SERVICE MANUAL MULTI CHANNEL AM/FM TRANSCEIVER TCB-880. TTI Tech

Transcription

1 SERVICE MANUAL MULTI CHANNEL AM/FM TRANSCEIVER TCB-880 TTI Tech

2 TABLE OF CONTENTS SECTION SPECIFICATIONS SECTION 2 CIRCUIT DESCRIPTION GENERAL 2 TECHNICAL DESCRIPTION 3 SEMICONDUCTORS AND FUNCTION 4 DESCRIPTION OF FREQUENCY DETERMINING AND STABILIZING CIRCUIT 5 TEST EQUIPMENT SETUP AND ALIGNMENT INSTRUCTIONS SECTION 3 PART LIST SECTION 4 MECHANICAL DISASSEMBLY SECTION 5 BOARD LAYOUT 5- MAIN PCB 5-2 FRONT PCB 5-3 LED PCB 5-4 VOLUME PCB 5-5 MIC PCB SECTION 6 BLOCK DIAGRAM SECTION 7 SCHEMATIC

3 SECTION SPECIFICATIONS G E N E R A L T R A N S M I T T E R R E Channel Frequency Range Operating mode Frequency Control Frequency Tolerance Operating Temperature Range Microphone Input Voltage Size Weight Antenna Connector Power Output Modulation Frequency Response Output Impedance Harmonic Suppression Current Drain Receiving System IF Frequencies Sensitivity 40 (See the frequency band chart) MHz ~ MHz F3E (FM), A3E (AM) PLL Synthersizer 0.002% -0 to + 55 C Plug-in Type 3.2V DC ± 5% 56 (W) x 76 (L) x 5(H) 990 g SO-239 type Duty cycle 0% 4 DC AM:from 85% to 95% FM:.8KHz ± 0.2KHz 300Hz to 3000Hz 50ohms, Unbalanced More than -36dBm AM Full Mod..6A Max. Dual conversion superheterodyne Double Conversion st 0.695MHz/2nd 455KHz 0.7 V for 0dB(S+N)/N in AM Mode 0.5 V for 20dB SINAD in FM Mode 8 Ohm Less then KHz 60 db 60 db More than 60 db 300 to 2500Hz 8 Ohms, round C Audio Output Power E Audio Distortion I Image Rejection V Adjacent Channel Rejection E R Conducted Spurious Frequency Response Built-in Speaker Squelch Adjustable; Threshold less than microvolt * Specification is subject to change without prior notice.

4 SECTION2 CIRCUIT DESCRIPTION Contents General -. Receiver.2. Transmitter 2. Technical Description 2-. General 2-2. Type of emission 2-3. Frequency Table 2-4. RF Power Output 2-5. DC input Voltage and Current with 3.2V DC Input to Power AMP 2-6. Receiver IF and Local Oscillator Frequencies 3. Semiconductors and Function 4. Description of Frequency Determining and Stabilizing Circuit 4-. Introduction 4-2. Basic Synthesis Scheme 4-3. Descriptions of Each Block Introduction Reference Frequency VCO Programmable Divider and its Control Phase Detector and VCO Control Transmitter / Receiver Buffer AMP Transmitter Doublers Switching of Turning Capacitor in VCO Receiver Local Oscillator Outputs 4-4. Frequency Stability 4-5. Description of other Circuits Transmitter Receiver 5. Test Equipment Setup and Alignment Instructions 5-. General Section 5-2. Transmitter Section 5-3. Receiver Section

5 . General -. Receiver Display : 40 Channels and other functions indication Frequency Range : to [MHz] Frequency Response : 300 to 2,500 [Hz] Power Source : 3.2 [V] DC Audio Output Load : 8 [OHM] Audio Output : 4.0 [W] (or More) Squelch : Adjustable from 0.3[uV] to 00 [uv] Sensitivity : - FM : 20 db [SINAD] under.0 [uv] RF Signal or less - AM :0 db [S/N] under.0 [uv] RF Signal or less Intermediate Frequency : - st IF : [MHz] - 2nd IF : 455 [KHz] -2. Transmitter Carrier Power(Conducted) : AM [W] / FM 4 [W] Current Drain ( 3.2 [V] Supply Voltage) - No Modulation :,000 [ma] - Max Modulation :,400 [ma] Modulation Capabilities - AM : ± 90 [%] - FM : ±.8 [KHz/Dev] Spurious Radiation : Less then 74 [dbc] Antenna Impedance : 50 [OHM] Frequency Tolerance : [%]

6 2. Technical Description 2-. General Model CB-880 is an mobile type AM/FM radio transceiver for use of the Citizen Radio Service. Front Panel Controls LCD (Cannel and RX/TX Signal Level Indicator). Receiver Audio Control (With Power ON/OFF Control) Volume Squelch Control Volume RF Gain Control Volume MIC GAIN Control Volume CHANNEL UP/DOWN Rotary Switch Q.CHANNEL UP/DOWN Rotary Switch Memory(M, M2, M3, M4) Key DW(Dual Watch) Key EMG(Emergency Channel Select) Key AM/FM Select Key Scan Key CB/PA Slide Switch ANL/OFF Slide Switch LOCAL/DX Slide Switch Accessorily Connectors Antenna Socket External Speaker Jack External PA Jack External Signal Meter Jack Microphone(Condenser Microphone) 2-2. Type of emission : AM(A3E), FM(F3E)

7 2-3. Frequency Table 2-4. RF Power Output AM :.0 [W] FM : 4.0 [W] Channel Frequency (MHz) Channel Frequency (MHz) DC Iinput Voltage and Current with 3.2V DC Input to Power AMP Transmitter Power Amp : Voltage 2.5 V Current 727 ma Transmitter Driver Amp : Voltage 2.5 V Current 20 ma 2-6. Receiver IF and Local Oscillator Frequencies First IF : [MHz] Second IF : 455 [KHz] First Local Oscillator : [MHz] Below Receiving Frequency Second Local Oscillation : [MHz]

