PTM-3245 Power Amplifier. Installation Manual

Transcription

1 PTM-3245 Power Amplifier Installation Manual

2 Audio Design Associates Table of Contents Figure 1: PTM-3245 Front and ear Panel Drawings Welcome and Thank You Unpacking and Inspecting the PTM Placement Guidelines for the PTM Input Connections to the PTM Speaker Connections to the PTM Providing Power to the PTM Maintaining Your ADA Amplifier AC ine Voltage Troubleshooting Chart If All Else Fails Call Us for Help Warranty and eturning Your PTM-3245 to ADA PTM-3245 Specifications Features of the ADA PTM-3245 Power Amplifier Thirty-two channels of Amplification Powers up to Sixteen Zones 40 Watts Per Channel into 8 Ω, ess than 0.08% THD 60 Watts Per Channel into 4 Ω, ess than 0.1% THD Stable for ong-term 2 Ω Operation to Drive Multiple Speakers Independent Triggering Capability for Each Channel Pair High Current Power Supply Monolithic IC Output Stages ack Mountable ow Noise Fan Cooling for ong Term eliability emovable IEC AC Cord Handcrafted in the U.S.A. HANDCAFTED WITH PIDE IN THE U.S.A. Audio Design Associates Mamaroneck Ave. White Plains, New York (800) HD-AUDIO ( ) 2

3 PTM-3245 Power Switch ack Mount Holes POWE ON OFF PTM-3245 MADE IN U.S.A. IEC 65 AC eceptacle Unterminated Speaker Connector CAUTION ISK OF EECTIC SHOCK DO NOT OPEN ATTENTION! ISQUE DE CHOC EECTIQUE. NE PAS OUVI MADE IN U.S.A. Typical Power: Watts Ultimate Max. Power: 1200 Watts Average Thermal oad: 2048 BTU/Hr PTM Channel Power Amp 1200 WATTS MAX STBY FUSE 115V~ 2/10 ASB ZONE 8 ZONE 7 ZONE 6 ZONE 5 ZONE 4 ZONE 3 ZONE 2 ZONE V~ 1/10 ASB 115V 115 V MAIN FUSE 115V~ 10 ASB 230V 230V~ 5 ASB Warning! Do Not Short Outputs Bypass Trigger Zone Triggers 230V 115 V Zn 5 Zn 6 Zn 13 Zn 14 Gnd Zn 4 Zn 3 Zn 2 Zn 1 Zn 11 Zn 12 Zn 15 Zn 16 Gnd ow Voltage Conversion Switch DC Trigger Activation Switch High Voltage Conversion Switch Zn 10 Zn 9 Zn 8 Zn ZONE ZONE ZONE ZONE ZONE ZONE ZONE 10 Figure 1: ADA PTM-3245 Front and ear Panel Drawings ZONE 9 115V Connect to P-16 Zone Triggers on Suite-16 CAUTION: Disconnect Supply Cord Before Servicing. ATTENTION: Debrancher Avant e Depannage. WANING! isk Of Hazardous Energy! Make Proper Connections. Zones 1-6, 13 & 14 Zones 7-12, 15 & 16 DB-9 Trigger Connectors Zone 11 CA Input Jacks Speaker Connectors Plugged into Zones 1 and 9 3

4 Audio Design Associates Welcome and Thank You for Selecting ADA The ADA PTM-3245 power amplifier is a major breakthrough in power amplifier technology. Hand crafted in the United States to the strict quality and performance standards established by Audio Design Associates, the PTM-3245 is the first thirty-two-channel power amplifier ever designed for multichannel applications. At ADA, we have been designing and building high-performance audio components for use in custom installation applications for over twenty-five years. We re proud to offer this exceptional audio component that will provide many years of enjoyment and dependability. The PTM-3245 can be configured in many different ways and can also be programmed for automated operation. We strongly encourage you to read this entire manual to learn all of its advanced features and capabilities and how to properly connect it to your specific system. Keeping ecords for Future eference ecord the serial number located on the back of your amplifier in the section below. Also note your dealer s name, phone number, and date of purchase. We recommend that you keep your purchase receipt with this manual you may need to refer to this information in the future. Serial #: Phone Number ADA Dealer: Date of Purchase: Unpacking and Inspecting the PTM-3245 Unpack your PTM-3245 from the shipping carton and remove the enclosed AC power cord. While you are unpacking the amplifier, inspect it thoroughly for possible shipping damage. If you see any, contact ADA for further instructions. If possible, save and store both the carton and the packing inserts for possible future transport. Placement Guidelines for Your PTM-3245 Power amplifiers are usually heavier and generate more heat than other components. To avoid damage to the PTM-3245 or other equipment and to reduce risk of fire, follow these guidelines: Do not obstruct the cooling fan or any of the vent openings. Do not block the front of the PTM-3245 behind closed cabinet doors during use. If you have ordered the Select version of the PTM-3245 for shelf mounting, place the PTM-3245 on a separate shelf that will adequately support its weight. 4

