Yamaha-RXV795A-avr-sm 维修电路原理图.pdf

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1、RX-V795a / RDSHTR-5170YAMAHA CORPORATIONP.O.Box1,Hamamatsu,JapanSERVICE MANUALAV RECEIVERI CONTENTSTO SERVICE PERSONNEL .1REMOTE CONTROL PANELS.1FRONT PANELS .2REAR PANELS .34SPECIFICATIONS .56INTERNAL VIEW .7DISASSEMBLY PROCEDURES .7SELF DIAGNOSIS FUNCTION.819FACTORY PRESET .20AMP ADJUSTMENTS .21TU

2、NER ADJUSTMENTS .2225DISPLAY DATA .26IC DATA .2737PRINTED CIRCUIT BOARD .3861PIN CONNECTION DIAGRAM .62BLOCK DIAGRAM .6364SCHEMATIC DIAGRAM .6573PARTS LIST .7492REMOTE CONTROL TRANSMITTER.93RX-V795a / RDSHTR-5170Printed in JapanIMPORTANT NOTICEThis manual has been provided for the use of authorized

3、YAMAHA Retailers and their service personnel.It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, arealready known and understood by the users, and have therefore not been restated.WARNING:Failure to follow appropriate service and safety

4、procedures when servicing this product may result inpersonal injury, destruction of expensive components, and failure of the product to perform as specified.For these reasons, we advise all YAMAHA product owners that any service required should be performedby an authorized YAMAHA Retailer or the app

5、ointed service representative.IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute authorization, certifica-tion or recognition of any applicable technical capabilities, or establish a principle-agent relationshipof any form.The data provided is believed to

6、 be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, andservice departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore,inevitable and specifications are subject to change without notice or obligation to retrofi

7、t. Should any discrepancy appear toexist, please contact the distributors Service Division.WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may haveaccumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect

8、to thisbuss).IMPORTANT:Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to theunit.100691RadioFans.CN 收音机爱 好者资料库1RX-V795a/RDS/HTR-5170RX-V795a / RDSHTR-5170I TO SERVICE PERSONNEL1. Critical Components information.Components having special characteris

9、tics are marked Z andmust be replaced with parts having specifications equal to thoseoriginally installed.2. Leakage Current Measurement (For 120V Model only).When service has been completed, it is imperative that youverify that all exposed conductive surfaces are properly insu-lated from supply cir

10、cuits.G Meter impedance should be equivalent to 1500 ohm shuntedby 0.15 F.G Leakage current must not exceed 0.5mA.G Be sure to test for leakage with the AC plug in both polarities.CAUTIONF821 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE 2.5A,250V FUSE(G model)F822 : FO

11、R CONTINUED PROTECTION AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE 4.0A,250V FUSE(A, B, G, L models)F823 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE 8.0A,125V FUSE(U, C, R, T models)F851 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE

12、4.0A,250V FUSE(R, T models)WARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Whereapplicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (an

13、d possiblyother entities) to cause cancer and/or birth defects or other reproductive harm.DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASONWHATSOEVER!Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fu

14、mes or expose eyes tosolder/flux vapor!If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handlingfood.I REMOTE CONTROL PANELSMU, C, R, T and L modelsMA, B and G modelsAVRadioFans.CN 收音机爱 好者资料库RX-V795a/RDS/HTR-51702RX-V795a / RDSHTR-

15、5170I FRONT PANELSMRX-V795aMRX-V795aRDSB, G modelsMHTR-5170NATURAL SOUNDAV RECEIVERRX-V795aA/B/C/D/ESPEAKERSPHONESSTANDBY/ONEXTENSION BYPASS1ABASSBASSTREBLEBALANCETONEONOFFONOFFB23450II223344550II223344550II2233445L5 R678FM/AMINPUT MODEEFFECTPROGRAMVIDEO AUXVOLUMEINPUT SELECTORCINEMA DSPTAPE/MD MON?