8 3. Semiconductors and Function 3-. Transistor Ref No. Description Manufacturer Function Q0 KTC3880S KEC RX Amplifier Q02 KTK2 KEC st Mixer Q03 KTK2 KEC st Mixer Q04 KRC0S KEC RX Band Switching Q05 KRC0S KEC RX Band2 Switching Q2 KRC0S KEC Q22 KRC2S KEC RX RSSI Level Control Q3 KTC3875S KEC Squelch Q5 KTC3875S KEC RX FM AF Amplifier Q52 KRC2S KEC FM AF Mute at AM Mode Q53 KRC0S KEC FM AF Mute at AM Mode Q54 KRC2S KEC RX AF Mute at TX Mode Q6 KTC3880S KEC AM IF Amplifier Q62 KTC3880S KEC AM IF Amplifier Q63 KRA02S KEC RX AM B+ Q64 KTA504S KEC Automatic Noise Level Control Q8 KTC3875S KEC RX RF Mute at TX Mode Q82 KTC3875S KEC AGC Q83 KTC3875S KEC AGC Q20 KRC0S KEC AF Mute Q202 KRC202S KEC AF Path Q233 KTA504S KEC Automatic Level Control Q234 KTC3875S KEC Automatic Level Control Q30 KTC3880S KEC VCO Q302 KTC3880S KEC RX/TX VCO Buffer Q303 KTC3880S KEC VCO Buffer Q305 KRC0S KEC TX VCO Control Q3 KRC0S KEC RX Band Switching Q32 KRC0S KEC RX Band2 Switching Q33 KRC0S KEC RX Band3 Switching Q502 KTC3875S KEC FM TX AF Mute at AM TX Q70 KTC3880S KEC TX Doublers Q702 KTC3880S KEC TX Pre-Amplifier Q703 KTC006 KEC TX Driver Amplifier Q704 2SC2078 SANYO TX Power Amplifier Q742 KTC3875S KEC TX RF Mute at RX Mode Q80 KRC0S KEC CPU Reset Q802 KRC0S KEC CPU RX/TX Control Q803 KRA0S KEC MIC Lock Control Q9 KTA658 KEC Main Regulator Q92 KRA504S KEC Main Regulator Q93 KRC2S KEC Main Regulator Control Q94 KRC02S KEC Power Low Control Q92 KTC3875S KEC 8.2V Regulator Q922 KRC2S KEC 8.2V Regulator Mute at PA Mode Q923 KTC3875S KEC RX B+ Q924 KRA504S KEC TX B+

9 Q94 KRCS KEC Mute Q942 KRC2S KEC TX B+ Mute at TX Mode Q95 KTA24 KEC Back Light LED Control Q952 KTA24 KEC Back Light LED Control Q953 KRC0S KEC Back Light LED Control Q954 KRC0S KEC Back Light LED Control Q96 KRC0S KEC TX AF Mute at RX Mode Q962 KRCS KEC MIC AF Path at AM Mode Q963 KRCS KEC MIC AF Path at PA Mode 3-2. IC Ref No. Description Manufacturer Function IC0 TK44889V TOKO IF IC IC02 KIA358F KEC AGC, Squelch Control IC20 KIA727AP KEC AF Power Amplifier IC30 LC752NM SANYO PLL IC40 KIA4558F KEC FM TX AF IC80 TMP87PP2DF TOSHIBA CPU IC802 24WC02 ATMEL EEPROM 3-3. Manufacture Information KEC KEC Co., LTD. SANYO SANYO Semiconductor Co., LTD. TOKO TOKO, Inc. TOSHIBA Toshiba Semiconductor. Co., LTD. ATMEL ATMEL Co., LTD

10 4. Description of Frequency Determining and Stabilizing Circuit 4-. Introduction The Frequencies for transmitter and receiver first local frequencies are all derived from a signal 4.5MHz crystal by means of a phase locked loop(pll). The first local oscillator frequencies are 6.270MHz(CH) to 6.70MHz(CH40). The second local frequency is fixed at 0.240MHz to generate second IF 455KHz. Transmit, the VCO of the PLL operates MHz(CH) to MHz(40CH). The VCO frequency goes to the doublers circuit Q70, L70, L702 with doubles the frequency to generate MHz(CH) to MHz(40CH). Q302 VCO MHz(CH) ~ MHz(CH40) Q70 Doublers MHz(CH) ~ MHz(CH40) To transmitter The VCO operating frequency for the receiver is 6.27MHz(CH) to 6.70MHz(CH40) as the first local oscillator, injected through the buffer amplifier Q302 into the first FET balanced mixer Q02, Q Basic Synthesis Scheme The crystal frequency(4.5mhz) is divided by 800 times to make 2.5KHz which is fed to one side of the phase detector. The VCO output is divided by a programmable divider, and fed to other side of the phase detector Pin 9, 0 of IC30. Passing the phase detector output closes the feedback loop through an active low pass filter and using the output to control the VCO frequency through varicap diode D30. Under locked conditions, both of phase detector input signal must be identical at 2.5KHz. The VCO frequency is then given by ; Receiver : Fvco / N = [MHz] OR Fvco = X N [MHz] Transmitter : Fvco / N = [MHz] OR Fvco = X N [MHz] Since N is an integer, the VCO frequency can be stepped up with in receiver mode 5KHz and transmitter mode 2.5KHz increments. By suitable choice of N the desired output frequency can be obtained. Channel Channel 40 N Fvco N Fvco Transmit Receiver See the [Table ]for other Channels The VCO frequency goes to the doublers circuit, with doubles the incoming signals. VCO Output Frequency Doublers Output Frequency

11 Transmit Transmit CH, MHz CH 40, MHz MHz MHz Since all frequencies are obtained from the crystal controlled PLL oscillator, all outputs are coherent with the crystal oscillator frequency and matching the sample percentage accuracy. Note that the reference frequency of 5KHz(receiver) and 2.5KHz(transmitter) is obtained by dividing the 4.5MHz by 900 times and 800 times See Table for transmitter/receiver mode VCO frequencies.

12 Channel Frequency Program Data & Frequency[Table ] RX TX [MHz] N Fvco N Fvco

13 4-3. Descriptions of Each Block Introduction The synthesizer is implemented with the following components; PLL IC (IC30) X-TAL (X30) VCO, VARICAP DIODE (D30) IC30 is CMOS LSI that includes most of PLL block. The Q30, L30, C3, C32, C33, C34, varicap diode D30 are clap oscillator circuit to operate as a VCO of the IC30. Q305 is a switching transistor to connect or disconnect the tuning capacitor in the VCO oscillator tank circuit for transmitter or receiver. Q302 works as a buffer amplifier for RX local frequencies ( 6MHz) and TX carrier generating frequencies( 3MHz) Reference Frequency The crystal X30(4.5MHz) and other components at Pin and 24 of IC30 can make a reference frequency oscillator with internal amplifier VCO Q30 and surrounding parts are consisting a clap oscillator works as a VCO of IC30. With appropriate control voltage on D30 the VCO can be oscillate over the required range of MHz to 6.70MHz Programmable Divider and its Control The programmable input for each channel are stetted by the PLL Clock(Pin ), PLL Data(Pin 2), PLL Enable(Pin 3) of IC80. Each input signal to control the PLL ic is done with provide key input Pin 8, 9, 25, 26, 27, 28, 29, 32, 33, 34, 35, 37. For each key input, an internal code converts EEPROM appropriate control to the programmable divider for that channel. Since the change transmit and receive, and additional bit is required at Pin 8 of IC80 to allow the ROM to recognize the status TX or RX. During transmit the push to talk switch makes Pin 8 ground with BRT(Q802), PLL IC works under transmit status. The programmable divider output fed to the phase detector for compare with the 2,5KHz reference frequency IC30. See table for actual input and divide ratio on all channels Phase Detector and VCO Control The phase detector is a digital phase comparator witch compares the phase of the reference signal with programmable divider output square waves and develops a series of pulses whose dc level depends on the phase error of each signal. The phase detector pulse output is fed to an active low pass filter and RC low pass filter output signal of IC30 is filtered and fed to varicap D30 control the VCO frequency Transmitter / Receiver Buffer AMP Output signal of Q30 is fed into the buffer amplifier Q302, L302 to generate TX carrier frequency and st local frequencies.

