Yamaha-RXV496-avr-sm(1) 维修电路原理图.pdf

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1、SERVICE MANUALIMPORTANT NOTICEThis manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHAProducts, are already known and understood by the users, and have

2、 therefore not been restated.WARNING:Failure to follow appropriate service and safety procedures when servicing this productmay result in personal injury, destruction of expensive components, and failure of theproduct to perform as specified. For these reasons, we advise all YAMAHA productowners tha

3、t any service required should be performed by an authorized YAMAHARetailer or the appointed service representative.IMPORTANT:The presentation or sale of this manual to any individual of firm does not constituteauthorization, certification or recognition of any applicable technical capabilities,or es

4、tablish a principle-agent relationship of any form.The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research,engineering, and service departments of YAMAHA are continually striving to improve YAMAHA products.Modifications are, therefore, inevitab

5、le and specifications are subject to change without notice or obligationto retrofit. Should any discrepancy appear to exist, please contact the distributors Service Division.WARNING:Static discharges can destroy expensive components. Discharge any static electricityyour body may have accumulated by

6、grounding yourself to the ground buss in the unit(heavy gauge black wires connect to this buss).IMPORTANT:Turn the unit OFF during disassembly and part replacement. Recheck all work beforeyou apply power to the unit.100704AV RECEIVERRX-V496/RX-V496RDSHTR-5240/HTR-5240RDSTO SERVICE PERSONNEL . 1REMOT

7、E CONTROL PANELS. 1FRONT PANELS. 2REAR PANELS . 34SPECIFICATIONS. 56INTERNAL VIEW . 7DISASSEMBLY PROCEDURES . 7SELF DIAGNOSIS FUNCTION . 819FACTORY PRESET . 20ICONTENTSAMP ADJUSTMENT . 21TUNER ADJUSTMENT. 2225IC DATA .2634DISPLAY DATA . 35BLOCK DIAGRAM. 3639PRINTED CIRCUIT BOARD . 4059SCHEMATIC DIAG

8、RAM . 6067PARTS LIST . 6885REMOTE CONTROL TRANSMITTER . 8687RadioFans.CN 收音机爱 好者资料库1RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDSI TO SERVICE PERSONNEL1. Critical Components informationComponents having special characteristics are marked ! and must be replaced with parts having specifications equal to tho

9、se originallyinstalled.2. Leakage Current Measurement (For 120V Model only)When service has been completed, it is imperative that you verify thatall exposed conductive surfaces are properly insulated from supplycircuits.Meter impedance should be equivalent to 1500 ohm shunted by 0.15F.Leakage curren

10、t must not exceed 0.5mA.Be sure to test for leakage with the AC plug in both polarities.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 ch

11、emicals found by the California Health and Welfare Agency (and 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

12、solder and your skin! When soldering, do not inhale solder fumes or expose eyesto solder/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 PANELSM U,C,R,T,A and L modelsM B and G modelsWALLOU

13、TLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLECAUTIONF804: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE 6.0A,125V FUSE.ATTENTIONF804: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 6.0A, 125V FUSEA VTUNERAMPTAPE?/MDCBL?/SATCDTVVCRDVD?/LDDVD?MENUPOWE

14、R2TUNER3TAPE/MD1CD5SAT/D-TV6VCR4DVD/LD8V-AUX9EXT.DEC.7PHONOENTER+10CLEAR+1000A/B/C/D/EMUTEPRG +PRG -TVSELECTDIR ADIR BDISC SKIP?PRESETEFFECTCHTESTDISPINDEXSLEEPRETURNA/BTV INPUTVCR RECMENUTITLE+-SET MENUTIME/LEVELRAV203V473170 US-CHCODESETVOLUMETVTUNERAMPTAPE?/MDCBL?/SATCDTVVCRDVD?/LDDVD?MENUPOWER2T

