Yamaha-GX700-cs-sch 维修电路原理图.pdf

ABCDEFGH123456IJKLMN78910GX-700/GX-700VCDISCHEMATIC DIAGRAM (GX-700 CD)* All voltage are measured with a 10M/V DC electric volt meter.* Components having special characteristics are marked Z?andmust be replaced with parts having specifications equal to thoseoriginally installed.* Schematic diagram is subject to change without notice.Point q (Pin59 of IC5)V : 5V/divH : 50 nsec/divDC range1 : 1 probePoint w (Pin39 of IC11)V : 2V/divH : 50 nsec/divDC range1 : 1 probeIC2 : AN8803SBDigital Servo Head Amp36PDACEQ+35PDBD+31PDFR34PDF+32PDER33PDE+VCBA+VCBA29F.BAL7RF OUT6RF+27FEOUT28FE+VCBA+VCBA+30TBAL+24CROSS+25TEOUT26TE8RF INRFDETECT9C.AGCAGC10ARF17RF DETENV DETECT11C.ENV12C.EA19ENVBDOOFTR13C.SBDO14BDO15C.SBRT16OFTR18GND5VCC+23TEBPF+22VDET+20VREF1PD4LDP3LDON2LD21LD OFF+OUT1IN1VCC+VCCOUT212345+IN1IN2+IN2 +678IC10 : PC4570G2Dual OP-AmpIC1 : LA6541D4 Channel BTL DriverVCCMUTEVIN1VG1VO1VO2GNDGND12345678GNDVO3VO4VG2VIN2REG OUTREG IN9101112131415VCCVREFVIN4VG4VO8VO7GNDGND3029282726252423GNDVO6VO5VG3VIN3CDRES22212019181716RESET+REGULATORLEVEL SHIFT3LEVEL SHIFT2BTL AMP3BTL AMP2LEVEL SHIFT411K11KLEVEL SHIFT1BTL AMP4VCC11K11KBTL AMP1IC3, 4 : TA8409SFull Bridge Motor Driver92673851STAND-BYCIRCUITVREFCIRCUITTHERMAL SHUTDOWNCIRCUITVCCVSVREFOUT 1OUT 2IN 1IN 2GNDIC7, 9 : TC74HC125AFQuad 3 State Bus Buffers1A1Y1CVcc4C1234112C4A4Y1213142A2Y3C3A567GND3Y8910IC13 : TC74HC04AFHex Inverters1A1Y2YVDD6A1234112A6Y5A1213143A3Y5Y4A567VSS4Y8910IC8 : TC74VHC14FHex Schmit Trigger InvertersVDD14I613O612I511O510I49O48I11O12I23O24I35O36VSS70V0VCD HEAD AMPSPC & DACACTMOTORDRIVEMOTOR DRIVECD CPULPFMUTINGREGULATORREGULATORCD(Lch)2.42.4001.51.22.42.52.52.42.42.42.42.42.42.42.42.40.13.84.904.92.42.92.53.61.63.83.23.50.63.50003.84.41.900.20.60.26.36.22.42.42.43.00002.82.72.42.46.32.52.42.42.72.70003.12.42.42.40.82.56.20006.20.911.101.14.8004.81.1011.11.22.7006.2004.702.51.22.52.24.9002.42.34.904.94.72.402.44.902.42.44.90.601.20.202.42.52.52.62.32.42.42.42.42.42.32.42.44.34.904.700004.72.404.92.42.44.85.58.54.97.97.901.21.81.21.20002.7000006.86.86.86.311.14.804.74.7004.84.84.804.84.74.7000004.8004.904.64.3004.8004.70000004.8000000004.800000000004.34.72.12.30000000004.80000000000000004.74.74.74.84.8000000004.8004.84.84.8-11.9-11.90000-11.9000-12.012.4000qw83126574125436141213111094652189737814101166MAIN(1)P73A-2INPUT(1)P68A-9EFFECT(1)P72I-5RadioFans.CN 收音机爱 好者资料库ABCDEFGH123456IJKLMNO78910GX-700/GX-700VCDISCHEMATIC DIAGRAM (GX-700VCD VCD)* All voltage are measured with a 10M/V DC electric volt meter.* Components having special characteristics are marked Z?andmust be replaced with parts having specifications equal to thoseoriginally installed.