14 Transmitter Doublers The output signal of Q302, L302 goes to an amplifier with tuning circuit Q70, L70, L702 which doubles incoming 3MHz signals Switching of Turning Capacitor in VCO The VCO circuit must tune with a wide range of frequencies MHz ~ MHz for transmitter and 6.27MHz ~6.7MHz for receiver. To comply above range of VCO, the tuning capacitance should switch for transmission. The tuning circuit consists with L30, C3, C32, C33, and C34. When the VCO is working as a receiver Q305 becomes turn OFF. So, L30 and C3, D30 makes turning function. When transmitting, Q305 becomes ON. S the o, L30 an parallel capacitance of C36 and C3 make turning function Receiver Local Oscillator Outputs FIRST MIXER : The secondary output signal of L07 is injected to the sources of st mixer Q02, Q03 in the st IF mixer section. SECOND MIXER : The output of 0.24MHz oscillator circuit with X0 is injected into the IF IC(IC0) internally. Incoming IF signal and 0.24MHz signal are mixed inside the IF IC to extract 2 nd IF signal 455KHz. FM audio Signals are recovered with the way of quadrature detector. AM signals are recovered with envelope detector Frequency Stability Let : Fo = Crystal oscillator frequency Fr = Phase detector reference frequency Fvco = VCO frequency Ft = Transmit frequency Then : Receiver : Fr = Fo/900 Transmitter : Fr = Fo/800 And under locked conditions : Fr = Fvco / N Where, N is the programmable divider divide ratio. Then : Fvco = N X Fr) From which it can be seen, the percentage error in Ft is the same as the percentage error in Fo. The stability of the crystal oscillator is determined primarily by the crystal itself and having lesser deviation by the active and passive components of the oscillator. The choice of crystal and components is such that the required frequency stability is maintained over the required voltage and temperature range.

15 4-5. Description of other Circuits Transmitter A. RF Amplification RF carrier frequencies are obtained at the output of doublers amplifier Q70 and turning IFT coil L70, L702. The input of VCO frequencies 3MHz is selected at the doublers output, which creates the necessary 27MHz. The output of doublers amplifier Q70 is fed through turning IFT coil L70, L702 to the base of pre driver amplifier Q702. It s output; 27MHz is coupled to RF driver amplifier Q703, a lowlevel class C power amplifier. Driver Q703 supplies the necessary power gain to operate RF final Q704 at the maximum efficient. The output of Q704 is supplied to the antenna through L-C turning circuit. B. Circuit for Suppression of Spurious Radiation The turning circuit between the output of final amplifier Q704 and antenna, 4-stage network C722, C723, C724, L7, C725, C726, L72, C729, C73, L732, C732, C733, C734, L74, C735 serves as a spurious radiation suppressor. This network also servers to match the impedance between TX power amplifier Q704 and the antenna. C. Circuits for Limiting Power After finished all alignment, the constant voltage supply circuit limits the available power 4W or slightly less. RV9 and corresponding three-transistor control supply voltage of RF power amplifier. When power low switch function Q94 changed the supply voltage. Tune all the trimming parts for maximum indication of RF power meter and adjust RV57 to make 4W indication of RF power meter. After finishing the above adjustments check the RF power meter reading is changed W under LOW state. The turning is adjustment so that the actual power is from 3.8W to 4.0W. There are no other additional controls for adjusting the TX output power. D. Modulation Control Modulation of the RF is a process that begins with the audio picked up by the microphone. <FM> The microphone input is fed to mic audio amplifier IC40 that drives modulation vricap diode D302 in the VCO circuit RV40 limits the incoming modulation audio levels to inhibit over modulation. While reading the modulation factor on the modulation analyzing equipment, adjustment RV40 shall not exceed 2.0KHz deviation. <AM> Modulation signals are filtered with RC network and goes to the audio power amplifier IC20 in to make normal signal level to achieve wanted modulation. IC20 drives T20, which is a combination AF output/modulation transformer. During transmit, one of the secondary windings of T20 is tied between the 3.2V DC supply and the collectors of RF driver Q703 and RF power amplifier Q704. As the audio passes through T20 it causes the collector supplies of Q703 and Q704 to vary with audio, producing an AM signal at carrier frequency. To avoid over modulation of the carrier, a protection of the modulating signal is fed back from the T20 through the AMC circuit, Q233 and Q234, to control the gain of IC20 and sets the maximum level of modulation. Form the center tab of RV23 and Q233 the feedback signal is rectified by diode D233, filtered by C233, and supplied the Q234. The collector of Q234 is tied directly TX audio input to control gain. That is, when the audio output is higher that the preset level of RV23, the information is reflected through Q233 and Q234, reducing the gain of IC20

16 Receiver Overload protection is provided to receiver s semiconductors by diode D0. These diodes have a little effect on the incoming signal from another CB station; they protect the receiver from stray transmitter energy. In the receiver mode of operation, Q923 transistor is turned on. Also bias voltage is applied to Q0, Q02, Q03, Q06. Q0 is a 27MHz RF input amplifier, and any excessive input signal is limited by diode D0. CB receiver is dual conversion super-heterodyne type with the first IF 0.695MHz and the second IF 455KHz. Receiver is separated to blocks, st IF section and 2 nd IF section. The PLL synthesizer supplies st local frequency 6.270MHz ~ 6.70MHz. The amplified 27MHz is mixed. With the provide st local frequencies Q02, Q03 mixes the incoming RF signal to generate st IF signal. The resulting first IF is 0.695MHz. Q02 and Q03 is the first converter, and 0.695MHz is sharply filtered by L08 and crystal filter CF0. The first IF is again mixed with a second local oscillator of 0.24MHz. With the 0.240MHz signal, IC0 FM IF IC converts the incoming signals to generate 2 nd IF signal and recovered audio signals. 2 nd IF is filtered by a razor sharp ceramic filter CF0 coupled. The 455KHz signal from the 2 nd IF filter was amplified and limits internally. After amplification the signals fed to the quardrature detector loop L09. Then could see the recovered signals Pin of IC0. With the amplitude of recovered signals, Q5 serves as an amplifier. AM signals from the Pin 6 of IC0 were tapped with C6 and amplified two-stage amplifier Q6, Q62. Q6 is a first 455KHz amplifier, and the Q6 being the last amplifier. D06 is a detector diode witch produce audio signal as well as negative DC voltage for AGC action. The negative voltage also provides forward biasing to the emitter of ANL clipping transistor Q64. The biasing voltage has a time constant determined R74 and C76. Therefore any sharp negative going pulse from D6 will back bias Q64 and clipped. The way to recover the AM information audio is envelope detector.

