HarmanKardon-AVR745-avr-sm1维修电路原理图.pdf

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1、 harman/kardon AVR745 AVR745 A/V DOLBY DIGITAL RECEIVER SERVICE MANUAL CONTENTSESD WARNING.2ELECTRICAL PARTS LIST.11LEAKAGE TESTING.3SEMICONDUCTOR PINOUTS36BASIC SPECIFICATIONS.4PCB DRAWINGS.87TROUBLESHOOTING GUIDE.5SERVICE PROCEDURE.100PROCESSOR RESET.5BLOCK DIAGRAM.103PACKAGING.6CIRCUIT DESCRIPTIO

2、N.105PACKING PARTS LIST.7WIRING DIAGRAM.106UNIT EXPLODED VIEW.8SCHEMATIC DIAGRAMS.107EXPLODED VIEW PARTS LIST.9harman/kardon, Inc.250 Crossways Park Dr.Woodbury, New York, 11797harman/kardonService manual AVR745EUPage 1 of 118RadioFans.CN 收音机爱 好者资料库Rev0 - 08/2007Eachprecautioninthismanualshouldbefol

3、lowedduringservicing.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

4、 list in this manual. 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 compone

5、nts commonly are 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 electri

6、city.1. Immediately 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 pote

7、ntial shock reasons 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 solde

8、ring iron to solder 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 sufficie

9、nt to damage ES 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.

10、 Immediately before 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. M

11、inimize bodily motions 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/kardonService m

12、anual AVR745EUPage 2 of 118RadioFans.CN 收音机爱 好者资料库SAFETY 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 curre

13、nt testerbetween 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.

14、ANY MEASUREMENTS 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 TestLeakagecurrenttest

15、erReading shouldnot be above0.5mAEarthgroundharman/kardonService manual AVR745EUPage 3 of 118ENGLISHTechnical SpecificationsAudio SectionStereo Mode Continuous Average Power (FTC)100Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohms5/7 Channel Surround Modes Power Per Individu

16、al ChannelFront L&R channels:85Watts per channel, 0.07% THD, 20Hz20kHz into 8 ohmsCenter channel:85Watts, 0.07% THD, 20Hz20kHz into 8 ohmsSurround (L & R Side, L & R Back) channels:85Watts per channel, 0.07% THD, 20Hz20kHz into 8 ohmsInput Sensitivity/Impedance Linear (High Level)200mV/47kohmsSignal

17、-to-Noise Ratio (IHF-A)95dBSurround System Adjacent Channel Separation Analog Decoding 40dB (Pro Logic, etc.) Dolby Digital (AC-3) 55dB DTS55dBFrequency Response 1W (+0dB, 3dB)10Hz130kHzHigh Instantaneous Current Capability (HCC)60 AmpsTransient Intermodulation Distortion (TIM)UnmeasurableRise Time1

18、6secSlew Rate40V/sec*FM Tuner SectionFrequency Range87.5108MHzUsable SensitivityIHF 1.3 V/13.2dBfSignal-to-Noise RatioMono/Stereo: 70/68dB (DIN)DistortionMono/Stereo: 0.15/0.2%Stereo Separation40dB 1kHzSelectivity400kHz: 70dBImage Rejection80dBIF Rejection90dBAM Tuner SectionFrequency Range5201710kH

19、zSignal-to-Noise Ratio45dBUsable SensitivityLoop: 500VDistortion1kHz, 50% Mod: 0.8%Selectivity10kHz: 30dBVideo SectionVideo FormatPAL/NTSCInput Level/Impedance1Vp-p/75 ohmsOutput Level/Impedance1Vp-p/75 ohmsVideo Frequency Response(Composite and S-Video)10Hz8MHz (3dB)Video Frequency Response (Compon

20、ent)10Hz-50MHz (-3dB)HDMI Version 1.1GeneralPower RequirementAC 220-240V/50HzPower Consumption120W idle, 1400W maximum (7 channels driven) Dimensions (Max)Width440mm Height165mm Depth435mm Weight19.9 kgDepth measurement includes knobs, buttons and terminal connections. Height measurementincludes fee

