Yamaha-RXV495-avr-sm(1) 维修电路原理图.pdf

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1、100650AV RECEIVERRX-V495/RX-V495RDS/HTR-5140/HTR-5140RDSTO SERVICE PERSONNEL . 1REMOTE CONTROL PANELS. 1FRONT PANELS. 2REAR PANELS . 34SPECIFICATIONS. 56INTERNAL VIEW . 7DISASSEMBLY PROCEDURES . 7SELF DIAGNOSIS FUNCTION . 819FACTORY PRESET . 20ICONTENTSAMP ADJUSTMENT . 21TUNER ADJUSTMENT. 2225IC DAT

2、A .2635DISPLAY DATA . 36BLOCK DIAGRAM. 3739PRINTED CIRCUIT BOARD . 4057SCHEMATIC DIAGRAM . 5865PARTS LIST . 6681REMOTE CONTROL TRANSMITTER . 82SERVICE MANUALIMPORTANT NOTICEThis manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.It has been assumed that b

3、asic service procedures inherent to the industry, and more specifically YAMAHAProducts, are already known and understood by the users, and have therefore not been restated.WARNING:Failure to follow appropriate service and safety procedures when servicing this productmay result in personal injury, de

4、struction of expensive components, and failure of theproduct to perform as specified. For these reasons, we advise all YAMAHA productowners that any service required should be performed by an authorized YAMAHARetailer or the appointed service representative.IMPORTANT:The presentation or sale of this

5、 manual to any individual of firm does not constituteauthorization, certification or recognition of any applicable technical capabilities,or establish 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 res

6、earch,engineering, and service departments of YAMAHA are continually striving to improve YAMAHA products.Modifications are, therefore, inevitable and specifications are subject to change without notice or obligationto retrofit. Should any discrepancy appear to exist, please contact the distributors

7、Service Division.WARNING:Static discharges can destroy expensive components. Discharge any static electricityyour body may have accumulated by 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 repla

8、cement. Recheck all work beforeyou apply power to the unit.RadioFans.CN 收音机爱 好者资料库1RX-V495/RX-V495RDS/HTR-5140/HTR-5140RDSTO SERVICE PERSONNEL1. Critical Components information.Components having special characteristics are marked and must bereplaced with parts having specifications equal to those or

9、iginallyinstalled.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 current mu

10、st 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 chemic

11、als 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 sold

12、er 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.REMOTE CONTROL PANELSU,C,R,T,A and L modelsB and G modelsWALLOUTLETEQUIPM

13、ENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLECAUTIONF804: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE 8.0A, 250V FUSE.CAUTIONF804: REPLACE WITH SAME TYPE 8.0A, 250V FUSE.ATTENTIONF804: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 8.0A, 250V FUSE.A VTUNERC

14、DTAPE/MDDVD/LDVCRAMPPOWERTVDVDMENUCBL/DBSA/B/C/D/EDISC SKIPPRESETPRG +PRG +TESTCHEFFECTDISPRETURNINDEXS/DA/BVCR RECTV INPUTTITLEMENUTIME/LEVELSET MENU+10+100CHMUTETVTVVOLUMECODESETSELECTENTERCLEARSLEEP213TUNERCDTAPE/MD546TV/DBSDVD/LDVCRV-AUXPHONOEXT. DEC.8790TUNERCDTAPE/MDDVD/LDVCRAMPPOWERTVDVDMENUC

15、BL/DBSA/B/C/D/EDISC SKIPPRESETPRG +PRG +TESTCHEFFECTDISPRETURNINDEXS/DA/BVCR RECTV INPUTTITLEMENUTIME/LEVELSET MENU+10+100CHMUTETVTVVOLUMECODESETSELECTENTERCLEARSLEEPA213TUNERCDTAPE/MD546TV/DBSDVD/LDVCRV-AUXPHONOEXT. DEC.8790RAV201V269020-EURAV200V269010-USDIR BDIR ADIR BDIR ARadioFans.CN 收音机爱 好者资料库