17 5. Test Equipment Setup and Alignment Instructions 5- General Section 5-- Test Equipment Required DC power supply(3.8v/3a) DC Voltmeter or Oscilloscope RF attenuator (30dB) 5--2 Alignment Procedure Step Setting Connection Adjuster Adjust for RX VCO voltage Adj. Channel & Frequency : CH, MHz Mic : Receive Volume : Optional Squelch : Optional RF Gain : Optional Mic Gain : Optional DC voltmeter to VCO Test point (Figure ) L30.5~2.0 V DC 2 TX VCO voltage Adj. Channel & Frequency : CH, MHz Mic : Transmit(No Mod) Volume : Optional Squelch : Optional RF Gain : Optional Mic Gain : Optional DC voltmeter to VCO Test point (Figure ) L30.5~2.0 V DC Figure

18 5-2 Transmitter Section 5-2- Test Equipment Required RF Power Meter 50 ohms load (non-inductive) RF attenuator (30dB) Oscilloscope Audio generator Alignment Procedure DC power supply(3.8v/3a) Spectrum analyzer Frequency counter Coupler Modulation meter Step Setting Connection Adjuster Adjust for RF Power Adj. Channel : 9CH Function : AM or FM Mode CB/ANL Off/DX MIC : Transmit Volume : Optional Squelch : Optional RF Gain : Optional MIC Gain : Minimum 2 Frequency Adj. Channel & Frequency : 9CH, MHz Function : AM or FM Mode CB/ANL Off/DX Mic : Transmit(No Mod) Volume : Optional Squelch : Optional RF Gain : Optional MIC Gain : Optional 3 AM Modulation Adj. Channel & Frequency : 9CH, 27.85MHz MIC: Transmit Function : AM Mode CB/ANL Off/DX Volume : Optional Squelch : Optional RF Gain : Optional MIC Gain : Max Connect dummy load and RF Power Meter to the EXT ANT connector on the set(figure 3) Connect dummy load and Frequency Counter through Coupler to RF Power Meter. Connect RF Power Meter to EXT-ANT connector on the set(figure 2). Connection the audio generator (set to KHz)to the microphone. Connect the modulation meter through the RF attenuator to the ANT Connector. Adjust the audio signal level to obtain by 50% modulation. When you increase the audio signal by 20 db, the modulation should not exceed 95% Modulation(Figure 3). L302 L70 L702 L703 CT302 Maximum indication on the Power Meter(4.0W). If indication is not in 4W range, ACP Adjustment(R V9) Be sure that the indication of the transmitter frequency is 27.85MHz ±300 Hz on the Frequency Counter RV23 85% ~ 95%

19 4 FM Deviation Adj. Channel & Frequency : 9CH, 27.85MHz MIC : Transmit Function : FM Mode CB/ANL Off/DX Volume : Optional Squelch : Optional RF Gain : Optional MIC Gain : Max 5 TX Signal Meter Adj. Channel & Frequency : 9CH, 27.85MHz MIC : Transmit Function : FM Mode CB/ANL Off/DX Volume : Optional Squelch : Optional RF Gain : Optional MIC Gain : Minimum Connection the audio generator (set to KHz)to the microphone. Connect the modulation meter through the RF attenuator to the ANT Connector. Adjust the audio signal level to obtain by KHz deviation. When you increase the audio signal by 20 db, the deviation should not exceed 2.0KHz deviation(figure 3). Connected through Dummy load to RF Power Meter. Connect RF Power to EXT- ANT connector on the set(figure 2) RV40.8KHz ~ 2.0KHz RV57 Adjust for 4 watts RF output power on the signal meter. Figure 2 Figure 3

20 5-3 Receiver Section 5-3- Test Equipment Required Standard Signal Generator(SSG) DC power supply(3.8v/3a) AC Level Meter Distortion Meter Oscilloscope SINAD Meter 8 ohm Dummy Load Alignment Procedure Step Setting Connection Adjuster Adjust for AM Audio Output Adj. Channel & Frequency : 9CH, 27.85MHz MIC : Receive Function : AM Mode CB/ANL Off/DX Volume : Full clockwise Squelch : Turn to counter clockwise RF Gain : Full clockwise 2 FM Audio Output Adj. Channel & Frequency : 9CH, 27.85MHz MIC : Receive Function : FM Mode CB/ANL Off/DX Volume : Full clockwise Squelch : Turn to counter clockwise RF Gain : Full clockwise 3 Squelch Adj. Channel & Frequency : 9CH, 27.85MHz MIC : Receive Function : FM Mode CB/ANL Off/DX SSG : 27.85MHz, KHz, 00uV,.5KHz Dev. Volume : Full clockwise Squelch : Full clockwise clockwise RF Gain : Full clockwise Connect RF Signal Generator to EXT-ANT Connector. Connect AC Level Meter and Distortion Meter and SINAD Meter across EXT SPK jack with 8 ohm Dummy Load(Figure 4) Connect RF Signal Generator to EXT-ANT Connector. Connect AC Level Meter and Distortion Meter and SINAD Meter across EXT SPK jack with 8 ohm Dummy Load(Figure 4) Connect RF Signal Generator to EXT-ANT Connector. Connect AC Level Meter and Distortion Meter and SINAD Meter across EXT SPK jack with 8 ohm Dummy Load(Figure 5) L0 L03 L04 L05 L07 L08 L2 L09 RV3 Maximum indication on AC Level Meter. Reduce output from SSG until the audio output becomes about 2V. Maximum indication on AC Level Meter. Reduce output from SSG until the audio output becomes about 2V. Adjust until the audio output appears.

21 4 RX Signal Meter Adj. Channel & Frequency : 9CH, 27.85MHz MIC : Receive Function : FM Mode CB/ANL Off/DX SSG : 27.85MHz, KHz, 00uV,.5KHz Dev. Volume : Full clockwise Squelch : Full clockwise clockwise RF Gain : Full clockwise Connect RF Signal Generator to EXT-ANT Connector. Connect AC Level Meter and Distortion Meter and SINAD Meter across EXT SPK jack with 8 ohm Dummy Load(Figure 4) RV572 Adjust for S-9 on the signal meter. Figure 4