16、/EXT. DECODERTUNINGDOWNUPS VIDEOVIDEOAUDIOLRLEVELSET?MENUMANL/AUTO FMAUTO/MANL MONOMEMORY EDITTUNING?MODED I G I T A LD I G I T A LSURROUNDDOLBYI888I2222?dB4400006NATURAL SOUNDAV RECEIVERRX-V795aRDSA/B/C/D/ESPEAKERSPHONESSTANDBY/ONEXTENSION BYPASS1ABASSBASSTREBLEBALANCETONEONOFFONOFFB23450II22334455

17、0II223344550II2233445L5 RMODESTART678FM/AMPTY SEEKINPUT MODEEFFECTPROGRAMVIDEO AUXVOLUMEINPUT SELECTORCINEMA DSPTAPE/MD MON?/EXT. DECODERTUNINGDOWNUPS VIDEOVIDEOAUDIOLRLEVELSET?MENUMANL/AUTO FMAUTO/MANL MONOMEMORY EDITTUNING?MODERDS MODE/?FREQD I G I T A LD I G I T A LSURROUNDDOLBYI888I2222?dB440000

18、6EONNATURAL SOUNDAV RECEIVERHTR-5170A/B/C/D/ESPEAKERSPHONESSTANDBY/ONEXTENSION BYPASS1ABASSBASSTREBLEBALANCETONEONOFFONOFFB23450II223344550II223344550II2233445L5 R678FM/AMINPUT MODEEFFECTPROGRAMVIDEO AUXVOLUMEINPUT SELECTORCINEMA DSPTAPE/MD MON?/EXT. DECODERTUNINGDOWNUPS VIDEOVIDEOAUDIOLRLEVELSET?ME

19、NUMANL/AUTO FMAUTO/MANL MONOMEMORY EDITTUNING?MODED I G I T A LD I G I T A LSURROUNDDOLBYI888I2222?dB44000063RX-V795a/RDS/HTR-5170RX-V795a / RDSHTR-5170I REAR PANELSMRX-V795a/HTR-5170 U modelMRX-V795a/HTR-5170 C modelMRX-V795a/HTR-5170 R, T modelsMRX-V795a/HTR-5170 A modelFM?ANTGNDGNDS VIDEO SIGNALV

20、IDEO SIGNALSPEAKERSMAINAC OUTLETSVOLTAGE SELECTORIMPEDANCE SELECTORSET BEFORE POWER ON110/120/220/240 VOLTS?350 WATTS 50/60HzAUDIO SIGNALEXTERNAL DECOODER INPUTOUTPUTDIGITAL SIGNALON SCREEN SELECTORPALINFMFREQUENCY?STEPAMPHONOCDININOUTVCR50kHz 9kHz100kHz 10kHzDVD/LDDVD/LDTV/DBSDVD/LDTAPE/MDTV/DBSMON

21、ITOR?OUTOUTOUTINOUTVCRVCRMONITOR?OUTDVD/LD?COAXIALMAINCENTERMAINCENTERCENTERSUB?WOOFERSUB?WOOFERSWITCHED?100W MAX.TOTALSURROUNDREAR?(SURROUND)REAR?(SURROUND)DVD/LDTV/DBSCD?OPTICALOPTICALNTSCS VIDEO VIDEO75 UNBAL.AM?ANT(REC)(PLAY)341AABBCAUTIONV398620 - R, T - OSEE INSTRUCTIONMANUFACTURED UNDER LICEN

22、SE FROM DOLBY LABORATORIES LICENSING?CORPORATION. DOLBY , AC-3 , PLO LOGIC , AND THE DOUBLE-D SYMBOL?ARE TRADEMARKS OF DOLBY LABORATORIES LICENSING CORPORATION.?COPYRIGHT 1992 DOLBY LABORATORIES, INC. ALL RIGHTS RESERVED.MANUFACTURED UNDER LICENSE FROM DIGITAL THEATER SYSTEMS, INC. US PAT.?NO.5,451,

23、942 AND OTHER WORLD - WIDE PATENTS ISSUED AND PENDING. DTS ,? DTS DIGITAL SURROUND , ARE TRADEMARKS OF DIGITAL THEATER SYSTEMS,?INC. COPYRIGHT 1996 DIGITAL THEATER SYSTEMS,INC. ALL RIGHTS RESERVED.MANUAl FOR CORRECT SETTING.CORPORATIONMODEL NO. RX - V795aREARABA B: 6MIN. /SPEAKER: 6MIN. /SPEAKER: 4M

24、IN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER:16MIN. /SPEAKERMAIN A OR BMAIN A OR BCENTERCENTERREARFM?ANTGNDGNDS VIDEO SIGNALREMOTE?CONTROLVIDEO SIGNALSPEAKERSMAINAC OUTLETS:RISQUE DE CHOCELECTRIQUE NE PAS OUVRIR.IMPEDANCE SELECTORSET BEFORE POWER ON120 VOLTS 310 WATTS