21、t and chassis.All features and specifications are subject to change without notice.Harman Kardon and Power for the Digital Revolution are registered trademarks of Harman International Industries, Incorporated.and are trademarks of Harman International Industries, Incorporated.(Patent No.5,386,478).*

22、Manufactured under license from Dolby Laboratories.“Dolby,”“Pro Logic,”“Pro Logic II,” Pro Logix IIx and the Double-D symbol are trademarks ofDolby Laboratories. Confidential Unpublished Works. 19921999 Dolby Laboratories, Inc.All rights reserved.DTS and DTS Surround, DTS-ES and DTS Neo:6 are tradem

23、arks of Digital Theater Systems, Inc.Logic 7 is a registered trademark of Harman International Industries, Incorporated.A-BUS and A-BUS/READYReady are registered trademarks of Leisure Tech Electronics Pty LtdAustralia.TiVo is a registered trademark of TiVo, Inc.SACD is a trademark of Sony Corporatio

24、n.iPod is a registered trademark of Apple Computer, Inc.DLP and Texas Instruments are trademarks of Texas Instruments.Faroudja and DCDi by Faroudja are trademarks of Genesis Microchip, Inc.HD-DVD is a trademark of the DVD Format/Logo Licensing Corporation (DVD FLLC).HDMI, the HDMI logo and High-Defi

25、nition Multimedia Interface are trademarks or registeredtrademarks of HDMI Licensing, LLC.Microsoft,Windows and Windows Media are registered trademarks of Microsoft Corporation inthe United States and other countries.*Without input anti slewing and output isolation networks. The BridgeTMSupplied Acc

26、essoriesThe following accessory items are supplied with the AVR 745.If any of these items are missing, please contact Harman Kardon customer service at . TC 30 remote control Battery for the TC 30 USB cable for the TC 30 TC 30 charging cradle Charger for the TC 30 TC 30 software CD-ROM TC 30 install

27、ation guide ZR 10 remote control Two AAA batteries for ZR 10 microphone Extender rod for microphone AM loop antenna FM wire antennaharman/kardonService manual AVR745EUPage 4 of 118ENGLISHTroubleshooting GuideProcessor ResetIn the rare case where the units operation or thedisplays seem abnormal,the c

28、ause may involvethe erratic operation of the systems memory ormicroprocessor.To correct this problem, first unplug the unit fromthe AC wall outlet and wait at least threeminutes. After the pause, reconnect the ACpower cord and check the units operation. If thesystem still malfunctions, a system rese

29、t mayclear the problem.To clear the AVRs entire system memory includ-ing tuner presets, output level settings, delaytimes and speaker configuration data, first putthe unit in Standby by pressing the SystemPower Control button 2. Next, press theSurround Mode5and the RDSbuttonssimultaneously for three

30、 seconds.The unit will turn on automatically and displaythe RESETmessage in the Main Infor-mation Display .Note that once you havecleared the memory in this manner,it is necessaryto re-establish all system configuration settingsand tuner presets.NOTE: Resetting the processor will erase anyconfigurat

31、ion settings you have made forspeakers, output levels, surround modes, digitalinput assignments as well as the tuner presets.After a reset the unit will be returned to thefactory presets, and all settings for these itemsmust be reentered.If the system is still operating incorrectly, theremay have be

32、en an electronic discharge or severeAC line interference that has corrupted thememory or microprocessor.If these steps do not solve the problem, consultan authorized Harman Kardon service depot.SYMPTOMCAUSESOLUTIONUnit does not function when Main No AC Power Make certain AC power cord is plugged Pow

33、er Switch 1is pushedinto a live outlet Check to see if outlet is switch controlledDisplay lights, but no sound Intermittent input connections Make certain that all input and speaker or pictureconnections are secure Mute is on Press Mute button BK Volume control is down Turn up volume controlUnits tu