22 SECTION3 PART LIST Q'ty ITEM NAME & DESCRIPTION VENDOE CODE MAKER VENDOR ASS'Y TCB TCB Location NO REMARKS B * ELECT Parts COVER ASS'Y SPEAKER 77AR000-8P-4D29 ASAHI MAN SPK20 ECO WIRE HARNESS PH-2PIN TO OPEN UL007 #26 L=200mm FINE FINE MAN J204 ESCUTCHEON ASS'Y 3 PCB VOLUME LAYER MULTI MAN 4 PCB CHANNEL LAYER MULTI MAN 5 FILM RESISTOR 0K /8W 5% ST MAN R400 6 VR A0K SJ6VS 25SK A0K SEJIN SEJIN MAN VR0 ECO VR B50K SJ6V 20SK B50K SEJIN SEJIN MAN 2 2 VR03, VR40 ECO VR B0K SJ6V 20SK B0K SEJIN SEJIN MAN VR02 ECO SW ROTARY SJ-PS20 20SK SEJIN SEJIN MAN SW8 ECO COIL AXIAL 6.8UH LAL03TB6R8K MAN 4 4 L50, L502, L504, L506 WAFER 3PIN PH-3A 80C FINE FINE MAN 2 2 J03, J04 2 WIRE HARNESS PH-3PIN*2 UL007 #26 L=30MM FINE FINE MAN J J04 3 WAFER 6PIN PH-6A 80C FINE FINE MAN J0 4 WIRE HARNESS PH-6PIN*2 UL2468 #26 L=70MM FINE FINE MAN J0 --- J02 ECO WIRE HARNESS PH-6PIN TO OPEN UL007 #26 L=70MM FINE FINE MAN J502 6 CONNECTOR SOCKET N-6-6(RPCB)-M SAMWOO MAN J50 7 HEAT SINK TUBE diameter 4 mm x 5mm MAN 6 6 ECO LCD PCB ASS'Y 8 PCB LED FR-4 2 LAYER.0T MULTI MAN 9 PCB DISPLAY (FRONT) FR-4 2 LAYER.6T MULTI MAN 20 CHIP RESISTOR K /6W 5% T 608 PHILIPS SMD 2 2 R80, R88 2 CHIP RESISTOR 0K /6W 5% T 608 PHILIPS SMD 5 5 R805, R806, R807, R8, R84 22 CHIP RESISTOR 00K /6W 5% T 608 PHILIPS SMD R CHIP RESISTOR M /6W 5% T 608 PHILIPS SMD R CHIP RESISTOR 2.2K /6W 5% T 608 PHILIPS SMD 6 6 R209, R832, R833, R834, R835, R CHIP RESISTOR 220K /6W 5% T 608 PHILIPS SMD R CHIP RESISTOR 47K /6W 5% T 608 PHILIPS SMD 6 6 R82, R86, R83, R85, R852, R853, R854, R855, R856, R857, R858, R859, R86, R862, R863, R CHIP CERAMIC 0.0UF 608 PHILIPS SMD 2 2 C806, C CHIP CERAMIC UF 608 PHILIPS SMD C CHIP CERAMIC 68PF 608 PHILIPS SMD 2 2 C80, C CHIP TANTAL 0uF/6V A TYPE SMD C8 3 CHIP TRANSISTOR KRA0S SOT-23 KEC SMD Q CHIP TRANSISTOR KRC0S SOT-23 KEC SMD Q CHIP TRANSISTOR KRC04S SOT-23 KEC SMD Q80 34 LED VOL BACK LIGHT CHIP LED IWS-64-BXWF ITSWELL SMD 4 4 D954, D955, D956, D957, D958, D959, D960, D963, D964, D965, D967, D968, D95, D952 ECO ECO ECO IC EEPROM AT24C02 ATMEL SMD IC IC CPU TMP87PP2DF TOSHIBA SMD IC80 ECO

23 37 LCD DISPLAY SDMA2295B FOR TCB-880 SANTECH MAN LCD80 38 SW TACT SKTS-02A SEKWANG SEKWANG MAN 8 8 SW80, SW802, SW803, SW804, SW805, SW806, SW807, SW SW SLIIDE SKS-2202T SEKWANG SEKWANG MAN 3 3 SW0, SW02, SW20 40 RESONATOR 4.0MHz ZTA4.00MG D.TRON D.TRON MAN X80 MAIN BODY ASS'Y 42 CONNECTOR CH-239(A)-M SAMWOO MAN J70 ECO TRANSISTOR KTA658 KEC MAN Q9 44 TRANSISTOR 2SC2078 SANYO YANG WON MAN Q IC KIA727AP KEC MAN IC20 46 POWER CODE 2PIN PLUG ASS'Y FINE FINE MAN J900 MAIN PCB AUTO ASS'Y 47 PCB MAIN FR-4 / R- MULTI SMD ECO CHIP RESISTOR 0 /6W 5% T 608 PHILIPS SMD 3 3 R08, R37, R20 ECO CHIP RESISTOR /6W 5% T 608 PHILIPS SMD R CHIP RESISTOR 0 /6W 5% T 608 PHILIPS SMD 2 2 R33, R30 50 CHIP RESISTOR 00 /6W 5% T 608 PHILIPS SMD 6 6 R04, R09, R34, R68, R34, R40 5 CHIP RESISTOR K /6W 5% T 608 PHILIPS SMD 9 9 R26, R64, R82, R83, R87, R200, R222, R234, R238, R308, R32, R40, R50, R57, R572, R955, R956, R957, R958 ECO CHIP RESISTOR 0K /6W 5% T 608 PHILIPS SMD 6 6 R23, R57, R6, R85, R35, R32, R322, R323, R324, R42, R43, R44, R703, R82, R823, R94 ECO ECO CHIP RESISTOR 00K /6W 5% T 608 PHILIPS SMD 9 9 R40, R42, R59, R86, R88, R202, R233, R309, R3 54 CHIP RESISTOR 2M /6W 5% T 608 PHILIPS SMD R405 ECO ECO CHIP RESISTOR.2K /6W 5% T 608 PHILIPS SMD R8 56 CHIP RESISTOR.5K /6W 5% T 608 PHILIPS SMD 2 2 R742, R CHIP RESISTOR 5K /6W 5% T 608 PHILIPS SMD 3 3 R55, R66, R CHIP RESISTOR 50K /6W 5% T 608 PHILIPS SMD R70 59 CHIP RESISTOR 2.2 /6W 5% T 608 PHILIPS SMD R7 60 CHIP RESISTOR 220 /6W 5% T 608 PHILIPS SMD 2 2 R69, R702 R0, R3, R203, R237, R307, R402, 6 CHIP RESISTOR 2.2K /6W 5% T 608 PHILIPS SMD 3 3 R87, R822, R92, R922, R923, R96, ECO CHIP RESISTOR 22K /6W 5% T 608 PHILIPS SMD 7 7 R963 R32, R62, R72, R75, R302, R304, R CHIP RESISTOR 220K /6W 5% T 608 PHILIPS SMD 2 2 R7, R77 64 CHIP RESISTOR 2.2M /6W 5% T 608 SMD R53 65 CHIP RESISTOR 2.7K /6W 5% T 608 PHILIPS SMD R67 66 CHIP RESISTOR 27K /6W 5% T 608 PHILIPS SMD 2 2 R02, R CHIP RESISTOR 33 /6W 5% T 608 PHILIPS SMD R204 ECO CHIP RESISTOR 33K /6W 5% T 608 PHILIPS SMD 2 2 R404, R CHIP RESISTOR 3.3M /6W 5% T 608 PHILIPS SMD R35 70 CHIP RESISTOR 390 /6W 5% T 608 PHILIPS SMD R56 7 CHIP RESISTOR 39K /6W 5% T 608 PHILIPS SMD 2 2 R63, R CHIP RESISTOR 47 /6W 5% T 608 PHILIPS SMD 3 3 R84, R705, R93