* Schematic diagram is subject to change without notice.Point q (Pin59 of IC5)V : 5V/divH : 50 nsec/divDC range1 : 1 probePoint w (Pin39 of IC11)V : 2V/divH : 50 nsec/divDC range1 : 1 probeIC2 : AN8803SBDigital Servo Head Amp36PDACEQ+35PDBD+31PDFR34PDF+32PDER33PDE+VCBA+VCBA29F.BAL7RF OUT6RF+27FEOUT28FE+VCBA+VCBA+30TBAL+24CROSS+25TEOUT26TE8RF INRFDETECT9C.AGCAGC10ARF17RF DETENV DETECT11C.ENV12C.EA19ENVBDOOFTR13C.SBDO14BDO15C.SBRT16OFTR18GND5VCC+23TEBPF+22VDET+20VREF1PD4LDP3LDON2LD21LD OFF+OUT1IN1VCC+VCCOUT212345+IN1IN2+IN2 +678IC10 : PC4570G2Dual OP-AmpIC1 : LA6541D4 Channel BTL DriverVCCMUTEVIN1VG1VO1VO2GNDGND12345678GNDVO3VO4VG2VIN2REG OUTREG IN9101112131415VCCVREFVIN4VG4VO8VO7GNDGND3029282726252423GNDVO6VO5VG3VIN3CDRES22212019181716RESET+REGULATORLEVEL SHIFT3LEVEL SHIFT2BTL AMP3BTL AMP2LEVEL SHIFT411K11KLEVEL SHIFT1BTL AMP4VCC11K11KBTL AMP1IC3, 4 : TA8409SFull Bridge Motor Driver92673851STAND-BYCIRCUITVREFCIRCUITTHERMAL SHUTDOWNCIRCUITVCCVSVREFOUT 1OUT 2IN 1IN 2GNDIC7, 9 : TC74HC125AFQuad 3 State Bus Buffers1A1Y1CVcc4C1234112C4A4Y1213142A2Y3C3A567GND3Y8910IC13 : TC74HC04AFHex Inverters1A1Y2YVDD6A1234112A6Y5A1213143A3Y5Y4A567VSS4Y8910IC8 : TC74VHC14FHex Schmit Trigger InvertersVDD14I613O612I511O510I49O48I11O12I23O24I35O36VSS70V0VNO.TERMINALI/OFUNCTION1A+3.3V+3.3V POWER SUPPLY FOR ANALOG VIDEO2CVOUTOCOMPOSITE VIDEO OUT3COUTOC VIDEO OUTPUT (S)4YOUTOY VIDEO OUTPUT (S)5VGNDANALOG VIDEO GROUND6VGNDANALOG VIDEO GROUND7R+5VDIGITAL +5V POWER SUPPLY8D+3.3VDIGITAL +3.3V POWER SUPPLY9D+3.3VDIGITAL +3.3V POWER SUPPLY10DGNDDIGITAL GROUND11DGNDDIGITAL GROUND12XCKIAUDIO EXTERNAL FREQUENCY CLOCK13EMPHOAUDIO EMPHASIS OUTPUT14DILRCKOAUDIO LEFT RIGHT CLOCK15HRDYOHOST DATA READY16DISCKOAUDIO BIT CLOCK17DIDATAOAUDIO DATA SERIAL BUS18HINTOHOST INTERRUPT19SBCKOSUBCODE CLOCK FOR CD-G20VRSTIHARDWARE RESET (LOW ACTIVE)21HCKIHOST CLOCK22HDIOI/OHOST SERIAL DATA BUS23CDSCKICD BIT CLOCK24CDDATAICD DATA25CDLRCKICD LEFT RIGHT CLOCK26IPFLGICD DATA ERROR FLAG (C2P0)27HSELIHOST ADDRESS/DATA SELECT28SUBCISUBCODE DATA FOR CD-G29CLDCKISUBCODE FRAME SYNC FOR CD-G30BLKCKISUBCODE BLOCK SYNC FOR CD-GCONNECTION TERMINAL SPECIFICATIONNOTE: None of the components of the VCD module can be suppliedseparately. Only a VCD module unit (VZ150200) is available.VCD MODULEVZ1502002. SUBCODE INTERFACE3. AUDIO OUTPUT INTERFACE4. HOST INTERFACEHOST READ TIMINGHOST WRITE TIMINGCD HEAD AMPSPC & DACACTMOTORDRIVEMOTOR DRIVECD