16、2RX-V495/RX-V495RDS/HTR-5140/HTR-5140RDS FRONT PANELSM RX-V495 (U, C, R, T, A and L models)M RX-V495RDS (B and G models)M HTR-5140 (U, C, T and A models)M HTR-5140RDS (G model)3RX-V495/RX-V495RDS/HTR-5140/HTR-5140RDS REAR PANELSM RX-V495/HTR-5140 U modelM RX-V495/HTR-5140 C modelM RX-V495 R modelM R

17、X-V495/HTR-5140 T model4RX-V495/RX-V495RDS/HTR-5140/HTR-5140RDSM RX-V495/HTR-5140 A modelM RX-V495RDS B modelM RX-V495RDS/HTR-5140RDS G modelM RX-V495 L model5RX-V495/RX-V495RDS/HTR-5140/HTR-5140RDSFM SECTIONTuning RangeU, C models87.5 to 107.9MHzR, T models (Frequency Step: 100kHz)87.5 to 108.0MHz(

18、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, 1kHz, 100% mod23V(38.5dBf)Usable Sensitivity (DIN)A, B, G, L models onlyDIN, Mono(S/N 26dB)0.9VDIN, Stereo(S/N 46dB)28VAlternate Ch

19、annel 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/Stereo81dB/75dBA, B, G, L models (DIN-Weighted, 40kHz Dev.)Mono/Stereo75dB/69dBHarmonic Distortion (1kHz)Mono/Stereo0.1%/0.2%Stereo Separa

20、tion (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 unbalancedSPECIFICATIONSAUDIO SECTIONMinimum RMS Output Power Per Channel(Power Amp. Section)MAIN L/R, REAR L/R20Hz to 20kHz, 0.04% THD, 860W+6

21、0W1kHz, 0.07% THD, 870W+70WCENTER20Hz to 20kHz, 0.04% THD, 860W1kHz, 0.07% THD, 870WMaximum Power (EIAJ)R, T models onlyMAIN L/R, REAR L/R1kHz, 10% THD, 895W+95WCENTER, 1kHz, 10% THD, 895WDynamic Power Per Channel (IHF)MAIN L/R8/6/4/280W+80W/100W+100W/120W+120W/145W+145WDIN Standard Output Power Per

22、 ChannelG model onlyMAIN L/R, 1kHz, 0.7% THD, 4100W+100WDynamic Headroom(8)U, C models only1.55dBIEC PowerG model onlyMAIN L/R, 1kHz, 0.04% THD, 865W+65WPower Band WidthMAIN L/R, 0.1% THD, 30W, 810Hz to 50kHzDamping Factor (SPEAKER A)MAIN L/R, 20Hz to 20kHz, 860Input Sensitivity/Input ImpedancePHONO

23、 (MM)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/1.2KHeadpho

24、ne Jack Rated Output/ImpedanceCD etc., Input=1kHz, 150mV, RL=80.4V/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(30W/8)0.025%Signal-to-Noise R

25、atio(IHF-A Network)PHONO (MM), Input 5mV shorted, REC OUTU, C, R, T models86dBA, B, G, L models81dBCD etc,(EFFECT OFF), Input 150mV shorted, SP OUT96dBResidual Noise(IHF-ANetwork)MAIN L/R, SP OUT150VChannel Separation(Vol. 30dB, EFFECT OFF)PHONO, Input shorted, 1kHz/10kHz60dB/55dBCD etc, Input 5.1k

26、terminated, 1kHz/10kHz60dB/45dBTone Control CharacteristicsBASS: Boost/Cut10dB(50Hz): Turnover Frequency350HzTREBLE: Boost/Cut10dB(20kHz): Turnover Frequency3.5kHzFilter CharacteristicsMAIN, REAR SP SMALL : H.P.F.fc=90Hz, 12dB/oct.SUB WOOFER : L.P.F.fc=90Hz, 18dB/oct.AM SECTIONTuning RangeU, C model

27、s530 to 1710kHzR, T models (Frequency Step : 10kHz)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 antenna6RX-V495/RX-V495RDS/HTR-5140/HTR-5140RDSGENERALPower SupplyU, C,

