Yamaha-DSPA5-avr-sm 维修电路原理图.pdf

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 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 that 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 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 research,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 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 replacement. Recheck all work beforeyou apply power to the unit.100712AV AMPLIFIERDSP-A5TO SERVICE PERSONNEL . 1REMOTE CONTROL PANELS. 1REAR PANELS . 2SPECIFICATIONS. 34INTERNAL VIEW . 5DISASSEMBLY PROCEDURES . 5SELF DIAGNOSIS FUNCTION . 617FACTORY PRESET . 18ICONTENTSAMP ADJUSTMENT . 19IC DATA .2028DISPLAY DATA . 29BLOCK DIAGRAM. 3031PRINTED CIRCUIT BOARD . 3247SCHEMATIC DIAGRAM . 4853PARTS LIST . 5469REMOTE CONTROL TRANSMITTER . 70RadioFans.CN 收音机爱 好者资料库DSP-A5E-30/J-28E-31/J-29I BLOCK DIAGRAM101121206-CHSELECTORIC102262527654897222324OPERATIONKEYSW503-510439328196421122016639946RESETQ503,D502POWER DOWN DETECTQ504,D510,511BACK-UP(MEMORY)IC502D512REGULATORQ802, D8031264 6543226146U501/STSCKSDTMETERTCEF1 F2/RESPRIPRDLIMDTVUP VDNDSPCONTROLCEAC2CEAC1CLKACTXACRXACCECOD/ICD/CSDINTDSCKDSIDSOD/FMTPDT+5BU+5MPRYVPSTANDBY/ONSW502PSW ROT-A ROT-B KEY1 KEY2 G1-16P1-22D508+BB+25-25F802J802J802F801Q801 RY801S12REMOTESENSORFL DISPLAYV501D509,1819,98 9613154653RCERDTDEST/RDORCK14314152215357IC402AINPUT SELECTORCONTROL31IC402B31IC403A57IC403B57IC114A31IC114B57IC112A31IC112BMUTE DRIVEQ501,502LIMITTERIC113IC111LEVEL CONTROL LEVEL CONTROL6 GANG MOTOR VOLUMEVR401TONECONTROLIC581BASSVR581TREBLEVR582 VR583-10dBMAINLEVELQ107BALANCEQ119Q120Q110Q114Q112Q102MUTINGQ521Q526,Q529Q527A/CQ522Q530,Q533Q531A/CQ523Q534,Q537Q531A/CQ525Q542,Q545Q543A/CQ540Q536Q532D521D532-B-BQ557Q554Q544D527D501D506Q510Q519Q520MAINPOWER AMPCENTERPOWER AMPREARPOWER AMPRY501RY502RY503LRMAINCENTERLRSUBWOOFERREAR(SURROUND)OUTPUTOUTPUTSPEAKERS+L+R+REAR(SURROUND)CENTERABLABRMAINPHONES+12-12Q555ERYQ553SRYQ549,550RY503REAR SPEAKERRY502CENTER SPEAKERRY501MAIN SPEAKERSPEAKER RELAY DRIVEPSPROTECTIONDETECTOVERCURRENTPROTECTIONDETECTDCPROTECTIONDETECTSIGNALLEVELDETECTCENTERMAINREARVCRPHONOCDLRLRLRLRLRLRCBL/SATD-TVINOUTVCRIN(PLAY)LRLRTAPE/MDLRMAINCENTERLRSUBWOOFERSURROUNDEXTERNALDECODERINPUTAUDIO SIGNAL DIGITAL SIGNALLRVIDEOAUXINPUT SELECTORIC10113222302829TAPE MONITORIC102VIDEO AUXDVD/LDCBL/SATIND-TVOUTVCRVIDEO SELECTOR &AMPIC301MONITOR OUTMONITOR OUTS-VIDEO SELECTOR & AMPIC351,352INDVD/LDCBL/SATD-TVOUTVIDEOAUXVCRT801D751D451D452MAIN,CENTER,REARAMPRDSCONTROL(NOT USED)INPUT SELECTORCONTROLLIMITTERCONTROLDRIVE-10dBCONT-ROLDRIVEOUTPUT PORTEXPANSIONIC107TUNERCONTROL(NOT USED)MIC404Q552D513INPEDANCESELECTORSW761POWERTRANS-FORMERD804-807Q506Q511Q512Q507Q513Q514Q508Q515Q516Q524Q538,Q541Q539A/CQ509Q517Q518MAINPOWER AMPCENTERPOWER AMPREARPOWER AMPSPEAKER RELAYSPEAKERSELECTOR SWITCHSUBWOOFERCENTER5724IC110A3123IC110B3125IC13A5726IC13BLFECRLSW1SW2SW3SW4SW5RR5727IC11A3128IC11B67IC108AFLFR67IC109AINHIBITIC10111 1218 175719IC10A3117IC10BL+618L-R+216R-1D/ACONVERTERIC76IC106B4IC106A86474524742IC103302729IC103IC103IC10331IC108BQ106IC8,9OPTICALOPTICALD-TVDVD/LD811IC371COAXIAL DIGITALFORMATINTERFACERECEIVERIC3 STATICRAMIC5395910XL1(24.576MHz)84COAXIAL/OPTICALSELECTORIC373DIGITALINPUTSELECTORIC395MICROCOMPUTERIC501COAXIAL SIGNALDETECTORIC3718913IC2DIBDIA29323120754357IC401B31IC401A6249 ,888966,44DO41 42A