34、rns on, but Front-Panel Display brightness is turned off Follow the instructions in the Display Brightness section Display does not light on page 53 so that the display is set to VFD FULLNo sound from any speaker; Amplifier is in protection mode Check speaker-wire connections for shorts at receiver

35、light around Power switch 2is reddue to possible shortand speaker ends Amplifier is in protection mode Contact your local Harman Kardon service depotdue to internal problemsNo sound from surround or Incorrect surround mode Select a mode other than Stereocenter speakers Input is mono There is no surr

36、ound information from mono sources (except withTheater and Hall surround modes) Incorrect configuration Check speaker mode configuration Stereo or Mono program material Some surround modes may not create rear-channel information from nonencoded programsUnit does not respond to Weak batteries in remo

37、te Change remote batteriesremote commands Wrong device selected Press the AVR Selector B Remote sensor is obscured Make certain front-panel sensor is visible to remote or connect remote sensorIntermittent buzzing in tuner Local interference Move unit or antenna away from computers, fluorescent light

38、s,motors or other electrical appliancesLetters flash in the Channel Indicator Digital audio feed paused Resume play for DVDDisplay and Digital Audio stops Check that Digital Signal is fed to the Digital Input selectedharman/kardonService manual AVR745EUPage 5 of 118PACKING PARTS LIST FOLLOWING PAGE

39、harman/kardonService manual AVR745EUPage 6 of 118AVR 745 EU Packing Parts ListNOPART NUMBERDESCRIPTIONQTY1ZKD2873HA00-R-ALABEL BARCODE AVR745EU TF PRINT 22ZKD2804HA00-R-8BOX CARTON AVR745EU 13ZKD2801HA00-R-9MANUAL AVR745EU 14ZQD1201HAWHCUSHION POLY EPS RIGHT AVR635 15ZHC1201AAWHFILM SHEET PE 920 X 1

40、000 16H03-WAD022000BK-R-AWR002 H05VVF 0.75MMSQ 2G BLACK 2000MM17ZQD1202HAWHCUSHION POLY EPS LEFT AVR635 18ZKD2802HA04AVR745 TOTAL ACCESSORY BOX19See invidual partsREMOCON W/ ACCESSORY BOX AVR745EU UK19a501673-0000USB PC LINK CABLE19b190304-0002BATTERY TC 30 19c602279-0900SOFTWARE CD TC 3019dTC 30 BA

41、TT DOORBATTERY COVER TC3019eTC 30 OMOWNERS MANUAL TC30 19f866176-0000BASE STATION CHARGER TC 30 19g190254-A042POWER SUPPLY TC 30 EU19h190254-A043POWER SUPPLY TC 30 UK19i657316-0914CARTON TC 30 EU UK19j190254-A044REMOTE HANDSET TC30 110ZBP00122051BAG PE 330 X245 T0.05 111ZKD2716HA00QUICK SETUP GUIDE

42、AVR745US 112ZKC1214HA00LABEL SAFETY LEAFLET 113ZKC1113HA00CARD WARRANTY 114ZKD1263HA00BROCHURE AVR US115ZKC1263HA00INSERT RS232 NOTE PAPER 116H03-ZPD1212INBKMICROPHONE ASSY EXTENSION PIECE 117ZKD2802HA01BOX ANTENNA118ZBP00161851BAG PE 160X180MM 119H03-WAD01200303-R-0ANTENNA WIRE 75 OHM WIRE T15011F-

43、1 120H03-ATALF039ABKANTENNA WIRE ANTENNA LOOP-300 121ZBP00020350POLYBAG BATTERY122BTA3A1511SFBATTERY ALKALINE 1.5V AAA 223ZKD2802HA03BOXZONE I1 REMOTE CONTROLLER124H03-RYD2702HA00REMOCON ZONE 2 AVR745 125ZKD2802HA02BOX MIC126H03-MCD12TWBKNNAVR635 MICROPHONE ASSY 1harman/kardonService manual AVR745EU