24 73 CHIP RESISTOR 470 /6W 5% T 608 PHILIPS SMD 6 6 R0, R05, R06, R65, R236, R93 74 CHIP RESISTOR 4.7K /6W 5% T 608 PHILIPS SMD 7 7 R38, R223, R406, R704, R95, R96, R CHIP RESISTOR 47K /6W 5% T 608 PHILIPS SMD 9 9 R22, R39, R74, R76, R300, R303, R409, R4, R45 76 CHIP RESISTOR 470K /6W 5% T 608 PHILIPS SMD 2 2 R54, R CHIP RESISTOR 5.6K /6W 5% T 608 PHILIPS SMD R CHIP RESISTOR 56K /6W 5% T 608 PHILIPS SMD 2 2 R03, R33 79 CHIP RESISTOR 6.8K /6W 5% T 608 PHILIPS SMD R52 80 CHIP RESISTOR 68K /6W 5% T 608 PHILIPS SMD R89 8 CHIP RESISTOR 82K /6W 5% T 608 PHILIPS SMD R73 ECO ECO ECO ECO THERMISTOR 00 OHM NCP8XF0J03RB MURATA SMD TH3 ECO ECO THERMISTOR 0K OHM NCP8XH03J03RB MURATA SMD TH0 ECO CHIP CERAMIC 0.00UF 608 PHILIPS/SAMSUNG SMD 4 4 C8, C230, C239, C404 ECO CHIP CERAMIC 0.0UF 608 PHILIPS/SAMSUNG SMD C, C4, C5, C6, C7, C8, C53, C54, C56, C57, C6, C62, C83, C84, C20, C23, C234, C235, C323, C42, C45, C50, C502, C503, C504, C506, C703, C704, C708, C73, C90, C902, C903, C9, C922, C924, C CHIP CERAMIC 0.UF 608 PHILIPS/SAMSUNG SMD C22, C23, C32, C34, C35, C37, C38, C68, C69, C80, C86, C205, C229, C236, C308, C322, C325, C330, ECO C405, C43, C57, C CHIP CERAMIC UF 608 PHILIPS/SAMSUNG SMD 5 5 C59, C40, C402, C96, C CHIP CERAMIC 0.022UF 608 PHILIPS/SAMSUNG SMD 5 5 C66, C203, C24, C238, C CHIP CERAMIC 0.047UF 608 PHILIPS/SAMSUNG SMD 8 8 C52, C63, C64, C65, C22, C30, C72, C94 90 CHIP CERAMIC 0.068UF 608 PHILIPS/SAMSUNG SMD C40 9 CHIP CERAMIC 0PF 608 PHILIPS/SAMSUNG SMD 3 3 C96, C3, C CHIP CERAMIC 00PF 608 PHILIPS/SAMSUNG SMD C0, C09, C303, C304, C305, C33, C34, C7, C72, C73, C733 ECO CHIP CERAMIC 50PF 608 PHILIPS/SAMSUNG SMD 4 4 C02, C04, C06, C3 94 CHIP CERAMIC 6PF 608 PHILIPS/SAMSUNG SMD C36 95 CHIP CERAMIC 8PF 608 PHILIPS/SAMSUNG SMD 2 2 C2, C9 96 CHIP CERAMIC 80PF 608 PHILIPS/SAMSUNG SMD 2 2 C70, C CHIP CERAMIC 2PF 608 PHILIPS/SAMSUNG SMD C CHIP CERAMIC 22PF 608 PHILIPS/SAMSUNG SMD 2 2 C32, C CHIP CERAMIC 220PF 608 PHILIPS/SAMSUNG SMD 6 6 C204, C2, C329, C77, C79, C724 ECO CHIP CERAMIC 3PF 608 PHILIPS/SAMSUNG SMD C39 0 CHIP CERAMIC 30PF 608 PHILIPS/SAMSUNG SMD C35 02 CHIP CERAMIC 33PF 608 PHILIPS/SAMSUNG SMD 3 3 C08, C302, C38 03 CHIP CERAMIC 330PF 608 PHILIPS/SAMSUNG SMD 6 6 C74, C75, C723, C725, C726, C CHIP CERAMIC 39PF 608 PHILIPS/SAMSUNG SMD C CHIP CERAMIC 9PF 608 PHILIPS/SAMSUNG SMD C0 06 CHIP CERAMIC 47PF 608 PHILIPS/SAMSUNG SMD 7 7 C03, C05, C07, C82, C328, C720, C CHIP CERAMIC 470PF 608 PHILIPS/SAMSUNG SMD C78 08 CHIP CERAMIC 56PF 608 PHILIPS/SAMSUNG SMD C30

25 09 CHIP CERAMIC 6PF 608 PHILIPS/SAMSUNG SMD 2 2 C37, C32 0 CHIP CERAMIC 68PF 608 PHILIPS/SAMSUNG SMD 3 3 C97,C3, C732 CHIP CERAMIC 680PF 608 PHILIPS/SAMSUNG SMD C44 2 CHIP CERAMIC 82PF 608 PHILIPS/SAMSUNG SMD 2 2 C406, C707 3 CHIP CERAMIC 8PF 608 PHILIPS/SAMSUNG SMD C326 4 CHIP TANTAL 2.2uF/6V A TYPE SMD C30 ECO CHIP TRANSISTOR KTK2 SOT-23 KEC SMD 2 2 Q02, Q03 6 CHIP TRANSISTOR KRA02S SOT-23 KEC SMD Q63 7 CHIP TRANSISTOR KRC0S SOT-23 KEC SMD 0 0 Q04, Q05, Q53, Q222, Q305, Q3, Q32, Q33, Q953, Q954 ECO CHIP TRANSISTOR KRC02S SOT-23 KEC SMD Q94 9 CHIP TRANSISTOR KRC0S SOT-23 KEC SMD 3 3 Q2, Q960, Q96 ECO CHIP TRANSISTOR KRCS SOT-23 KEC SMD 4 4 Q202,Q502, Q962, Q963 ECO CHIP TRANSISTOR KRC2S SOT-23 KEC SMD 5 5 Q22, Q52, Q54, Q93, Q CHIP TRANSISTOR KTA504S SOT-23 KEC SMD 4 4 Q64, Q233, Q92, Q CHIP TRANSISTOR KTC3875S SOT-23 KEC SMD 9 9 Q5, Q8, Q82, Q83, Q234, Q742, Q92, Q923, Q93 24 CHIP TRANSISTOR KTC3880S SOT-23 KEC SMD 8 8 Q0, Q6, Q62, Q30, Q302, Q303, Q70, Q DIODE ZENER Z02W5.V SOT-23 KEC SMD DZ8 26 DIODE ZENER Z02W5.6V SOT-23 KEC SMD DZ93 27 DIODE ZENER Z02W8.2V SOT-23 KEC SMD DZ92 28 DIODE SI CHIP KDS8 SOT-23 KEC SMD D40 29 DIODE SI CHIP KDS84 SOT-23 KEC SMD 4 4 D02, D03, D05, D7, D80, D8, D233, D57, D572, D74, D742, D92, D96, D962 ECO DIODE SI CHIP KDS226 SOT-23 KEC SMD D0 3 DIODE VARICAP KDV25S SOT-23 KEC SMD 2 2 D30, D IC PLL LC752NM SANYO YANG WON SMD IC30 33 IC OP AMP KIA358F KEC SMD IC02 34 IC OP AMP KIA4558F KEC SMD IC40 35 IC FM IF TK4489V TOKO SMD IC0 MAIN PCB MANUAL ASS'Y 35 FILM RESISTOR 2.2 /2W 5% ST MINI MAN R72 36 FILM RESISTOR 0 /2W 5% ST MINI MAN R92 37 FILM RESISTOR 470 /2W 5% ST MINI MAN 2 2 R95, R954 ECO FILM RESISTOR 4.7K /2W 5% ST MINI MAN R73 39 FILM RESISTOR K W 5% ST MINI MAN 2 2 R952, R953 ECO METAL OXID RESISTOR 0 2W 5% ST BULK MAN R208 4 RESISTOR SEMI 00KB PH0630NOX0X-HA-B04 SOUNDWELL MAN 2 2 RV57, RV RESISTOR SEMI 2.2KB PH0630NOX0X-HA-B222 SOUNDWELL MAN RV23 43 RESISTOR SEMI 22KB PH0630NOX0X-HA-B223 SOUNDWELL MAN RV40 44 RESISTOR SEMI 4.7KB PH0630NOX0X-HA-B472 SOUNDWELL MAN 2 2 RV3, RV9 45 ELECT CAPACITOR UF KR-6V00MA 5X DONGXIANG MAN 3 3 C67, C407, C ELECT CAPACITOR 0UF KR-6V00MA 5X DONGXIANG MAN 8 8 C232, C33, C332, C333, C93, C92, C93,C964 ECO ELECT CAPACITOR 00UF KR3-6V0MA 5X DONGXIANG MAN 2 2 C82, C ELECT CAPACITOR 000UF KR-6V02MF 0X20 DONGXIANG MAN 4 4 C207, C23, C27, C92