25、 60HzAUDIO SIGNALEXTERNAL DECODER INPUTOUTPUTDIGITAL SIGNALON SCREEN SELECTORINPHONOCDININOUTINOUTVCRDVD/LDDVD/LDTV/DBSDVD/LDTAPE/MDTV/DBSMONITOR?OUTOUTOUTINOUTVCRVCRMONITOR?OUTDVD/LD?COAXIALMAINCENTERMAINCENTERCENTERSUB?WOOFERSUB?WOOFER100W MAX. TOTALSURROUNDREAR?(SURROUND)REAR?(SURROUND)DVD/LDTV/D

26、BSCD?OPTICALOPTICALS VIDEO VIDEO75 UNBAL.AM?ANT(REC)(PLAY)341AABBCAUTIONV398600 - U - OMADE IN MALAYSIASEE INSTRUCTIONCAUTIONATTENTION:TO REDUCE THERISK OF FIRE OR ELECTRIC?SHOCK, DO NOT EXPOSE THIS?APPLIANCE TO RAIN OR?MOISTURE.WARNINGRISK OF ELECTRIC SHOCK?DO NOT OPENMANUFACTURED UNDER LICENSE FRO

27、M DOLBY LABORATORIES LICENSING?CORPORATION. DOLBY , AC-3 , PLO LOGIC , AND THE DOUBLE-D SYMBOL?ARE TRADEMARKS OF DOLBY LABORATORIES LICENSING CORPORATION.?COPYRIGHT 1992 DOLBY LABORATORIES, INC. ALL RIGHTS RESERVED.MANUFACTURED UNDER LICENSE FROM DIGITAL THEATER SYSTEMS, INC. US PAT.?NO.5,451,942 AN

28、D OTHER WORLD - WIDE PATENTS ISSUED AND PENDING. DTS ,? DTS DIGITAL SURROUND , ARE TRADEMARKS OF DIGITAL THEATER SYSTEMS,?INC. COPYRIGHT 1996 DIGITAL THEATER SYSTEMS,INC. ALL RIGHTS RESERVED.THIS DEVICE COMPLIES WITH PART 15?OF THE FCC RULES.OPERATION IS?SUBJECT TO THE CONDITION THAT?THIS DEVICE DOE

29、S NOT CAUSE?HARMFUL INTERFERENCE.MANUAL FOR CORRECT SETTING.CORPORATIONMODEL NO. RX - V795aREARABA B: 6MIN. /SPEAKER: 6MIN. /SPEAKER: 4MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER:16MIN. /SPEAKERMAIN A OR BMAIN A OR BCENTERCENTERREARSWITCHED120V60HzNRTLFM?ANTGNDGNDS

30、VIDEO SIGNALREMOTE?CONTROLVIDEO SIGNALSPEAKERSMAINAC OUTLETS:RISQUE DE CHOCELECTRIQUE NE PAS OUVRIR.IMPEDANCE SELECTORSELECTEUR DIMPEDANCESET BEFORE POWER ON120 VOLTS 440 VAAUDIO SIGNALEXTERNAL DECODER INPUTOUTPUTDIGITAL SIGNALON SCREEN SELECTORINPHONOCDININOUTINOUTVCRDVD/LDDVD/LDTV/DBSDVD/LDTAPE/MD

31、TV/DBSMONITOR?OUTOUTOUTINOUTVCRVCRMONITOR?OUTDVD/LD?COAXIALMAINCENTERMAINCENTERCENTERSUB?WOOFERSUB?WOOFER100W MAX. TOTAL0.8A MAX. TOTALSURROUNDREAR?(SURROUND)REAR?(SURROUND)DVD/LDTV/DBSCD?OPTICALOPTICALS VIDEO VIDEO75 UNBAL.AM?ANT(REC)(PLAY)341AABBCAUTIONV398610 - C - OMADE IN MALAYSIASEE INSTRUCTIO

32、NCAUTIONATTENTION:TO REDUCE THERISK OF FIRE OR ELECTRIC?SHOCK, DO NOT EXPOSE THIS?APPLIANCE TO RAIN OR?MOISTURE.WARNINGRISK OF ELECTRIC SHOCK?DO NOT OPENMANUFACTURED UNDER LICENSE FROM DOLBY LABORATORIES LICENSING?CORPORATION. DOLBY , AC-3 , PLO LOGIC , AND THE DOUBLE-D SYMBOL?ARE TRADEMARKS OF DOLB

33、Y LABORATORIES LICENSING CORPORATION.?COPYRIGHT 1992 DOLBY LABORATORIES, INC. ALL RIGHTS RESERVED.MANUFACTURED UNDER LICENSE FROM DIGITAL THEATER SYSTEMS, INC. US PAT.?NO.5,451,942 AND OTHER WORLD - WIDE PATENTS ISSUED AND PENDING. DTS ,? DTS DIGITAL SURROUND , ARE TRADEMARKS OF DIGITAL THEATER SYST