5 PTM-3245 ack Mounting Your ADA PTM-3245 When mounted in a in a standard 19" equipment rack, the PTM-3245 chassis and front panel height occupies three rack spaces (5 1/4" or 176 mm). A single standard rack space allows 1-3/4" vertical inches in a 19-inch wide equipment rack. This measurement standard was developed by the EIA (Electronic Industries Association) so manufacturers of electronic components and equipment racks could build products in standardized heights that would fit in a uniform space. We strongly recommend that you have someone hold the PTM-3245 in place while you screw it into the rack. You should use nylon shoulder washers in front and behind the faceplate this will help the unit from scratching and also prevent ground loops. Please call ADA if you need additional advice about the placement or mounting of the PTM Input Connections to the PTM-3245 The input connections on the rear panel of the PTM-3245 are labeled to correspond to sixteen pairs. This makes it easy to identify each two-channel stereo zone. Zones 1-8 are located along the top row and zones 9-16 are located along the bottom row. If you plan to split any stereo pairs for mono operation, we recommend you keep the mono channels grouped for easy identification. equired Input Cables: You will need one shielded interconnect cable terminated with CA plugs on each for each channel of the PTM-3245 you plan to use or a shielded interconnect cable for each two-channel stereo zone. IMPOTANT NOTE: Do not use directional cables when connecting the PTM3245 to a controller or preamplifier. These cables often leave the shield disconnected at one end, which can cause ground loops and subsequent 60 Hz hum. Directional cables are usually labeled with arrows along the insulation to identify which end to connect to the source. ecommendations Before Connecting Inputs eave the AC cord on the PTM-3245 disconnected until you have made all the other connections Make sure that all your cables are long enough so they are not strained or stretched once they are connected. abel the interconnect cable to correspond to the channel of the multiroom controller or preamplifier. This procedure will save time in case troubleshooting is necessary. 5

6 Audio Design Associates Input Connections to the ADA Suite Plug one end of an interconnect cable into Zone 1 white eft () input jack of the amplifier. 2. Plug the other end of this cable into the white eft output jack on the P-16 Audio Preamplifier Board of the Suite Plug one end of an interconnect cable into Zone 1 red ight () input jack on the PTM Plug the other end of this cable into the red right output jack on the P-16 Audio Preamplifier Board on the Suite epeat steps 1-4 for each channel you will be connecting. Input Connections to Other Controllers or Preamplifiers 1. Plug one end of an interconnect cable into Zone 1 white eft () input jack of the amplifier. 2. Plug the other end of this cable into the white eft output jack on the multiroom controller or preamplifier. 3. Plug one end of an interconnect cable into Zone 1 red ight () input jack on the PTM Plug the other end of this cable into the red right output jack on the multiroom controller or preamplifier. 5. epeat steps 1-4 for each two-channel zone you will be connecting P-16 Suite 16 Preamplifier Module P-16 ZONE ZONE PTM-3245 ear Panel Figure 2: Input Connections to the ADA PTM

7 PTM-3245 Terminating the Detachable Speaker Connectors The PTM-3245 includes a detachable high-current speaker connector for each channel. These connectors will accept wire down to AWG 12. To terminate the speaker connectors, follow these steps: 1. Strip just enough insulation from the speaker wire to expose 1/4" of bare wire to fit into the connector. 2. oosen each of the four set screws on each connector with a small (1/8" wide) flat blade screwdriver enough to insert the stripped bare speaker wire. 3. Before inserting the wire into the connector, twist all its strands tightly to prevent strays that could cause a short circuit. You may want to tin the stripped wire with solder to prevent it from fraying and oxidizing. 4. Insert the stripped bare wire into the connector. efer to the drawing below for correct speaker polarity and channel designation. 5. abel the speaker cables to identify them with their corresponding zone. This procedure will save time in case troubleshooting is necessary. 6. Tighten the set screws firmly, but not over tighten. Correct Speaker Polarity is Important Polarity refers to the positive () and negative ( ) speaker connections. Speaker wires are coded with printing or a ridge on the insulation on one of the leads so you know which lead was connected to the and terminals at the other end. This coding will help you keep the and - polarity consistent for all channels of the PTM The detachable speaker connectors used for the PTM-3245 are numbered to correspond to the following code for all channels: Positive () eft Channel Terminal: 1 Negative (-) eft Channel Terminal: 2 Negative (-) ight Channel Terminal: 3 Positive () ight Channel Terminal: 4 Plugging the Speaker Connectors into the PTM-3245 ZONE 9 WANING! isk Of Hazardous Energy! Make Proper Connections. - - ZONE 10 Speaker Connector Terminated and Connected Once you have terminated the speaker wire to the detachable female connectors, plug them into the corresponding male rear panel connectors on the rear panel of the PTM The connectors are keyed so they can only be inserted one way. Never try to force the connectors into place. 7