26 49 ELECT CAPACITOR 0.22UF KR-6VR22MA 5X DONGXIANG MAN C24 50 ELECT CAPACITOR 2.2UF KR-6V2R2MA 5X DONGXIANG MAN C74 5 ELECT CAPACITOR 22UF KR-6V220MA 5X DONGXIANG MAN C22 ECO ELECT CAPACITOR 220UF KR-6V22MA 5X DONGXIANG MAN 3 3 C20, C953, C ELECT CAPACITOR 33UF KR-6V330MA 5X DONGXIANG MAN C ELECT CAPACITOR 4.7UF KR-6V4R7MA 5X DONGXIANG MAN 4 4 C208, C4, C960, C963 ECO ELECT CAPACITOR 47UF KR-6V470MA 5X DONGXIANG MAN 5 5 C43, C85, C206, C233, C DISK 00P C DIP TRIMMER 20PF KCVN620 FOKITS MAN CT30 ECO TRANSFORMER CHOKE T FINE FINE MAN T90 ECO TRANSFORMER EI-24(MOD.) T2 FINE FINE MAN T20 ECO IFT COIL RF FREE TX 27MHz TX FINE FINE MAN 2 2 L70, L702 6 IFT COIL 37MHz TX TX2 FINE FINE MAN L IFT COIL 27MHz-B RX FINE FINE MAN L0 63 IFT COIL 27MHz RX (7RC) RX2 FINE FINE MAN L07 64 IFT COIL 0.7MHz RX-B RX3 FINE FINE MAN L08 65 IFT COIL DETECTOR 455KHz RX4 FINE FINE MAN L09 66 IFT COIL 455KHz-B RX5 FINE FINE MAN L2 67 IFT COIL 6.5MHz VCO VCO FINE FINE MAN L30 68 IFT COIL 5MHz TX/RX VCO2 FINE FINE MAN L COIL AXIAL.5UH LAL03TRR5K MAN 2 2 L02, L06 70 COIL AXIAL 6.8UH LAL03TB6R8K MAN L706 7 COIL SPRING 2.5X0.8X7T:R 0.UH FINE FINE MAN L COIL SPRING 4X0.5X6T:R FINE FINE MAN L72 73 COIL SPRING 4X0.5X7T:R FINE FINE MAN L73 74 COIL SPRING 4X0.5X0T:R FINE FINE MAN L74 75 COIL SPRING 6X0.8X5T:R 0.225UH FINE FINE MAN L7 76 COIL SPRING 5X0.6X3.5T:R 0.5UH FINE FINE MAN L CORE SPRING 5.5TX0.45XM5E X UH FINE FINE MAN 3 3 L03, L04, L05 78 COIL CHOKE 6UH BOBBIN CORE FINE FINE MAN L20 79 TRANSISTOR KTC006 KEC MAN Q TRANSISTOR KTA24 KEC MAN 3 3 Q22, Q95, Q952 ECO DIODE N4004T/R 400V A MAN 2 2 D232, D90 82 DIODE N60 PYUNGCHANG MAN D6 83 CRYSTAL 0.240MHz 32PF:30PPM HC-49/U D.TRON MAN X0 84 CRYSTAL 4.50MHZ 2PF:30PPM HC-49U D.TRON MAN X30 85 FILTER CRYSTAL 0L08A 0.695MHZ 49/T-3L D.TRON MAN XF0 86 FILTER CERAMIC LT455HTW D.TRON MAN CF0 ECO JACK MINI SKJS-206 SEKWANG SEKWANG MAN J JACK DC SKJS-358 SEKWANG SEKWANG MAN 2 2 J20, J WAFER 2PIN PH-2A 80C FINE FINE MAN J WAFER 6PIN PH-6A 80C FINE FINE MAN J503 9 WAFER 6PIN PH-6A 80C FINE FINE MAN J02 92 SW ROTARY SJ-PS20 20SK SEJIN SEJIN MAN SW82 ECO Mechanical PARTS * COVER ASS'Y ESCUTCHEON ABS (SILVER SPRAY) Bonso Front case plastic ESCUTCHEON ABS (BLACK SPRAY) 2 WINDOW ACRYL Bonso -