44、Page 7 of 118harman/kardonService manual AVR745EUPage 8 of 118AVR 745EU EXPLODED VIEW PARTS LISTNO.PART NO.DESCRIPTIONQTY1H03-ZMC11S00200AL DOOR AVR430/63012H03-ZMD2702GAGYAL PANEL FRONT AVR74513H03-ZMD2703GAGY BADGE FRONT AL AVR745 GREY HOT STAMPING 14H03-ZMD27S20A00BADGE harman/kardon COVER TOP AV

45、R74515H03-ZMD27S08A00COVER TOP AVR74516H03-ZVC11DWT200TAPE PANEL17H03-ZVC11DWT100TAPE DOOR18H03-ZMD12S01A00SHIELD IR19H03-SOSS9CKX3NNJACK PHONE 6.35 H70980110S 9P BK 110H03-ZMB01S00100BKT HEADPHONE 111H03-SWA2B21PDA&SW PUSH POWER SDDLB15700 112ZPC1006GAWHBUTTON STANDBY113ZPC1003GAGYBUTTON POWER114ZP

46、C1007GAMWINDICATOR STAND-BY115H03-ZMC11S12A00CAP BUTTON STAND-BY AVR430/630116ZFD122062SBRUBBER TOP AVR635117ZPD2801GAGYPANEL FRONT AVR745EU118H03-ZMC11S14A00BRACKET DOOR119ZPC1002GAGYDOOR AVR430/630120H03-ZMD05S16A00BKT HINGE AVR7300221H03-ZPC1018GARTFILTER VFD 122H03-ZPD2719GABTWINDOW DISPLAY AVR7

47、45+BADGE NAME AVR745123H03-ZPD0317GACRCAP KNOB VOLUMN 124H03-ZPD0316GASGCOVER KNOB 125H03-ZPD0315GAMWVOLUMN KNOB 126H03-ZVC11GEAR01DAMPER GEAR DP120127ZPC1102GAMWINDICATOR VIDEO 228ZPC1005GAGYBUTTON 8 KEY129H03-ZPD1004GASGBUTTON 7 KEY EU130ZFNR19720SBRUBBER FOOT 19.7X19.7X2T BK431ZPC1103GAGYFOOT 50M

48、M 15.8MM432H03-ZMD27S13A00CHASSIS MAIN AVR745133H03-SORA3313PNNCON PHONOSCKT RCA-313P3PINS134H03-SORA8OSC5N8JACK S-VIDEO 1P C40160261N135H03-ZMC12S17A00AC PUN SHIELD DIGITAL ET136H03-SORA1JE01NNJACK RCA 1P JE010003MN GND OR137H03-SOTORX177LTFIBER OPTIC RECEIVING TORX177L (F, T) 38H03-SO3P5179NNNJACK

49、 PHONE 3.5PI PJ0435179N139ZFD122072SBRUBBER TOP AVR635340H03-ZMC11S06A00SPRING STOPPER AVR430/630141H03-SWE3A0505S1SWIROT EC 16B24204A9 5V 500UOA 10T 3P 00142H03-ZMB01S02200SPRING PLATE GND C5212 0.2T943H03-ZMD12S01B00SHIELD MICROPHONE144H03-XD18BT19GNAVFD 18-BT-19GINK145ZPC1017GABKHOLDER VFD AVR430

50、/630146H03-ZMC11S07A00CHASSIS FRONT AVR430/630147H03-ICROMN338ECREMOCON RECEIVER MODULE ROM-N338TEC48H03-ZVJF0925S00-RDC FAN JF0925S1M-003C651R 12V 92x92x25mm 49H03-ZMC11S09A00BKT FAN FRONT AVR430/630150H03-ZMD27HS0200H/SINK MAIN AVR745151H03-ZMC12S08B00BKT TRANS BOTTOM152H03-TXPWMEI96B0POWER TRANSF