8 Audio Design Associates AC Power Connections Providing Power to the PTM-3540 Before connecting the AC cord to the PTM-3245, remove power to all the components in your audio system. Plug the female end of the AC cord to the AC receptacle on the rear of the amplifier. Plug the male end of the AC cord to an AC outlet or power strip. Plug the PTM-3245 into the same AC wall outlet or power strip that powers your other audio components, especially the system controller or preamplifier. Having all the audio components on the same power circuit helps prevent hum caused by possible ground loops. The PTM-3245 can be powered on manually from the front panel power switch. Additionally, each channel pair or zone can automatically triggered on with a 12 Vdc trigger from the ADA Suite 16 or other trigger source. There are two rear mounted DB-9 connectors on the rear panel for this purpose. Manually Powering the PTM-3245 To set up the PTM-3250 for manual power control, set the trigger bypass switch to the upper Bypass Trigger position. In this mode, the amplifier can only be turned on and off from the front panel power switch. The PTM-3245 can also be turned on from an external AC source such as the ADA ACC-48 Quad AC Controller. Automated Zone Power Control of the PTM-3245 To set up the PTM-3250 for automated power control for each zone, set the trigger bypass switch to the lower Zone Triggers switch. In this mode, each channel pair or zone can be turned on independently of the other channels with a 9-12 Vdc trigger source applied between ground and the corresponding pins on the DB-9 connectors on the rear panel. If you are controlling the PTM-3245 with the ADA Suite-16 (which other ADA system), you only need to connect a ribbon connector between the Zone trigger output of the P-16 and the trigger inputs of the PTM If you are using a different type of triggering source, you can apply 9-12 Vdc to the corresponding pin of each zone you want to activate. Bypass Trigger Following is the pin configuration for the DC triggers: Zone Triggers Zn 10 Zn 9 Zn 8 Zn 7 Zn 11 Zn 12 Zn 15 Zn 16 Gnd Zn 4 Zn 3 Zn 2 Zn 1 Zn 5 Zn 6 Zn 13 Zn 14 Gnd Connect to P-16 Zone Triggers on Suite-16 Zones 7-12, 15 &

9 PTM-3245 AC Voltage Selection Switch The PTM-3245 can operate on either Vac or Vac operation. When you purchased the amplifier, the rear panel voltage selector switches were preset for the proper voltage in your area. Nevertheless, it s wise to double-check it before plugging into an AC outlet. If you move to a location with a different line voltage, you can easily convert the PTM For Vac Operation: Slide both voltage selector switches in their uppermost position until the indent on the switch lines up with the 115 V label on the rear panel. In this position, the 115 V label on the selector switch will also be visible. For Vac Operation: Slide both voltage selector switches in their lowermost position until the indent on the switch lines up with the 230 V label on the rear panel. In this position, the 230 V label on the selector switch will also be visible. Maintaining Your ADA Amplifier Your ADA PTM-3245 power amplifier requires no periodic maintenance and has no user-serviceable parts inside. To avoid the risk of electric shock, do not remove its top cover. The amplifier s exterior can easily be cleaned with a soft cloth pre-moistened only with a few drops of water or glass cleaner. Power Fuse There are two fuse posts on the rear panel of the PTM-3245 labeled Standby and Main. In the event of a power surge, voltage spike, or internal failure, one or both of these fuses may blow. If the PTM-3245 stops operating, check both of these fuses. Always replace the fuses with the original value. eplacing fuses with higher than rated values may cause serious damage that will not be covered under warranty. PTM-3245 ecommended Fuse Values AC ine Voltage Main Fuse Standby Fuse Vac 10 Amp slow blow 200 milliamp slow blow Vac 5 Amp slow blow 100 milliamp slow blow 9

