HarmanKardon-AVR760_230-avr-sm维修电路原理图.pdf
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1、harman/kardon Service Manual AVR 660/230 AVR 760/230 7 x 75W 7.1 CHANNEL A/V RECEIVER 7 x 85W 7.2 CHANNEL A/V RECEIVER Released EU2010 Harman Consumer Group, Inc. Rev 2, 07/2011 8500 Balboa Boulevard Northridge, California 91329 CONTENTS TROUBLESHOOTING GUIDE 64 PROCESSOR AND REMOTE RESET 65 EXPLODE
2、D VIEW AND PARTS 66 ALIGNMENT PROCEDURE, AMP BIAS 70 AVR 660 PARTS LIST 73 AVR 760 PARTS LIST 123 PCB DRAWINGS 177 SEMICONDUCTOR PINOUTS 195 CIRCUIT DESCRIPTION 234 BLOCK DIAGRAMS 235 WIRING DIAGRAM 238 SCHEMATIC DIAGRAMS 239-264 ESD WARNING 2 SAFETY PRECAUTIONS 3 BASIC SPECIFICATIONS 5 PACKING DRAW
3、ING AND PARTS 6 FRONT AND REAR PANELS 8 REMOTE CONTROLS 12 CONNECTIONS 15 GETTING STARTED 18 INSTALLATION 20 INITIAL SETUP 25 OPERATION 29 ADVANCED OWNERS MANUAL 36 Harman KardonAVR 660 -760, 230V Service ManualPage 1 of 264RadioFans.CN 收音机爱 好者资料库Eachprecautioninthismanualshouldbefollowedduringservi
4、cing.Components identified with the IEC symbolin the parts list are special significance to safety. When replacing a component identified with, use only the replacement parts designated, or parts with the same ratings or resistance, wattage, or voltage that are designated in theparts list in this ma
5、nual. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptablyinsulated from the supply circuit before retuming the product to the customer.Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are
6、 calledElectrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors andsemiconductor chip components.The following techniques should be used to help reduce the incidence of component damage caused by static electricity.1. Immediat
7、ely before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge onyour body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device,which should be removed for potential shock reas
8、ons prior to applying power to the unit under test.2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, toprevent electrostatic charge build-up or exposure of the assembly.3. Use only a grounded-tip soldering iron to sol
9、der or unsolder ES devices.4. Use only an anti-static solder removal device. Some solder removal devices not classified as anti-static can generate electrical chargessufficient to damage ES devices.5. Do not use freon-propelled chemicals. These can generate electrical change sufficient to damage ES
10、devices.6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacementES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material.)7. Immediately bef
11、ore removing the protective material from the leads of a replacement ES device, touch the protective material to thechassis or circuit assembly into which the device will be installed.Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.8. Minimize bodily m
12、otions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing togetheror your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices.CAUTION :Harman KardonAVR 660 -760, 230V Service
13、 ManualPage 2 of 264RadioFans.CN 收音机爱 好者资料库2SAFETY PRECAUTIONSThe following check should be performed for the continuedprotection of the customer and service technician.LEAKAGE CURRENT CHECKMeasure leakage current to a known earth ground (waterpipe, conduit, etc.) by connecting a leakage current tes
14、terbetween the earth ground and all exposed metal parts of theappliance (input/output terminals, screwheads, metaloverlays, control shaft, etc.). Plug the AC line cord of theappliance directly into a 120V AC 60Hz outlet and turn theAC power switch on. Any current measured must not exceedo.5mA.ANY ME
15、ASUREMENTS NOT WITHIN THE LIMITSOUTLINED ABOVE ARE INDICATIVE OF APOTENTIAL SHOCK HAZARD AND MUST BECORRECTED BEFORE RETURNING THE APPLIANCETO THE CUSTOMER.DeviceundertestTest allexposed metalsurfacesAlso test withplug reversed(Using AC adapterplug as required)AC Leakage TestLeakagecurrenttesterRead
16、ing shouldnot be above0.5mAEarthgroundHarman KardonAVR 660 -760, 230V Service ManualPage 3 of 2645ENGLISHINTRODUCTIONPlease register your AVR 760/AVR 660 at .NOTE: Youll need the products serial number. At the same time, you can choose to be notified about new products and/or special promotions.than
17、k you for choosing a Harman Kardon product!For more than fifty years, the Harman Kardon mission has been to share a passion for music and entertainment, using leading-edge technology to achieve premium performance. Harman Kardon, Inc., invented the receiver, a single component designed to simplify h
18、ome entertainment without compromising performance. Over the years, Harman Kardon products have become easier to use, while offering more features and sounding better than ever. The AVR 760 multizone 7.2-channel digital audio/video receiver (AVR 660 is 7.1-channel) continues this tradition with some
19、 of the most advanced audio and video processing capabilities yet, and a wealth of listening and viewing options.To obtain the maximum enjoyment from your new receiver, please read this manual and refer back to it as you become more familiar with its features and their operation.If you have any ques
20、tions about this product, its installation or its operation, please contact your Harman Kardon retailer or custom installer, or visit the Web site at .Harman Kardon aVr 760/aVr 660 7.2-channel audio/Video receiverAudio SectionAVR 760 : 85 Watts x 7, seven channels driven at full power at 8 ohms, 20H
21、z 20kHz, 0.07% THD, 595 watts total. AVR 660: 75 Watts x 7, 525 watts total.High-current capability, ultrawide-bandwidth amplifier design with low negative feedbackAll-discrete amplifier circuitry Quadruple-crossover bass management with DVD-Audio bass management capabilityDual 32-bit TI DA 710 DSP
22、processors 192kHz/24-bit A/D and D/A conversion Sampling upconversion to 96kHz Dolby Volume processing Surround ModesDolby Digital EX, Dolby Digital Plus, Dolby TrueHD Dolby Pro Logic II and IIx (Movie, Music and Game), up to 96kHz Dolby Virtual Speaker Version 2 (Reference or Wide, 2-channel) Dolby
23、 Headphone Version 2, up to 96kHz DTS-HD High Resolution Audio, DTS-HD Master Audio DTS (5.1; DTS Stereo; DTS-ES 6.1 Discrete and Matrix) DTS 96/24 (DTS Stereo) DTS Neo:6 (Cinema 5-,6- or 7-channel; Music 5-, 6- or 7-channel), up to 96kHzLogic 7 (Movie, Music and Game), up to 96kHz 5- or 7-Channel S
24、tereo, up to 96kHz Surround Off (DSP or Analog Bypass) Harman KardonPage 4 of 26440TECHNICAL SPECIFICATIONSAudio SectionStereo Mode, Continuous Average Power (FTC) AVR 760: 100 Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohms AVR 660: 85 Watts per channel, 20Hz20kHz, 0.07% T
25、HD, both channels driven into 8 ohmsSeven-Channel Surround Modes Power per Individual Channel for AVR 760/AVR 660 Front L & R channels: 85/75 Watts per channel 0.07% THD, 20Hz20kHz into 8 ohms Center channel: 85/75 Watts 0.07% THD, 20Hz20kHz into 8 ohms Surround (L & R Side, L & R Back) channels: 85
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