HarmanKardon-AVR247_230-avr-sm维修电路原理图.pdf

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1、 harman/kardon Service Manual AVR247/230 5 x 50W 7.1 CHANNEL A/V RECEIVER CONTENTS ESD WARNING.2 ELECTRICAL PARTS LIST.12 BASIC SPECIFICATIONS.3 SEMICONDUCTOR PINOUTS.54 TROUBLESHOOTING GUIDE.4 PCB DRAWINGS.110 PROCESSOR RESET.4 BLOCK DIAGRAM.119 PACKAGE LIST AND PARTS.5 WIRING DIAGRAM.120 DISASSEMB

2、LY.6 AMP BIAS ADJUSTMENT.121 UNIT EXPLODED VIEW AND PARTS11 SCHEMATIC DIAGRAMS.122 Released EU2008 harman/kardon, Inc. Rev 0, 05/2008 250 Crossways Park Dr. Woodbury, New York, 11797 harman/kardonAVR247/230 Service ManualPage 1 of 131RadioFans.CN 收音机爱 好者资料库Eachprecautioninthismanualshouldbefollowedd

3、uringservicing.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

4、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 components co

5、mmonly 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 electricity.1

6、. 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 potential

7、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 soldering i

8、ron 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 sufficient to

9、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. Immed

10、iately 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. Minimiz

11、e 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/kardonAVR247/230 Serv

12、ice ManualPage 2 of 131RadioFans.CN 收音机爱 好者资料库TECHNICAL SPECIFICATIONS 57ENGLISHTechnical SpecificationsAudio SectionStereo Mode Continuous Average Power (FTC)65Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohms7 Channel Surround Modes Power Per Individual ChannelFront L&R cha

13、nnels:50Watts per channel, 0.07% THD, 20Hz20kHz into 8 ohmsCenter channel:50Watts, 0.07% THD, 20Hz20kHz into 8 ohmsSurround (L & R Side, Back) channels:50Watts per channel, 0.07% THD, 20Hz20kHz into 8 ohmsInput Sensitivity/Impedance Linear (High Level)200mV/47kohmsSignal-to-Noise Ratio (IHF-A)100dBS

14、urround 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)35 AmpsTransient Intermodulation Distortion (TIM)UnmeasurableRise Time16secSlew Rate40V/sec*FM Tune

15、r SectionFrequency Range87.5108MHzUsable SensitivityIHF 1.3 V/13.2dBfSignal-to-Noise RatioMono/Stereo: 70/68dB (DIN)DistortionMono/Stereo: 0.2/0.3%Stereo Separation40dB 1kHzSelectivity400kHz: 70dBImage Rejection80dBIF Rejection90dBAM Tuner SectionFrequency Range5221620kHzSignal-to-Noise Ratio45dBUsa

16、ble 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 (Component)10Hz100MHz (-3dB)HDMIAud

17、io and video processingGeneralPower RequirementAC 220240V/50HzPower Consumption65W idle, 540W maximum (7 channels driven) Dimensions (Max)Width440mm Height165mm Depth382mm Weight13.6 kgDepth measurement includes knobs, buttons and terminal connections.Height measurement includes feet and chassis.All

18、 features and specifications are subject to change without notice.Harman Kardon,The Bridge and Logic 7 are registered trademarks of Harman International Industries, Incorporated.is a trademark of Harman International Industries, Inc.*Manufactured under license from Dolby Laboratories.“Dolby,”“Pro Lo

19、gic” and the Double-D symbol are trademarks of Dolby Laboratories.DTS,DTS ES,Neo:6and96/24 are trademarks of DTS,Inc.SA-CD is a trademark of Sony Electronics, Inc.Blu-ray Disc is a trademark of the Blu-ray Disc Association.Apple and iPod are registered trademarks of Apple Computer, Inc.Cirrus is a r

20、egistered trademark of Cirrus Logic Corp.*Without input anti slewing and output isolation networks.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-Definition Multimedia I

21、nterface are trademarks or registered trademarks of HDMI Licensing, LLC.This product incorporates copyright protection technology that is protected by methodclaims of certain U.S. patents and other intellectual property rights owned by MacrovisionCorporation and other rights owners. Use of this copy

22、right protection technology must beauthorized by Macrovision Corporation, and is intended for home and other limited viewinguses only unless otherwise authorized by Macrovision Corporation. Reverse engineering ordisassembly is prohibited.33230_AVR247_Eng 29/06/07 8:48 Side 57harman/kardonAVR247/230