10 Audio Design Associates Troubleshooting Chart Trouble Probable Cause emedy No power Power cord is disconnected Connect power cord Trigger Bypass selector switch is Check for correct position of the Trigger in wrong position Bypass switch AC Voltage selector switch is in Make sure the switch is in the correct the wrong position position for your region AC fuse blown eplace with same value fuse Channel pairs will not turn on with DC voltage DC trigger source wired in reverse or voltage too low Check polarity of DC source with a voltmeter. Try connecting a 9 V battery to the 12v DC input Trigger Bypass selector switch in Make sure Trigger Bypass selector switch is wrong position in its 12 V position Power but no sound evel controls turned too low Turn level controls clockwise Bad connection from Check input connections or try a different preamplifier or controller set of cables Over-current protection circuitry Check speaker load impedance has been activated Check speaker wires and connections Distorted sound Hum and/or buzz through speakers PTM-3245 has overheated Damaged speaker Problem with preamplifier or source component Improperly shielded or directional interconnect cables from preamplifier to PTM-3245 Allow PTM-3245 to cool. Check that there is adequate ventilation around the PTM Be sure the load impedance of each channel is no less than 2 ohms Connect each speaker to the opposite channel on the PTM If the same speaker remains distorted, the speaker or its wire is damaged. If the other speaker distorts, the problem may be with the PTM-3245, the preamp, or a source component Switch the left and right input cables. If distortion moves to the other channel, the problem is with a component other than the PTM-3245 Use standard shielded interconnect cables If All Else Fails Call Us for Help Ground loop at the equipment rack Install nylon shoulder washers on both sides of the panels of all equipment to insulate metal from touching the rack Call your ADA dealer or ADA s Technical Service Department toll free a HD-AUDIO. We can often solve the problem with simple diagnostic tests you can perform yourself. If we determine that your PTM-3245 will need further inspection or servicing, we will authorize return of the unit to us and advise you of the correct procedure. 10

11 PTM-3245 Warranty and eturning the PTM-3245 for Factory repair ADA power amplifiers are under warranty for here (3) years effective upon the dealer s receipt of the product. If ADA determines that you should send your amplifier to ADA for factory repair, you will be given a eturn Authorization (A) number. This A number must be clearly marked on the outer carton. IMPOTANT: Enclose a copy of your original purchase receipt to validate warranty coverage. It is the dealer s responsibility to pay for shipping to ADA. Be sure to ship the unit with adequate insurance. After repair under warranty, the unit will be returned to you via prepaid within the continental United States. Important Notice - Shipping the Amplifier to ADA Before shipping the unit, you MUST re-pack the unit into its fitted molded foam insert and its original carton. If you do not have the original packing cartons and foam inserts, call us for new packing materials that we can provide to you for a nominal charge. Use of any other carton and packing materials will probably result in shipping damage, and refusal of the unit. Common carriers such as UPS seldom pay claims for damage incurred during shipment when a product is surrounded only with Styrofoam peanuts or otherwise improperly packed. We cannot stress enough the importance of properly packing your amplifier. Shipping damage resulting from inadequate packing can cost you a lot of money and significantly increase the time required for repair. Ship the unit with adequate insurance. After repair under warranty, the unit will be returned to you via prepaid UPS within the continental United States. 11

12 Audio Design Associates Continuous Power Output 45 watts MS x 2, 20 Hz-20 khz 72 watts MS x 2, 20 Hz-20 khz Frequency esponse 1 Watt, 8 Ω 20 Hz-20 khz 0 db, -0.3 db Power Bandwidth 3 Hz-90 khz -3 db Total Harmonic Distortion 0.02% at Full Power IM Distortion IHF: 0.01% SMTPE 0.03% Dynamic Headroom > 2 db Interchannel Crosstalk > 90 db Input Impedance 10 k Ω Input Sensitivity??or V output into 8 Ω S/N atio > 109 db, input shorted, IHF A-weighted Damping Factor >400 at 20 Hz DC Trigger equirements 9 Vdc to 12 Vdc, 10 ma Dimensions Panel Width: 19 (482 mm) 3 ack Spaces (3U) Panel Height: 5.25 (133 mm) Depth: 16 1/2 (419 mm) Power equirement Idle: 135 Watts Full Power into 1200 Watts Maximum Net Weight 62 lb. ADA PTM-3245 Specifications 12