15、UNER3TAPE/MD1CD5SAT/D-TV6VCR4DVD/LD8V-AUX9EXT.DEC.7PHONOENTER+10CLEAR+1000A/B/C/D/EMUTEPRG +PRG -TVSELECTDIR ADIR BDISC SKIP?PRESETEFFECTCHTESTDISPINDEXSLEEPRETURNA/BTV INPUTVCR RECMENUTITLE+-SET MENUTIME/LEVELRAV204V473190 EU-CHCODESETVOLUMETVRadioFans.CN 收音机爱 好者资料库2RX-V496/RX-V496RDS/HTR-5240/HTR-

16、5240RDSI FRONT PANELSM RX-V496 U, C, A and L modelsBL (Black model) R and T modelsBL (Black model) and GD (Gold model)RX VM RX-V496RDS B modelBL (Black model) G modelBL (Black model) and TI (Titan model)M HTR-5240 U, C, T and A modelsBL (Black model)M HTR-5240RDS G modelBL (Black model)3RX-V496/RX-V

17、496RDS/HTR-5240/HTR-5240RDSI REAR PANELSM RX-V496/HTR-5240 U modelM RX-V496/HTR-5240 C modelM RX-V496 R modelM RX-V496/HTR-5240 T model4RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDSM RX-V496/HTR-5240 A modelM RX-V496RDS B modelM RX-V496RDS/HTR-5240RDS G modelM RX-V496 L model5RX-V496/RX-V496RDS/HTR-5240/H

18、TR-5240RDSI SPECIFICATIONSIFM SECTIONTuning RangeU, C models87.5 to 107.9MHzR, T models (Frequency Step: 100kHz)87.5 to 108.0MHz(Frequency Step: 50kHz)87.50 to 108.00MHzA, B, G, L models87.50 to 108.00MHz50dB Quieting Sensitivity (IHF)U, C, R, T models onlyMono, 1kHz, 100% mod1.6V(15.3dBf)Stereo, 1k

19、Hz, 100% mod23V(38.5dBf)Usable Sensitivity (DIN)A, B, G, L models onlyDIN, Mono(S/N 26dB)0.9VDIN, Stereo(S/N 46dB)28VAlternate Channel SelectivityU, C, R, T models (400kHz)75dBA, B, G, L models (300kHz)Selectivity(two signals, 40kHz Dev.)55dBSignal-to-Noise RatioU, C, R, T models (IHF)Mono/Stereo81d

20、B/75dBA, B, G, L models (DIN-Weighted, 40kHz Dev.)Mono/Stereo75dB/69dBHarmonic Distortion (1kHz)Mono/Stereo0.1%/0.2%Stereo Separation (1kHz)48dBFrequency Response (20Hz to 15kHz)01dBOutput Level (1kHz)U, C, R, T models (100% mod.)550mVA, B, G, L models (40kHz Dev.)550mVAntenna Input75 unbalancedIAUD

21、IO SECTIONMinimum RMS Output Power Per Channel(Power Amp. Section)U, C modelsMAIN L/R, REAR L/R20Hz to 20kHz, 0.06% THD, 870W+70W1kHz, 0.09% THD, 880W+80WCENTER20Hz to 20kHz, 0.06% THD, 870W1kHz, 0.09% THD, 880WR,T,A,B,G,L modelsMAIN L/R, REAR L/R20Hz to 20kHz, 0.06% THD, 865W+65W1kHz, 0.09% THD, 87

22、0W+70WCENTER20Hz to 20kHz, 0.06% THD, 865W1kHz, 0.09% THD, 870WMaximum Power (EIAJ)R, T models onlyMAIN L/R, REAR L/R1kHz, 10% THD, 8100W+100WCENTER, 1kHz, 10% THD, 8100WDynamic Power Per Channel (IHF)MAIN L/RU, C models8/6/4/2100W+100W/120W+120W/140W+140W/160W+160WR,T models8/6/4/2 90W+90W/110W+110

23、W/130W+130W/150W+150WDIN Standard Output Power Per ChannelG model onlyMAIN L/R, 1kHz, 0.7% THD, 4100W+100WDynamic Headroom(8)U, C models only1.55dBIEC PowerG model onlyMAIN L/R, 1kHz, 0.06% THD, 870W+70WDamping Factor (SPEAKER A)MAIN L/R, 20Hz to 20kHz, 860Input Sensitivity/Input ImpedancePHONO (MM)