23、Service ManualPage 3 of 13156 TROUBLESHOOTING GUIDETroubleshooting GuideProcessor ResetIn the rare case where the units operation or thedisplays seem abnormal,the cause may involvethe erratic operation of the systems memory ormicroprocessor.To correct this problem, first unplug the unit fromthe AC w

24、all outlet and wait at least threeminutes. After the pause, reconnect the ACpower cord and check the units operation. If thesystem still malfunctions, a system reset mayclear the problem.To clear the AVRs entire system memoryincluding tuner presets, output level settings,delay times and speaker conf

25、iguration data, firstput the unit in Standby by pressing the SystemPower Control button 2. Next press and holdthe Tone Mode button8for three seconds.The unit will turn on automatically.Note thatonce you have cleared the memory in this manner,it is necessary to re-establish all systemconfiguration se

26、ttings and tuner presets.NOTE: Resetting the processor will erase anyconfiguration 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 itemsm

27、ust be reentered.If the system is still operating incorrectly, theremay have been 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 do

28、es not function when Main No AC Power Make certain AC power cord is plugged Power 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 i

29、s on Press Mute button ? Volume control is down Turn up volume controlNo sound from any speaker; Amplifier is in protection mode Check speaker-wire connections for shorts at receiver light around Power switch 2is reddue to possible shortand speaker ends Amplifier is in protection mode Contact your l

30、ocal 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 surround information from mono sources (except withTheater and Hall surround modes) Incorrect configuration Check speaker

31、 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 remote Change remote batteriesremote commands Wrong device selected Press the AVR Selector5 Remote sensor is obscured Mak

32、e 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 lights,motors or other electrical appliancesLetters flash in the Channel Indicator Digital audio feed paused Resume play fo

33、r DVDDisplay $and Digital Audio stops Check that Digital Signal is fed to the Digital Input selected33230_AVR247_Eng 29/06/07 8:48 Side 56harman/kardonAVR247/230 Service ManualPage 4 of 1312. Package DrawingAVR247/230ACCESSORY-1BOX,OUT CARTON341DESCRIPTIONNOCPS6A564CQXAVR247/230CPG1A822U111Q,tyPARTS

34、 NO.CPS6A565SNOW,PAD(R)21SNOW,PAD(L)SETAVR247/230SET15ACCESSORY-26CQXAVR247/2301ACCESSORY-11SNOW PAD (R)3BOX ,OUT CARTON5SET4SNOW PAD (L)2MICROPHONE ASSY7ACCESSORY-26MICROPHONE ASSY7CJXAVR340MICRO1NODESCRIPTIONPARTS NO.Q,ty123451711FM 1 POL ANTCSA1A018Z1NODESCRIPTIONPARTS NO.Q,ty9101112131CPB1061WPO

35、LY BAGCQX1A1255ZMANUAL,INSTRUCTIONMANUAL ,SETUP GUIDE11BOOKLET,INFORMATIONCQE1A180Z1STAPLECPL09053ACCESSORY-2ACCESSORY-1CPB1061WPOLY BAGCSA1A027ZAM LOOP ANTENNA ASSY1CABR03P3BATTERY3COVER ASSYCGRAVR130/230ZAREMOCON ASSYCARTAVR247/2301POLY BAG123AM LOOP ANTENNA ASSYBATTERY ASSY4FM 1 POLE ANT5COVER AS

36、SYPOLY BAG911CGR1A332M7H43CQE1A220ZCPS1A6761CPB1A176Z112 345CGR1A331M7H431PAD , COVERCOVER ACOVER BSHEET,FRONT COVERBAG , POLYCQX1A1256ZMICROPHONE ASSYAAMICROPHONE ASSTCJXAVR340MICRO16BOOKLET,INFORMATIONMANUAL INSTRUCTION11MANUAL SETUP GUIDE12131. Instruction manual assy - AccessoriesSTAPLE6IMAGE BR

37、OCHURESHQE1A273Z1IMAGE BROCHURES10STAPLE8REMOCON ASSY78STAPLECPL09053harman/kardonAVR247/230 Service ManualPage 5 of 1311211. Removing the Top Cabinet Remove the Screws546DISASSEMBLY13111079133128756894321 Remove the Screws2. Removing the Front Panel196347 Remove the Screws4. Removing the Main PCB12

