pad (R - R) and a diplexer (C0 and L09). Matching to the input of the crystal filter is provided by C00 and L00. The crystal filter provides the necessary selectivity and intermodulation protection.. Receiver Back-End (Refer to VHF Receiver Back End Schematic Diagram on page 9B-7) The output of crystal filter Y00 is matched to the input of IF amplifier transistor Q00 by capacitor C0. Voltage supply to the IF amplifier is taken from the receive 5 volts (R5). The gain controlled IF amplifer provides a maximum gain of about 0dB. The amplified IF signal is then coupled into U0(pin ) via L0, C07, and C0 which provides the matching for the IF amplifier and U0. The IF signal applied to pin of U0 is amplified, down-converted, filtered, and demodulated, to produce the recovered audio at pin 7 of U0. This IF IC is electronically programmable, and the amount of filtering (which is dependent on the radio channel spacing) is controlled by the microprocessor. Additional filtering, once externally provided by the conventional ceramic filters, is replaced by internal filters in the IF module (U0). The IF IC uses a type of direct conversion process, whereby the externally generated second LO frequency is divided by two in U0 so that it is very close to the first IF frequency. The IF IC (U0) synthesizes the second LO and phase-locks the VCO to track the first IF frequency. The second LO is designed to oscillate at twice the first IF frequency because of the divide-by-two function in the IF IC. In the absence of an IF signal, the VCO will search for a frequency, or its frequency will vary close to twice the IF frequency. When an IF signal is received, the VCO will lock onto the IF signal. The second LO/VCO is a Colpitts oscillator built around transistor Q70. The VCO has a varactor diode, D70, to adjust the VCO frequency. The control signal for the varactor is derived from a loop filter consisting of C78 to C80, R7 and R75. The IF IC (U0) also performs several other functions. It provides a received signal-strength indicator (RSSI) and a squelch output. The RSSI is a dc voltage monitored by the microprocessor, and used as a peak indicator during the bench tuning of the receiver front-end varactor filter. The RSSI voltage is also used to control the automatic gain control (AGC) circuit at the front-end. The demodulated signal on pin 7 of U0 is also used for squelch control. The signal is routed to U0 (ASFIC) where squelch signal shaping and detection takes place. The demodulated audio signal is also routed to U0 for processing before going to the audio amplifier for amplification.

139 Receiver 9B-7. Automatic Gain Control Circuit (Refer to VHF Receiver Front End Schematic Diagram on page 9B- and VHF Receiver Back End Schematic Diagram on page 9B-7) The front end automatic gain control circuit provides automatic reduction of gain, of the front end RF amplifier via feedback. This action is necessary to prevent overloading of backend circuits. This is achieved by drawing some of the output power from the RF amplifier output. At high radio frequencies, capacitor C7 provides the low impedance path to ground for this purpose. CR0 is a PIN diode used for switching the path on or off. A certain amount of forward biasing current is needed to turn the PIN diode on. Transistor Q0 provides this current. Radio signal strength indicator, RSSI, a voltage signal, is used to drive Q0 to saturation i.e. turned on. RSSI is produced by U0 and is proportional to the gain of the RF amplifier and the input power to the radio. Resistors R0 and R05 are voltage dividers designed to turn on Q0 at certain RSSI levels. In order to turn on Q0 the voltage across R05 must be greater or equal to the voltage across R + Vbe. Capacitor C09 is used to dampen any instability while the AGC is turning on. The current flowing into the collector of Q0, a high current gain NPN transistor, will be drawn through the PIN diode to turn it on. Maximum current flowing through the PIN is limited by the resistors R, R, R0 and R. C is a feedback capacitor used to provide some stability to this high gain stage. An additional gain control circuit is formed by Q0 and its associated circuitry. Resistors R0 and R07 are voltage dividers designed to turn on Q0 at a significantly higher RSSI level than the level required to turn on PIN diode control transistor Q0. In order to turn on Q0 the voltage across R07 must be greater or equal to the voltage across R08, plus the base-emitter voltage (Vbe) present at Q0. As current starts flowing into the collector of Q0, it reduces the bias voltage at the base of IF amplifier transistor Q00 and in turn, the gain of the IF amplifier. The gain can be controlled in a range of -0dB up to +0dB.