28、modelsAC120V, 60HzR modelAC110/120/220/240V, 50/60HzT modelAC220V, 50HzA modelAC240V, 50HzB, G, L modelsAC230V, 50HzPower ConsumptionU model230WC model260W/340VAR, T models230WA, B, G, L models230WMaximum Power ConsumptionR model only5CH Simultaneous output, 10% THD630WAC OutletU, C, R, T, G, L mode

29、ls, Switched x 2100W max(Total)U, C, R, T, A models11.2kg(24Ibs. 11 oz)B, G models11.5kg(25Ilbs, 5 oz)A, B models, Switched x 1100W maxDimensions(W x H x D)435 x 151 x 391mm(17/1/8 x 5-15/16 x 15-3/8)WeightAccessoriesAM loop antenna x 1Indoor FM antenna x 1Remote Control Transmitter x 1Battery (size

30、 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 modelVIDEO SECTIONVideo Signal TypeU, C modelsNTSCR modelNTSC/PALT, A, B, G, L modelsPALVideo Signal Lev

31、el1Vp-p/75Maximum Input Level1.5Vp-pSignal-to-Noise Ratio50dBMonitor Output Frequency Response(3dB) 5Hz10MHzDIMENSIONSManufactured under license from Dolby LaboratoriesLicensing Corporation.DOLBY , AC-3, Pro Logic, andthe double-D symbol are trademarks of DolbyLaboratories Licensing Corporation. Cop

32、yright 1992 DolbyLaboratories, inc. All rights reserved.Units: mm (inch)21.5(7/8)435(17-1/8)349.5(13-3/4)391(15-3/8)130(5-3/32)151(5-15/16)20(13/16)21(27/32)WARNINGDo not change the IMPEDANCE SELECTOR switchsetting while the power to this unit is on, otherwisethis unit may be damaged.IMPEDANCE SELEC

33、TOR7RX-V495/RX-V495RDS/HTR-5140/HTR-5140RDSDISASSEMBLY 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.Fig.11 23 4 567890ABCEFGHIJKLD1 POWER TRA

34、NSFORMER2 P.C.B. MAIN (3)3 P.C.B. OPERATION (7)(R, T models only)4 P.C.B. OPERATION (3)5 P.C.B. MAIN (4)6 P.C.B. MAIN (8)7 P.C.B. OPERATION (6)8 P.C.B. MAIN (2)9 P.C.B. MAIN (1)0 P.C.B. INPUT (2)A P.C.B. INPUT (1)B P.C.B. INPUT (3)C P.C.B. TUNERD P.C.B. MAIN (5)E P.C.B. OPERATION (5)F P.C.B. OPERATI

35、ON (4)G P.C.B. MAIN (7)H P.C.B. OPERATION (1)I P.C.B. MAIN (6)J P.C.B. INPUT (4)K P.C.B. OPERATION (2)L P.C.B. DSPINTERNAL VIEW#14#8#7#13#9Front PanelTop CoverKnobKnob11233Knob8RX-V495/RX-V495RDS/HTR-5140/HTR-5140RDS SELF DIAGNOSIS FUNCTION1. PURPOSE AND OPERATIONThe RX-V495/RX-V495RDS/HTR-5140/HTR-

36、5140RDS has a Self Diagnosis Function to locate a faulty part, if any, by inspecting and taking measurements.There are 11 main items in the diagnostic menu and some of them have sub-menu items as listed below.No.1234567891011SUB MENU1. MAIN BYPASS2. DSP 0dB1. YSS908SRAM2. YSS9083. DSP FULL BIT1. STA

37、TUS (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 : SWFR7. CENTER : NONE8. CENTER : SMALLREAR : SMALL9. FRONT MIX1. EFFECT OFF2. VFD DISP OFF3. VFD DISP ALL4. CHECKED PATTERN5. RELEASE D

38、ATE1. ALL2. MAIN L3. CENTER4. MAIN R5. REAR R6. REAR L7. LFE1. INHIBIT(Inhibit Memory Init)2. RESERVED (Init. Memory)1. 2. KEY3. TUNING SIGNAL5. PS PROTECTION1. DSP CPU STATUS2. CHANNEL STATUS3. VERSION INFORMATION4. CHECK SUM5. BSI0 (AC3/DTS)6. BSI1 7. BSI28. BSI39. BSI4 10. BSI5 1. MAIN MC CHECK S