BSW501INPUTSELECTERVR401SDTSCKCETCMOTORDRIVE3695909240351091112232724262538453917783785H.P.F3458IC103IC103SW711+B,-B,+25,-25,+12,-12,+5,-5D914748PRV100D503Q721,722+5+5DD453IC721,722IC723,725D759, 764, 762, 763BL,-BL573157IC582A31IC582B31IC109BH.P.F26272623IC103IC103VIDEO SIGNALS VIDEO SIGNAL13OUT(REC)4(R,T models)(J,B,Gmodels) J807XL501(10MHz)XOUT REMXINCKBQ124,125Q121AC OUTLETSAC OUTLETSAC OUTLETG modelB modelJ,R,T modelsQ548Q546,547SCKCELC2915/TMUTECETC30SDT/CONT1/CONT2/-10dB/ICAC234567810DTB211INPUT SELECTORCONTROLINPUT SELECTORCONTROL DIR5 DACD/ACONVERTERIC6(2/2) CODECDACA/DCONVERTERIC6(1/2) CODECADCSCKDSIDINTDSOD/CSD/ICDCLKACTXACCECODCEAC2CLKACRXACTXACCEAC1/ICACCLKACTXACCECOD 1M SRAM AC3D2avDSP+ DIGITAL/PRO-LOGIC/DTSDECODERIC4YSS918D-FOPTICALCBL/SAT811IC372COAXIALCOAXIAL/OPTICALSELECTORIC374COAXIAL SIGNALDETECTORIC372BL,-BL3332182LRTUNER2137DVD/LDLR5IC104A/B See page E-49/J-47 SCHEMATIC DIAGRAM INPUT (2/2) See page E-53/J-51 SCHEMATIC DIAGRAM MAIN (2/2),POWER See page E-51/J-49 SCHEMATIC DIAGRAM DSP See page E-53/J-51 SCHEMATIC DIAGRAM MAIN (2/2), POWER See page E-50/J-48 SCHEMATIC DIAGRAM OPERATION See page E-52/J-50 SCHEMATIC DIAGRAM MAIN (1/2) See page E-49/J-47 SCHEMATIC DIAGRAM INPUT (2/2) See page E-48/J-46 SCHEMATIC DIAGRAM INPUT (1/2) See page E-50/J-48 SCHEMATIC DIAGRAM OPERATION See page E-52/J-50 SCHEMATIC DIAGRAMMAIN (1/2)RadioFans.CN 收音机爱 好者资料库1DSP-A5I TO SERVICE PERSONNEL1. Critical Components informationComponents having special characteristics are marked ! and must bereplaced with parts having specifications equal to those 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 current 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 chemicals 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 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 R and T modelsM B and G modelsWALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLEDVD/LDDSPINPUTMOVIETHTR 1MONO MOVIETV SPORTSDISCOROCKHALLEXT.DEC.INDEXEFFECT /DTSSUR.MOVIETHTR 22TUNER3TAPE/MD1CD5D-TV6VCR4DVD/LD8CBL/SAT9V-AUX7PHONOENTER10+-+-0A/B/C/D/EPOWERSELECTAVDIR ADIR BDISC SKIPPRESETCHCHA/BDISPLAYVCR RECTESTMENUTITLETVPOWERTVSLEEPVOLUMETV VOLMUTEINPUTSTANDBYPOWERISET MENUTIME/LEVELRAV210V429760 US-CODESETDVD/LDDSPINPUTMOVIETHTR 1MONO MOVIETV SPORTSDISCOROCKHALLEXT.DEC.INDEXEFFECT /DTSSUR.MOVIETHTR 22TUNER3TAPE/MD1CD5D-TV6VCR4DVD/LD8CBL/SAT9V-AUX7PHONOENTER10+-+-0A/B/C/D/EPOWERSELECTAVDIR ADIR BDISC SKIPPRESETCHCHA/BDISPLAYVCR RECTESTMENUTITLETVPOWERTVSLEEPVOLUMETV VOLMUTEINPUTSTANDBYPOWERISET MENUTIME/LEVELRAV211V429770 EU-CODESET2DSP-A5M T modelM B modelM G modelM R modelI REAR PANELS3DSP-A5I SPECIFICATIONSIAUDIO SECTIONMinimum RMS Output Power Per Channel(Power Amp. Section)MAIN 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, 880WMaximum Power (EIAJ)R, T models onlyMAIN L/R, REAR L/R1kHz, 10% THD, 8105W+105WCENTER, 1kHz, 10% THD, 8105WDynamic Power Per Channel (IHF)MAIN L/R8/6/4/2 90W+90W/110W+110W/135W+135W/160W+160WDIN Standard Output Power Per ChannelG model onlyMAIN L/R, REAR L/R1kHz, 0.7% THD, 4110W+110WCENTER, 1kHz, 0.7% THD, 4110WIEC PowerG model onlyMAIN L/R, 1kHz, 0.06% THD, 875W+75WDamping Factor (SPEAKER A)MAIN L/R, 20Hz to 20kHz, 880Input Sensitivity/Input ImpedancePHONO (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/1.2kPRE OUT2.1V/1.2KSUB WOOFER (MAIN SP : SMALL)4V/1.2KHeadphone Jack Rated Output/ImpedanceCD etc., Input=1kHz, 150mV, RL=80.34V/560Frequency Response(10Hz to 100kHz)CD etc., MAIN0/-3dBRIAA 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)0.06%Signal-to-Noise