140 9B-8 Frequency Generation Circuitry 5.0 Frequency Generation Circuitry Vmult.8 MHz Ref. Osc. Voltage Multiplier Vmult VCP Synthesizer U70 Modulating Signal Aux MOD Out Loop Filter TRB Rx VCO Circuit Tx VCO Circuit VCOBIC U80 Rx Out Tx Out To Mixer To PA Driver Figure 9- Frequency Generation Unit Block Diagram The Frequency Generation Circuitry is composed of two main ICs, the Fractional-N synthesizer (U70), and the VCO/Buffer IC (U80). Designed in conjunction to maximize compatibility, the two ICs provide many of the functions that normally would require additional circuitry. The synthesizer block diagram illustrates the interconnect and support circuitry used in the region. Refer to the relevant schematics for the reference designators. The synthesizer is powered by regulated 5V and.v which come from U7 and U0 respectively. The synthesizer in turn generates a superfiltered.5v which powers U80. In addition to the VCO, the synthesizer must interface with the logic and ASFIC circuitry. Programming for the synthesizer is accomplished through the data, clock and chip select lines from the microprocessor. A.V dc signal from synthesizer lock detect line indicates to the microprocessor that the synthesizer is locked. Transmit modulation from the ASFIC is supplied to pin0 of U70. Internally the audio is digitized by the Fractional-N and applied to the loop divider to provide the low-port modulation. The audio runs through an internal attenuator for modulation balancing purposes before going out to the VCO.

141 Frequency Generation Circuitry 9B-9 5. Synthesizer (Refer tovhf Synthesizer Schematic Diagram on page 9B-8) The Fractional-N Synthesizer uses a.8mhz crystal (Y7) to provide a reference for the system. The LVFractN IC (U70) further divides this to.mhz,.5mhz, and.mhz as reference frequencies. Together with C7, C7, C7, R7 and D7, they build up the reference oscillator which is capable of.5ppm stability over temperatures of -0 to 85 C. It also provides.8mhz at pin 9 of U70 to be used by ASFIC and LVZIF. The loop filter which consist of C7, C7, R7, R7 and R7 provides the necessary dc steering voltage for the VCO and determines the amount of noise and spur passing through. In achieving fast locking for the synthesizer, an internal adapt charge pump provides higher current at pin 5 of U70 to put synthesizer within the lock range. The required frequency is then locked by normal mode charge pump at pin. Both the normal and adapt charge pumps get their supply from the capacitive voltage multiplier which is made up of C70 to C70 and triple diodes D70, D70. Two.V square waves ( 80 deg out of phase) are first multiplied by four and then shifted, along with regulated 5V, to build up.5v at pin 7 of U70. 7 DATA (U09 PIN 00) 8 CLOCK (U09 PIN ) 9 CSX (U09 PIN ) 0 MOD IN (U0 PIN 0), 0 +5V (U7 PIN ) 5, 0,, (U0 PIN 5) REFERENCE OSCILLATOR 5 VOLTAGE MULTIPLIER 7 DATA CLK CEX U70 LOW VOLTAGE MODIN FRACTIONAL-N SYNTHESIZER VCC, DC5V VDD,.V XTAL XTAL WARP PREIN VCP VMULT 5 VMULT LOCK FREFOUT GND IOUT IADAPT MODOUT AUX AUX SFOUT 9,,, 5 8 BIAS 0 AUX BIAS 9 8 DUAL 5V TSTRS FILTERED 5V R5 LOCK (U09 PIN 5) FREF (U0 PIN & U0 PIN ) -POLE LOOP FILTER STEERING LINE VOLTAGE CONTROLLED OSCILLATOR LO RF INJECTION TX RF INJECTION (ST STAGE OF PA) PRESCALER IN Figure 9- Synthesizer Block Diagram