38、517133 Remove the Screws3. Removing the Rear PanelAVR247/23018331413122611109272930222128765431178252151623 2419203132harman/kardonAVR247/230 Service ManualPage 6 of 131DISASSEMBLY PROCEDURES (AVR247) TOP-CABINET(21) REMOVAL 1. Remove 13 screws(S1,S7) and then remove the Top-cabinet. FRONT PANEL ASS

39、Y REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Disconnect the card cable between connector(CN72-17p) on the Fip PCB(37-1) and connector(CN72) on the Input PCB(39-1). 3. Disconnect the lead wire(BN81-8P) on the Fip PCB(37-1) from connector(CN81) on the Trans PCB(40-4). 4. Dis

40、connect the lead wire(BN22-6P) on the Phone PCB(37-5) from connector(CN22) on the Input PCB(39-1). 5. Disconnect the lead wire(BN18-5P) on the Phone PCB(37-5) from connector(CN18) on the Input PCB(39-1). 6. Disconnect the lead wire(BN10-4P) on the Volume PCB(37-6) from connector(CN10) on the Input P

41、CB(39-1). 7. Disconnect the lead wire(BN41-6P) on the Volume PCB(37-6) from connector(CN41) on the Video PCB(41). 8. Disconnect the lead wire(BN90-2P) on the Main PCB(38-1) from connector(CN86) on the Moms PCB(37-4). 9. Remove 1 screw(S10) and then lead wire(JW82-1P,JW83-1P) on the Phone PCB(37-5).

42、10 .Remove 1screw(S10) and then lead wire(JW84-1P) on the Volume PCB(37-3). 11. Remove 10 screws(S1) and then remove the Front Panel ASSY. Volume PCB(37-6) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Remove the Front Panel ASSY, referring to the previous step. 3. Pull out t

43、he Volume Knob ASSY. 4. Disconnect connector(CN84) on the Volume PCB(37-6) from the lead wire(BN84-5P) on the Fip PCB(37-1). 5. Disconnect the lead wire(BN92-5P)on the Volume PCB(37-6) from connector(CN92) on the Phone PCB(37-5). 6. Remove 8 screws(S2,S14), and then remove the Volume PCB(37-6). PHON

44、E PCB(37-5) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Remove the Front Panel ASSY, referring to the previous step. 3. Disconnect connector(CN92) on the Phone PCB(37-5) from the lead wire(BN92-5P) on the Volume PCB(37-6). 4. Disconnect connector(CN85)on the Phone PCB(37-5)

45、 from the lead wire(BN85-3P) on the Fip PCB(37-1). 5. Remove 2 screws(S2) and then remove the Phone PCB(37-5). POWER LED PCB(37-3) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Remove the Front Panel ASSY, referring to the previous step. 3. Disconnect connector(CN88) on the P

46、ower Led PCB(37-3) from the lead wire(BN88-4P) on the Fip PCB(37-1) . 4. Remove 2 screws(S2) and then remove the Power led PCB(37-3). FIP PCB(37-1) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Remove the Front Panel ASSY, referring to the previous step. 3. Disconnect the lea

47、d wire(BN84-5P) on the Fip PCB(37-1) from connector(CN84) on the Volume PCB(37-6). 4. Disconnect the lead wire(BN85-3P) on the Fip PCB(37-1) from connector(CN85) on the Phone PCB(37-5). 5. Disconnect the lead wire(BN88-4P) on the Fip PCB(37-1) from connector(CN88) on the Power Led PCB(37-3). harman/

48、kardonAVR247/230 Service ManualPage 7 of 1316. Disconnect the connector (CN89) on the Fip PCB(37-1) from lead wire(BN89-4P) on the Key PCB(37-2). 7. Remove 3 screws(S2) and then remove the Guide PCB(37-8) & the Fip PCB(37-1). KEY PCB(37-2) REMOVAL 1. Remove the Top-cabinet, referring to the previous

49、 step. 2. Remove the Front Panel ASSY, referring to the previous step. 3. Remove the Fip PCB(37-1), referring to the previous step. 4. Remove 10 screws(S2) and then remove the Key PCB(37-2). TUNER MODULE(44) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Disconnect the card ca

50、ble between connector(CON1-13P) on the Tuner module(44) and connector(CN13) on the Input PCB(39-1). 3. Remove 2 screws(S8) and then remove the Tuner Module(44). HUDSON PCB(42) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Disconnect connector(CN80) on the HUDSON PCB(42) from