24、2.5mV/47kCD etc.150mV/47kMAIN L/R (EXTERNAL DECODER)150mV/47kCENTER150mV/40kSURROUND L/R150mV/40kSUB WOOFER150mV/40kMaximum Input Signal Level (1kHz)PHONO (MM), 0.1% THD100mVCD etc. (EFFECT ON), 0.5% THD2.2VOutput Level/Output ImpedanceREC OUT150mV/1.2kSUB WOOFER (MAIN SP : SMALL)4V/1.2kHeadphone Ja

25、ck Rated Output/ImpedanceCD etc., Input=1kHz, 150mV, RL=80.47V/390Frequency Response(20Hz to 20kHz)CD etc., MAIN00.5dBRIAA Equalization DeviationPHONO (MM)00.5dBTotal Harmonic Distortion(20Hz to 20kHz)PHONO (MM) to REC OUT (1V)0.02%CD etc.(EFFECT OFF) to MAIN SP OUT(35W/8)0.025%Signal-to-Noise Ratio

26、(IHF-A Network)PHONO (MM), Input shorted, REC OUTU, C, R, T models86dBA, B, G, L models81dBCD etc,(EFFECT OFF), Input shorted, SP OUT96dBResidual Noise(IHF-A Network)MAIN L/R, SP OUT150VChannel Separation(Vol. 30dB, EFFECT OFF)PHONO, Input shorted, 1kHz/10kHz60dB/55dBCD etc, Input 5.1k terminated, 1

27、kHz/10kHz60dB/45dBTone Control CharacteristicsBASS: Boost/Cut10dB(50Hz): Turnover Frequency350HzTREBLE: Boost/Cut10dB(20kHz): Turnover Frequency3.5kHzFilter Characteristicsfc=90Hz, 12dB/oct.MAIN, CENTER, REAR SP SMALL : H.P.F.SUB WOOFER : L.P.F.fc=90Hz, 18dB/oct.6RX-V496/RX-V496RDS/HTR-5240/HTR-5240

28、RDSIGENERALPower SupplyU, C modelsAC120V, 60HzR modelAC110/120/220/240V, 50/60HzT modelAC220V, 50HzStandby Power ConsumptionU, C, models0.90WA, B, G, L models0.96WA modelAC240V, 50HzB, G, L modelsAC230V, 50HzPower ConsumptionU, R, T, A, B, G, L models210WC model220W/290VAMaximum Power ConsumptionR m

29、odel only5CH Simultaneous output, 10% THD500WAC OutletU, C, R, T, G, L models, Switched x 2100W max(Total)A, B models, Switched x 1100W maxDimensions(W x H x D)435 x 151 x 390.5mm(17-1/8 x 5-15/16 x 15-3/8)Weight10kg(23Ibs.)AccessoriesRemote Control Transmitter x 1Indoor FM antenna x 1AM loop antenn

30、a x 1Battery (size AAA, R03) x 4* Specifications subject to change without notice.U . U. S. A. modelA .Australian modelC . Canadian modelB .British modelR . General modelG .European modelT. China modelL .Singapore modelIAM SECTIONTuning RangeU, C models530 to 1710kHzR, T models (Frequency Step : 10k

31、Hz)530 to 1710kHz(Frequency Step : 9kHz)531 to 1611kHzA, B, G, L models531 to 1611kHzUsable Sensitivity300V/mSignal-to-Noise Ratio52dBOutput Level (1kHz, 30% mod.)150mVAntennaLoop antennaIVIDEO SECTIONVideo Signal TypeU, C modelsNTSCR modelNTSC/PALT, A, B, G, L modelsPALVideo Signal Level1Vp-p/75S-V