142 9B-0 Frequency Generation Circuitry 5. VCO - Voltage Controlled Oscillator (Refer tovhf Voltage Controlled Oscillator Schematic Diagram on page 9B-9) AUX (U70 Pin) TRB_IN Prescaler Out U70 Pin Pin 0 Pin 9 Pin Rx-SW Tx-SW Pin7 Pin TX/RX/BS Switching Network (U70 Pin8) VSF Pin Vcc-Superfilter U80 VCOBIC Presc LO RF INJECTION Matching Network Low Pass Filter Steer Line Voltage (VCTRL) RX Tank TX Tank RX VCO Circuit TX VCO Circuit Collector/RF in Pin RX Pin5 Pin Pin Pin5 TX Vsens Circuit Rx Active Bias Tx Active Bias RX TX Pin8 Pin Pin0 VSF (70 Pin8) VCC Buffers TX RF Injection Attenuator Pin8 Pin Pin Pins 9,,7 Vcc-Logic Rx-I adjust Tx-I adjust VSF (U70 Pin8) Figure 9-5 VCO Block Diagram The VCOBIC (U80) in conjunction with the Fractional-N synthesizer (U70) generates RF in both the receive and the transmit modes of operation. The TRB line (U80 pin 9) determines which oscillator and buffer will be enabled. A sample of the RF signal from the enabled oscillator is routed from U80 pin, through a low pass filter, to the prescaler input (U70 pin ). After frequency comparison in the synthesizer, a resultant CONTROL VOLTAGE is received at the VCO. This voltage is a DC voltage typically between.5v and 9.5V when the PLL is locked on frequency.

143 Frequency Generation Circuitry 9B- The RF section of the VCOBIC(U80) is operated at.5 V (VSF), while the control section of the VCOBIC and Fractional-N synthesizer (U70) is operated at.v. The operation logic is shown in Table 9-. Table 9- VCO Control Logic Desired Mode AUX AUX TRB Tx n.u. High (@.V) High (@.V) Rx n.u. Low Low Battery Saver n.u. Hi-Z/Float (@.V) Hi-Z/Float (@.V) In the receive mode, U80 pin 9 is low or grounded. This activates the receive VCO by enabling the receive oscillator and the receive buffer of U80. The RF signal at U80 pin 8 is run through a matching network. The resulting RF signal is the LO RF INJECTION and it is applied to the mixer at T0. During the transmit condition, when PTT is depressed,. volts is applied to U80 pin 9. This activates the transmit VCO by enabling the transmit oscillator and the transmit buffer of U80. The RF signal at U80 pin 0 is injected into the input of the PA module (U50 pin). This RF signal is the TX RF INJECTION. Also in transmit mode, the audio signal to be frequency modulated onto the carrier is received through U70 pin. When a high impedance is applied to U80 pin9, the VCO is operating in BATTERY SAVER mode. In this case, both the receive and transmit oscillators as well as the receive transmit and prescaler buffer are turned off.

144 9B- Notes For All Schematics and Circuit Boards.0 Notes For All Schematics and Circuit Boards * Component is frequency sensitive. Refer to the Electrical Parts List for value and usage.. Unless otherwise stated, resistances are in Ohms (k = 000), and capacitances are in picofarads (pf) or microfarads (µf).. DC voltages are measured from point indicated to chassis ground using a Motorola DC multimeter or equivalent. Transmitter measurements should be made with a. µh choke in series with the voltage probe to prevent circuit loading.. Reference Designators are assigned in the following manner: 00/500 Series = Controller 00 Series = Keypad Board 00 Series = IF Circuitry 00 Series = Receiver 500 Series = Transmitter 700 and 800 Series = Frequency Generation. Interconnect Tie Point Legend: UNSWB+ = Unswitch Battery Voltage (7.5V) SWB+ = Switch Battery Voltage (7.5V) R5 = Receiver Five Volts CLK = Clock Vdda = Regulated. Volts (for analog) Vddd = Regulated. Volts (for digital) CSX = Chip Select Line (not for LVZIF) SYN = Synthesizer DACRX = Digital to Analog Voltage (For Receiver Front End Filter) VSF = Voltage Super Filtered (5 volts) VR = Voltage Regulator -LAYER CIRCUIT BOARD DETAIL VIEWING COPPER STEPS IN PROPER LAYER SEQUENCE SIDE LAYER (L) LAYER (L) LAYER (L) LAYER (L) LAYER 5 (L5) LAYER (L) INNER LAYERS SIDE