39、UM2. SUB MC CHECK SUM3. MAIN M.C. VERSION4. SUB M.C. VERSION5. PORT INFORMATION6. EXITMAIN MENUANALOG THROUGHDSP THROUGHAC3/DTS THROUGHPRO LOGICSPEAKERS SETEFFECT OFF /DISPLAY CHECKMANUAL TESTFACTORY PRESETAD DATA CHECKSTATUSVERSION CHECK /DSP CPU SUM /EXITREMOTE CONTROL CODE (KEY)7A88 (1 DSP mode)

40、7A89 (2 DSP 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) 7A12 (ENTER DSP mode) 4. DC PROTECTION 9RX-V495/RX-V495RDS/HTR-5140/HTR-5140RDSMEMORYSTANDBY/ONEDITMODETUNINGMANL/AUTO FMAUTO/MANL MONOFM/AMTUNI

41、NGDOWNUPINPUT MODE1.2.3.4.5.6.7.EFFECT LEVEL:MUTING: OFFINPUT (VIDEO): DVD/LD (DVD/LD)CENTER SPEAKER: LARGEREAR SPEAKER: LARGEMAIN SPEAKER: LARGELFE/BASS OUT: SWFRCHANNELCENTERR SURL SURSWFRLEVEL (dB)0000C. Start-up displayThe protection function information appears on the front panel display of the

42、 main unit.2. BEGINNING AND CANCELLATION(1) STARTING UP THE FUNCTION AND THE DISPLAYAfter starting up, menu No. 1 is selected.A. How to start diagnostic programUsing the front panel keys of the main unit.hold down the INPUT MODE and FM/AM keys simultaneously (Step 1), and press the STANDBY/ON key (S

43、tep 2); Plug in the AC power cord to the outlet, and when the main power off condition;submenu No. 1 of diagnosis main menu No. 1 will start.B. Settings for start-up of diagnostic programThe settings used when starting the diagnostic program are as follows.FM/AM keyFM/AM keyINPUT MODE keyFRONT PANEL

44、Step1. Press the STANDBY/ON keyStep2. Hold down the INPUT MODE and FM/AM key simultaneously.10RX-V495/RX-V495RDS/HTR-5140/HTR-5140RDSHistory of protection functionEach case of the history of the protection function is displayed as shown below.Appears when the protection function has not been activat

45、ed.Appears when the current protection function has been activated.When power is turned on in an abnormal status, the power relaywill come on, protection will operate immediately, and power willturn off.Appears when the power protection function has been activated.For the % value, the voltage at tha

46、t point is shown by 5V/100%.When power is turned on in an abnormal status, power will turn offafter half a second.Appears when the power amp DC protection function has been activated.For the % value, the voltage at that point is shown by 5V/100%.When power is turned on in an abnormal status, power w

47、ill turn offafter two seconds.FL display at start-up of diagnostic programWhen the diagnostic program has started, the history (*2) of the protection function (*1) is displayed. If the protectionfunction has been activated in the past, the type and voltage value are displayed. After a few seconds th

48、e diagnosisfunction menu will appear.(*1) If a faulty condition is detected such as excessive current, a bad power supply or excessive amplifier DC offset, the Power will be switched OFF automatically.(*2) The protection records will be cleared when RESERVED is selected in diagnosis menu No. 8 and F

49、ACTORYPRESET is engaged.1 DVD/LDNO PROTECT1 DVD/LDI PROTECT1 DVD/LDPS : 21%1 DVD/LDDC : 19%(2) EXITING METHODThe diagnosis function can be exited by any of the following procedures. Take care with the setting of backup memoryinitialization menu (diagnosis No. 8) when releasing the diagnosis function

50、:1. Select diagnosis menu No. 11/submenu No. 6 EXIT.2. Press the STANDBY/ON key on the main unit or STANDBY key on the remote control to turn power off.11RX-V495/RX-V495RDS/HTR-5140/HTR-5140RDS Selection by using the remote control unitThe remote control codes in the menu list (See right column on p