32、ideo Signal LevelY:1Vp-p/75,C:0.286Vp-p/75Maximum Input Level1.5Vp-pSignal-to-Noise Ratio50dBMonitor Output Frequency Response(3dB) 5Hz10MHzG DIMENSIONSUnits: mm (inch)21.5(7/8)435(17-1/8)349.5(13-3/4)390.5(15-3/8)130(5-3/32)151(5-15/16)19.5(13/16)21(27/32)WARNINGDo not change the IMPEDANCE SELECTOR

33、 switchsetting while the power to this unit is on, otherwisethis unit may be damaged.IMPEDANCE SELECTORManufactured 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 Sys

34、tems, Inc. Copyright 1996 Digital Theater Systems, inc. All rights reserved.Manufactured under license from Dolby Laboratories.DOLBY, AC-3, PRO LOGIC, and the double-Dsymbol are trademarks of Dolby Laboratories.Confidential unpublished works. 1992-1997 Dolby Laboratories. All rights reserved.BL.Blac

35、k modelTI.Titan modelGD.Gold model7RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDSI DISASSEMBLY PROCEDURES(Remove parts in disassembly order as numbered.)1. Removal of Top CoverRemove 4 screws (1) and 4 screws (2) in Fig. 1.2. Removal of Front Panela. Remove 5 knobs.b. Remove 6 screws (3) in Fig. 1.3. Befor

36、e Checking and Parts Replacement of Main Amplifier P.C.B. MAIN (1)a. Remove 2 screws (4) fixing the Main Speaker terminal in Fig. 2.b. Take out the P.C.B. MAIN (3) to Left side in Fig. 4.c. Remove 3 screws (5) fixing the Center/Rear Speaker terminal and the Heat Sink in Fig. 2.d. Remove the Binding

37、Tie fixing P.C.B. MAIN (1)s wiring in Fig. 3.Note) When the assembling , P.C.B. MAIN (1)s wiring regardfully for ungenerated noise induction.e. Remove 2 screws (6) fixing the Main Unit in Fig. 3.f.While pull out the Main Unit to the Front Panel side, place the Main Unit on its side as shown in Fig.

38、4.g. Connect to ground by shorting between G201 on P.C.B. MAIN (1) and the chassis.Note) When unconnected to ground, the protection function is active.h. Insert the insulator seet (Cloth, Paper or equivalent) so that unshorted the between bottom side of P.C.B. MAIN (1) and the chassis.i.Insert the i

39、nsulator seet (Cloth, Paper or equivalent) so that unshorted the between back side of Front Paneland the Heat Sink.j.Using a string, fix the between screw-hole of the Heat Sink and screw-hole of the Front Panel in Fig. 4.Fig.1Fig.2Fig.3Fig.41 POWER TRANSFORMER2 P.C.B. MAIN (6)3 P.C.B. MAIN (5)4 P.C.

40、B. MAIN (2)5 P.C.B. MAIN (7)(R, T models only)6 P.C.B. MAIN (3)7 P.C.B. MAIN (1)8 P.C.B. OPERATION (5)9 P.C.B. OPERATION (6)0 P.C.B. INPUT (3)A P.C.B. INPUT (1)B P.C.B. TUNERC P.C.B. OPERATION (7)D P.C.B. MAIN (4)E P.C.B. INPUT (2) F P.C.B. OPERATION (2)G P.C.B. OPERATION (1)H P.C.B. OPERATION (4)I

41、P.C.B. OPERATION (3)J P.C.B. INPUT (4)K P.C.B. DSPI INTERNAL VIEWFront Panel4Center/Rear Speaker Terminal5Rear PanelMain Speaker TerminalTop CoverKnobBA0987654321KJIHGFDEC12133Main UnitHeat SinkHeat SinkFront PanelString6Binding TieP.C.B. MAIN (1)Main UnitP.C.B. MAIN (1)ChassisP.C.B.MAIN (3)6G2018RX