34、EMS,?INC. COPYRIGHT 1996 DIGITAL THEATER SYSTEMS,INC. ALL RIGHTS RESERVED.MANUAL FOR CORRECT SETTING.ATTENTIONPOUR UN REGLAGECORPORATIONMODEL NO. RX - V795aREARAB: 6MIN. /SPEAKER: 6MIN. /SPEAKER: 4MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKERMAIN A OR BMAIN A OR BCENT

35、ERCENTERREARSWITCHED120V60Hz350 WATTS?60HzCORRECT, SE REPORTER AU MANUEL?DINSTRUCTIONSFM?ANTGNDGNDS VIDEO SIGNALREMOTE?CONTROLVIDEO SIGNALSPEAKERSMAINAC OUTLETIMPEDANCE SELECTORSET BEFORE POWER ON240 VOLTS AUDIO SIGNALEXTERNAL DECODER INPUTOUTPUTDIGITAL SIGNALON SCREEN SELECTORINPHONOCDININOUTINOUTV

36、CRDVD/LDDVD/LDTV/DBSDVD/LDTAPE/MDTV/DBSMONITOR?OUTOUTOUTINOUTVCRVCRMONITOR?OUTDVD/LD?COAXIALMAINCENTERMAINCENTERCENTERSUB?WOOFERSUB?WOOFERSURROUNDREAR?(SURROUND)REAR?(SURROUND)DVD/LDTV/DBSCD?OPTICALOPTICALS VIDEO VIDEO75 UNBAL.AM?ANT(REC)(PLAY)341AABBCAUTIONV398630 - A - OMADE IN MALAYSIASEE INSTRUC

37、TIONMANUFACTURED UNDER LICENSE FROM DOLBY LABORATORIES LICENSING?CORPORATION. DOLBY , AC-3 , PLO LOGIC , AND THE DOUBLE-D SYMBOL?ARE TRADEMARKS OF DOLBY LABORATORIES LICENSING CORPORATION.?COPYRIGHT 1992 DOLBY LABORATORIES, INC. ALL RIGHTS RESERVED.REARABA B: 6MIN. /SPEAKER: 6MIN. /SPEAKER: 4MIN. /S

38、PEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER:16MIN. /SPEAKERMAIN A OR BMAIN A OR BCENTERCENTERREARMANUFACTURED UNDER LICENSE FROM DIGITAL THEATER SYSTEMS, INC. US PAT.?NO.5,451,942 AND OTHER WORLD - WIDE PATENTS ISSUED AND PENDING. DTS ,? DTS DIGITAL SURROUND , ARE TRADEMAR

39、KS OF DIGITAL THEATER SYSTEMS,?INC. COPYRIGHT 1996 DIGITAL THEATER SYSTEMS,INC. ALL RIGHTS RESERVED.MANUAL FOR CORRECT SETTING.CORPORATIONMODEL NO. RX - V795aSWITCHED350 WATTS 50Hz100W MAX.N89MAINSRX-V795a/RDS/HTR-51704RX-V795a / RDSHTR-5170MRX-V795aRDS B modelWARNINGDo not change the IMPEDANCE SELE

40、CTOR switchsetting while the power to this unit is on, otherwisethis unit may be damaged.MRX-V795aRDS G modelMRX-V795aL modelFM?ANTGNDGNDS VIDEO SIGNALVIDEO SIGNALSPEAKERSMAINAC OUTLETIMPEDANCE SELECTORSET BEFORE POWER ON230 VOLTSAUDIO SIGNALEXTERNAL DECODER INPUTOUTPUTDIGITAL SIGNALON SCREEN SELECT

41、ORINPHONOCDININOUTVCRDVD/LDDVD/LDTV/DBSDVD/LDTAPE/MDTV/DBSMONITOR?OUTOUTOUTINOUTVCRVCRMONITOR?OUTDVD/LD?COAXIALMAINCENTERMAINCENTERCENTERSUB?WOOFERSUB?WOOFER100W MAX.SURROUNDREAR?(SURROUND)REAR?(SURROUND)DVD/LDTV/DBSCD?OPTICALOPTICALS VIDEO VIDEO75 UNBAL.AM?ANT(REC)(PLAY)341AABBCAUTIONV398650 - B -