Ratio(IHF-A Network)PHONO (MM), Input shorted, REC OUTR, T models86dBB, G models81dBCD etc,(EFFECT OFF), Input shorted, SP OUT99dBResidual 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, 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.IVIDEO SECTIONVideo Signal TypeR modelNTSC/PALT, B, G modelsPALVideo Signal Level1Vp-p/75S-Video Signal LevelY:1Vp-p/75,C:0.286Vp-p/75Maximum Input Level1.5Vp-pSignal-to-Noise Ratio50dBMonitor Output Frequency Response(3dB) 5Hz10MHzIGENERALPower SupplyR modelAC110/120/220/240V, 50/60HzT modelAC220V, 50HzB, G modelsAC230V, 50HzPower ConsumptionR, T models310WB, G models300WStandby Power ConsumptionB, G models0.89WMaximum Power ConsumptionR model only5CH Simultaneous output, 10% THD510WAC OutletR, T models, Switched x 3100W max(Total)B model, Switched x 1100W maxG model, Switched x 2100W max(Total)Dimensions(W x H x D)435 x 151 x 390.5mm(17-1/8 x 5-15/16 x 15-3/8)Weight11.2kg(24Ibs. 11 oz)AccessoriesRemote Control Transmitter x 1Battery (size AAA, R03) x 4* Specifications subject to change without notice.R . General modelB . British modelT. China modelG . European modelR,T models GD (Gold model)B model BL (Black model)G model BL (Black model) and TI (Titan model)4DSP-A5G 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 switchsetting while the power to this unit is on, otherwisethis unit may be damaged.IMPEDANCE SELECTORManufactured 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.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 Systems, Inc. Copyright 1996 Digital Theater Systems, inc. All rights reserved.5DSP-A5I 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.Fig.11 POWER TRANSFORMER2 P.C.B. POWER (2)3 P.C.B. POWER (7)(B,G models only)4 P.C.B. MAIN (3)5 P.C.B. POWER (6)(R,T models only)6 P.C.B. MAIN (4)7 P.C.B. POWER (4)(R,T models only)8 P.C.B. MAIN (2)9 P.C.B. MAIN (1)0 P.C.B. POWER (3)A P.C.B. INPUT (1)B P.C.B. INPUT (4)C P.C.B. INPUT (3)D P.C.B. INPUT (2)E P.C.B. INPUT (5)F P.C.B. POWER (5)G P.C.B. MAIN (5)H P.C.B. OPERATION (3)I P.C.B. OPERATION (1)J P.C.B. MAIN (6)K P.C.B. POWER (1)L P.C.B. OPERATION (2)M P.C.B. DSPI INTERNAL VIEWFront PanelTop Cover1111111111222223333333333Knobs6DSP-A5I SELF DIAGNOSIS FUNCTION1. PURPOSE AND OPERATIONThe DSP-A5 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 have sub-menu items as 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. CENTER : 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, KEY23. 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. VERSION and CHECK SUM2. MODEL TYPE and DESTINATION3. EXITMAIN MENUANALOG THROUGHDSP THROUGHAC3/DTS THROUGHPRO LOGICSPEAKERS SETDISPLAY CHECK(EFFECT OFF)MANUAL TESTFACTORY PRESETAD DATA CHECKSTATUS INFORMATION FROM DSPUNIT INFORMATION/EXITREMOTE CONTROL CODE (KEY)7A88 (1 DSP mode)111. CHECK SUM MODIFICATION DATA EEPROM DATA2. WRITING CONFIRMATION3. START WRITINGEEPROM WRITINGFUNCTION 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) 7A-12 (ENTER DSP mode)7A-56 (10 DSP mode) 4. DC PROTECTION 7DSP-A51.2.3.4.5.6.7.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 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. 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 PROGRAM and EFFECT 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. Settings for start-up of diagnostic programThe settings used when starting the diagnostic program are as follows.EFFECT keySTANDBY/ON keyPROGRAM