42、-V496/RX-V496RDS/HTR-5240/HTR-5240RDSI SELF DIAGNOSIS FUNCTION1. PURPOSE AND OPERATIONThe RX-V496/RX-V496RDS/HTR-5240/HTR 5240RDS has a Self Diagnosis Function to locate a faulty part, if any, by inspecting and taking measurements.There are 12 main items in the diagnostic menu and sub-menu items as

43、listed below.No.1234567891012SUB-MENU1. MAIN BYPASS2. DSP 0dB1. YSS+SRAM M2. YSS M3. DSP FULL BIT1. STATUS (BINARY FORM)1. CENTER LARGE2. EFFECT OFF1. MAIN : SMALL 0dB2. MAIN : LARGE 0dB3. MAIN : LARGE 10dB4. LFE/BASS : MAINCENTER : NONE5. LFE/BASS : MAIN6. LFE/BASS : SUBWOOFER7. CENTER : NONE8. CEN

44、TER : SMALLREAR : SMALL9. FRONT MIX1. (EFFECT OFF)2. ALL SEGMENTS TURN OFF3. ALL SEGMENTS TURN ON4. ALTERNATE SEGMENTS TURN ON5. SOFTWARE RELEASE DATE1. ALL2. MAIN L3. CENTER4. MAIN R5. REAR R6. REAR L7. LFE1. INHIBIT (Inhibit Memory Initialize)2. RESERVED (Reserve Memory Initialize)1. 2. KEY1, KEY2

45、3. TUNER SIGNAL LEVEL5. PS PROTECTION1./2. DSP STATUS (1)/(2)3./4. CHANNEL STATUS (1)/(2)5./6. BSI0 (1)/(2)7./8. BSI1 (1)/(2)9./10. BSI2 (1)/(2)11./12. BSI3 (1)/(2)13./14. BSI4 (1)/(2)15./16. BSI5 (1)/(2)1. CHECK SUM2. VERSION3. PORT SETTING4. EXITMAIN MENUANALOG THROUGHDSP THROUGHAC3/DTS THROUGHPRO

46、 LOGICSPEAKERS SETDISPLAY CHECK(EFFECT OFF)MANUAL TESTFACTORY PRESETAD DATA CHECKSTATUS INFORMATION FROM DSPCHECK SUM/VERSION/PORT SETTING/EXITREMOTE CONTROL CODE (KEY)7A88 (1 DSP mode)111. CHECK SUM MODIFICATION DATA EEPROM DATA2. WRITING CONFIRMATION3. START WRITINGEEPROM WRITINGFUNCTION 7A89 (2 D

47、SP mode) 7A8A (3 DSP mode) 7A8B (4 DSP mode)7A8C (5 DSP mode)7A8D (6 DSP mode)7A8E (7 DSP mode)7A8F (8 DSP mode)7A90 (9 DSP mode)7A91 (0 DSP mode) 4. DC PROTECTION 9RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDS1.2.3.4.5.6.7.EFFECT LEVEL:MUTING: OFFINPUT (VIDEO): DVD/LD (DVD/LD)CENTER SPEAKER: LARGEREAR SP

48、EAKER: LARGEMAIN SPEAKER: LARGELFE/BASS OUT: SWFRCHANNELCENTERR SURL SURSWFRLEVEL (dB)0000C. Start-up displayThe protection history information appears on the front panel display.2. BEGINNING AND CANCELLATION(1) Starting up the function and the displayAfter starting up, main menu No.1 is selected.A.

49、 How to start diagnostic programUsing the front panel keys of the main unitPlug in the AC power cord. With the Power OFF, hold down the PRESET/TUNING and A/B/C/D/E keys simultaneously (Step 1), then press the STANDBY/ON key (Step 2).Sub menu No. 1 of the diagnosis main menu No. 1 will start.B. Setti

50、ngs for start-up of diagnostic programThe settings used when starting the diagnostic program are as follows.A/B/C/D/E keySTANDBY/ON keyPRESET/TUNING keyFRONT PANELStep2. Press the STANDBY/ON key.Step1. Hold down the PRESET/TUNING and A/B/C/D/E key simultaneously.10RX-V496/RX-V496RDS/HTR-5240/HTR-524