42、OMADE IN MALAYSIASEE INSTRUCTIONMANUFACTURED UNDER LICENSE FROM DOLBY LABORATORIES LICENSING?CORPORATION. DOLBY , AC-3 , PLO LOGIC , AND THE DOUBLE-D SYMBOL?ARE TRADEMARKS OF DOLBY LABORATORIES LICENSING CORPORATION.?COPYRIGHT 1992 DOLBY LABORATORIES, INC. ALL RIGHTS RESERVED.MANUFACTURED UNDER LICE

43、NSE FROM DIGITAL THEATER SYSTEMS, INC. US PAT.?NO.5,451,942 AND OTHER WORLD - WIDE PATENTS ISSUED AND PENDING. DTS ,? DTS DIGITAL SURROUND , ARE TRADEMARKS OF DIGITAL THEATER SYSTEMS,?INC. COPYRIGHT 1996 DIGITAL THEATER SYSTEMS,INC. ALL RIGHTS RESERVED.MANUAL FOR CORRECT SETTING.CORPORATIONMODEL NO.

44、 RX - V795aRDSSWITCHED350 WATTS50HzMAINSREARABA B: 6MIN. /SPEAKER: 6MIN. /SPEAKER: 4MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER:16MIN. /SPEAKERMAIN A OR BMAIN A OR BCENTERCENTERREARFM?ANTGNDGNDS VIDEO SIGNALVIDEO SIGNALSPEAKERSMAINAC OUTLETSIMPEDANCE SELECTORSET BEF

45、ORE POWER ON230 VOLTSAUDIO SIGNALEXTERNAL DECODER INPUTOUTPUTDIGITAL SIGNALON SCREEN SELECTORINPHONOCDININOUTVCRDVD/LDDVD/LDTV/DBSDVD/LDTAPE/MDTV/DBSMONITOR?OUTOUTOUTINOUTVCRVCRMONITOR?OUTDVD/LD?COAXIALMAINCENTERMAINCENTERCENTERSUB?WOOFERSUB?WOOFER100W MAX. TOTALSURROUNDREAR?(SURROUND)REAR?(SURROUND

46、)DVD/LDTV/DBSCD?OPTICALOPTICALS VIDEO VIDEO75 UNBAL.REARABA B: 6MIN. /SPEAKER: 6MIN. /SPEAKER: 4MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER: 8MIN. /SPEAKER:16MIN. /SPEAKERMAIN A OR BMAIN A OR BCENTERCENTERREARAM?ANT(REC)(PLAY)341AABBCAUTIONV398640 - L - OMADE IN MALAYSIASEE INSTRUC

47、TIONMANUFACTURED UNDER LICENSE FROM DOLBY LABORATORIES LICENSING?CORPORATION. DOLBY , AC-3 , PLO LOGIC , AND THE DOUBLE-D SYMBOL?ARE TRADEMARKS OF DOLBY LABORATORIES LICENSING CORPORATION.?COPYRIGHT 1992 DOLBY LABORATORIES, INC. ALL RIGHTS RESERVED.MANUFACTURED UNDER LICENSE FROM DIGITAL THEATER SYS

48、TEMS, INC. US PAT.?NO.5,451,942 AND OTHER WORLD - WIDE PATENTS ISSUED AND PENDING. DTS ,? DTS DIGITAL SURROUND , ARE TRADEMARKS OF DIGITAL THEATER SYSTEMS,?INC. COPYRIGHT 1996 DIGITAL THEATER SYSTEMS,INC. ALL RIGHTS RESERVED.MANUAL FOR CORRECT SETTING.CORPORATIONMODEL NO. RX - V795aSWITCHED350 WATTS

49、50HzMAINSFM?ANTGNDGNDS VIDEO SIGNALVIDEO SIGNALSPEAKERSMAINAC OUTLETSIMPEDANCE SELECTORSET BEFORE POWER ON230 VOLTSAUDIO SIGNALEXTERNAL DECODER INPUTOUTPUTDIGITAL SIGNALON SCREEN SELECTORINPHONOCDININOUTVCRDVD/LDDVD/LDTV/DBSDVD/LDTAPE/MDTV/DBSMONITOR?OUTOUTOUTINOUTVCRVCRMONITOR?OUTDVD/LD?COAXIALMAIN

50、CENTERMAINCENTERCENTERSUB?WOOFERSUB?WOOFER100W MAX. TOTALSURROUNDREAR?(SURROUND)REAR?(SURROUND)DVD/LDTV/DBSCD?OPTICALOPTICALS VIDEO VIDEO75 UNBAL.AM?ANT(REC)(PLAY)341AABBCAUTIONV398660 - G - OMADE IN MALAYSIASEE INSTRUCTIONMANUFACTURED UNDER LICENSE FROM DOLBY LABORATORIES LICENSING?CORPORATION. DOL