27 3 VOL KNOB ABS (SILVER SPRAY) Bonso 2 For Vol & Ch VOL KNOB ABS (BLACK COLOR) 2 4 SQ KNOB ABS (SILVER SPRAY) Bonso 4 For Sq, Rf, Mic gian, Q up/down SQ KNOB ABS (BLACK COLOR) 4 5 ILLUMINATOR(VOL) ACRYL, CLEAR Bonso For Vol 6 ILLUMINATOR(CH) ACRYL, CLEAR Bonso For Ch 7 ILLUMINATOR(SQ) ACRYL, CLEAR Bonso 4 4 For Sq, Rf, Mic gian, Q up/down 8 ILLUMINATOR(PA) ACRYL, CLEAR Bonso For Pa/off/dx 9 KEY PAD 6 SILICONE, Hs=60, PU Coating ECO Hankyung - 0 KEY PAD 2 SILICONE, Hs=60, PU Coating ECO Hankyung - RING NUT BsBm, Ni plating Hankyung 6 6 For Vol 2 SCREW MACH(+) M2.6*5L, NATURAL, FH Bonso 4 4 Escutcheon + Main body mounting 3 Vol illuminator sticker wood free paper, 58*7* 0ECO Bonso For Vol 4 Sq illuminator sticker wood free paper, 46*7*0. ECO Bonso 5 5 For Sq illuminator & Ch illuminator * UPPER COVER ASS'Y 5 UPPER COVER SPC+BLACK coating Hankyung - 6 FELT(COVER) 8*46*0.3t, BLACK Hankyung 2 2 For upper cover adhesive(location: side) 7 CUSHION 20*24*4.0t, EVA SPONGE, BLACK Hankyung For upper cover adhesive(location: center) 8 SCREW Mach(+) M3*8L-TAPTITE, BLACK, B ECO Bonso 5 5 Upper cover + Main body mounting * BOTTOM COVER ASS'Y 9 BOTTOM COVER SPC+BLACK coating Hankyung - 20 BRACKET(SPK) SPC,.6t Hankyung 3 3 For speaker 2 FELT(SPK) Φ76*0.2t, BLACK Hankyung For speaker 22 FELT(COVER) 8*46*0.3t, BLACK Hankyung 2 2 For bottom cover adhesive(location: side) 23 SCREW Mach(+) M3*8L-TAPTITE, BLACK, B ECO same as item.8 Bonso 3 3 Bracket(spk) mounting 24 SCREW Mach(+) M3*8L-TAPTITE, BLACK, B ECO same as item.8 Bonso Bottom cover + Main body mounting(location: back) * FRONT PCB ASS'Y 25 REFLECTOR(HOLDER) ACRYL Bonso For diffuser 26 DIFFUSER ACRYL, 45.8*9.3*2.4t Bonso For diffuser 27 LCD HOUSING SPTE, 0.3t Hankyung For diffuser 28 WHITE SHEET Hankyung For diffuser 29 ZEBRA 30*9.2*2.0t, CARBON SILICONE Hankyung For diffuser 30 FELT(S/W) Φ4.5*Φ7*0.3t, BLACK ECO Hankyung SCREW Mach(+) M2.6*8L-TAPTITE, Ni platingeco Bonso 2 2 Front Pcb mounting * MAIN PCB ASS'Y 32 MAIN BODY EGI,.0t Hankyung - 33 HEAT SINK AL, 2.0t Hankyung - 34 TX SHIELD CAN() SPTE, 0.3t Hankyung For Main PCB(location: lower) 35 TX SHIELD CAN(2) SPTE, 0.3t Hankyung For Main PCB(location: upper) 36 VCO SHIELD CAN SPTE, 0.3t Hankyung For Vco 37 SHIELD COVER SPTE, 0.3t ECO Hankyung For TX shield can(2) 38 BUSH NYLON66+GRASS 5% Hankyung For TR 39 ANT. TERMINAL SPTE, 0.2t Hankyung For Antenna 40 MICA MICA, 0.6t Hankyung For TR 4 SCREW Mach(+) 3*8L-TAPTITE, Black, BH ECO same as item.8 Bonso 4 4 Main PCB + Main body mounting 42 SCREW MACH(+) M3*0L, Black, BH ECO Bonso 3 3 TR mounting 43 SPRING WASHER M3 Bonso 3 3 TR mounting 44 NUT M3, SS4 Bonso 3 3 TR mounting 45 CORD STOPPER PP Hankyung Wire stopper 46 Cu Tape- Cu 63.6*9*0.t ECO Bonso For TX shield can() 47 Cu Tape-2 Cu 77*5*0.t ECO Bonso For TX shield can()

28 * ACCESSORY MIC ASS'Y Hankyung 2 BRACKET SET ECO Hankyung 3 STUD BOLT ABS, M6*8L, BLACK Hankyung BRACKET(MIC) SUS304,.0t Hankyung 5 PACKING RUBBER PACKING RUBBER Hankyung SCREW Mach(+) M3*8L, Taptite, Black, BH Bonso SCREW TAP(+) 5*2L-S, ZN PLATING, TH Bonso STAR WASHER-S M3, NI PLATING, B type Bonso STAR WASHER-L M5, NI PLATING, B type Bonso POWER CODE 2PIN RECEPRACLE ASS'Y FINE * PACKING ASS'Y OWNER'S MANUAL BONSO 2 GIFTBOX SWE 2.0T BONSO 3 INNER BOX A SWE 2.0T, WHITE for RADIO BONSO 4 INNER BOX B SWE 2.0T, WHITE for ACCESSORY BONSO 5 WARNING LABEL BONSO 6 CODE 39 SERIAL NO. STICKER BONSO OUT BOX DWE 7.0T BONSO 8 SILICA-GEL g BONSO 9 OPP TAPE 50MM BONSO 0 COLOR TYPE STICKER S for SILVER UNIT BONSO COLOR TYPE STICKER B for BLACK UNIT BONSO POLY BAG for RADIO 220*300mm BONSO 2 POLY BAG for ACCESSORY 80*00mm BONSO POLY BAG for POWER CODE 50*200mm BONSO

29 SECTION4 MECHANICAL DISASSEMBLY x6 x3 x3 x x4 8 x x x3 x2 x2 x3 x x x2 x x

30 NO PART NAME DESCRIPTION QTY Upper cover Bottom cover Bracket (Set) Escutcheon Vol knob Sp knob illuminator (vol) illuminator (sq) Ring nut Nut for Mic connector Washer for Mic connector Key pad-6 Key pad-2 Felt (s/w) Screw Mach (+) Window Main body Speaker Bracket (spk) Felt (cover) Felt (spk) TX shield can (2) Shield cover Stud bolt Packing rubber TX shield can () VCO shield can Main PCB Front PCB Screw Mach(+) Washer for Ant connector Nut for Ant connector Ant terminal Mica Cushion Screw Mach(+) Screw Mach(+) Cord stopper LCD Bracket Bush Spring washer Nut Screw Tap (+) illuminator (ch) illuminator (pa) Screw Mach(+) Heat sink Mic connector Ant connector S/W PCB Cu tape- Cu tape-2 Zebra White sheet Diffuser Lens Reflector LCD TR SPC 0.8t SPC 0.8t SPC.6t ABS ABS ABS Acryl Acryl BsBm Silicone Silicone 0.3t M2.6x8L_taptite,BH Acryl EGI.0t SPC.6t 0.3t 0.3t SPTE 0.3t SPTE 0.3t ABS SPTE 0.3t SPTE 0.3t M3x8L_taptite,BH SPTE 0.2t 0.4t EVA sponge M3x8L_taptite,BH M2.6x5L,FH PVC SPTE 0.3t Nylon66+Grass5% M3 M3 M3x8L_taptite,BH Acryl Acryl M3x0L,BH AL Silicone PE, 0.t Acryl Acryl For front pcb For front pcb For speaker For escutcheon For TR For TR For TR For cover For TR For TR REMARK

31 SECTION5 BOARD LAYOUT 5- Main PCB (Top side)

32 Main PCB (Bottom side)

33 5-2 Front PCB (Top side)

34 Front PCB (Bottom side)

35 5-3 LED PCB (Top side)

36 LED PCB (Bottom side)

37 5-4 Volume PCB

38 5-5 MIC PCB

39 SECTION6 BLOCK DIAGRAM

40 SECTION7 SCHEMATIC