CPULPFMUTINGREGULATORREGULATORCD(Lch)2.42.4001.51.22.42.52.52.42.42.42.42.42.42.42.42.40.13.84.904.92.42.92.53.61.63.83.23.50.63.50003.84.41.900.20.60.26.36.22.42.42.43.00002.82.72.42.46.32.52.42.42.72.70003.12.42.42.40.82.56.20006.20.911.101.14.8004.81.1011.11.22.7006.2004.702.51.22.52.24.9002.42.34.904.94.72.402.44.902.52.42.54.90.601.20.202.42.52.52.62.32.42.42.42.42.42.32.42.44.34.904.800004.8004.92.42.42.44.85.58.54.97.97.901.21.81.21.20002.7000006.86.86.86.311.14.804.84.8004.84.84.804.84.84.80004.94.80004.64.3004.8004.80000004.8000000004.800000000004.304.84.72.02.30000000004.8000000000000004.74.84.84.84.8000000004.84.84.84.8-11.9-11.90000-11.9000-12.012.40004.8002.42.44.94.94.9004.80000004.84.804.84.84.8qw83126574125436147375634142154621141213111094652189738141011VCD (1)VCD (2)67MAIN(1)P73A-2INPUT(1)P69A-9EFFECT(1)P72I-5EFFECT(1)P72A-5RadioFans.CN 收音机爱 好者资料库ABCDEFGH123456IJKLMN78910GX-700/GX-700VCDISCHEMATIC DIAGRAM (GX-700 INPUT)The voltages are measured by LH tape at PLAY mode (no-signal condition)Only the voitages () are at REC mode.G DOLBY NR OFF* All voltage are measured with a 10M/V DC electric volt meter.* Components having special characteristics are marked Z?andmust be replaced with parts having specifications equal to thoseoriginally installed.* Schematic diagram is subject to change without notice.IC3, 4 : TC4052BFDual 4 Channel Analog Multiplexers/DemultiplexersINHIBIT00001B0011XA0101X0 x, 0y1x, 1y2x, 2y3x, 3yNONEIC7 : LC75393EElectronic Volume ControlCCB BUS INTERFACEDECODER + LATCHESRSBC2RHP1RHP2RRECOUT10RRECIN10RRECOUT1RCOM1RHRF2C1RF2C2RF2C3RF1C1RF1C2RF1C3RTINRSVROUT16151413121110987654321LSBC2LHP1LHP2LRECOUT10LRECIN10LRECOUT1LCOM1LHLF2C1LF2C2LF2C3LF1C1LF1C2LF1C3LTINLSVROUT32313029282726252423222120191817RSBC1RCOM2R1dBOUTR10dBINR10dBOUTRVSSCEDICLDVSSLVSSL10dBOUTL10dBINL1dBOUTLCOM2LSBC149505152535455565758596061626364VCOFFVCONDIRECT PASSDIRECT PASSVCOFFVCONRSVRINRVCOUTVDDRVref1RVref2RINVC4VC3VC2VC1LINLVref2LVref1MICINLVCOUTLSVRIN33343536373839404142434445464748IC5 : PD4066BGQuad Analog Switch/MultiplexerSWAIN/OUT1OUT/IN2OUT/IN3IN/OUT4CONT B5CONT C6VSS714VDD13CONT A12CONT D11IN/OUT10OUT/IN9OUT/IN8IN/OUTSWDSWBSWCSIG/ASIG/BSIG/DSIG/C16VDD6INHIBIT10A9B8VSS7VEE12X014X115X211X31Y05Y12Y24Y3LEVELCONVERTERBINARY TO 1-OF-4DECODER WITH INHIBITSWSWSWSWSWSWSWSW13X3YIC10 : BA15218NDual OP-AmpIN12+IN13VCC4+IN25IN26OUT27+VCC8OUT11+IC1 : LB1641Motor Driver23P15IN 11GND4VZ6IN 2OUT 18VCC 210OUT 29P2INPUT LOGICPRE DRIVER7VCC 1IC2 : PC1330HA2 ch Head Selector SwitchINVERTERCOMPARATOR1SWR 12GND3SWP 14CONT5GND6VCC9SWR 28GND7SWP 2105HzBPFVREFBIAS340HzBPF1kHzBPF3.4kHzBPFDIF10.5kHzBPFPEAKHOLDPEAKHOLDPEAKHOLDPEAKHOLDPEAKHOLDRESRESRESRESMPXDECRESREFFERENCE CURRENT678954321131211101415161718BIASCVREFCBREFN. C.N. C.DIF OUTC INA INVCCGNDA OUTTESTN. C.N. C.SELCBAA CCAIC26 : BA3835S5-Band BPF and Peak Hold for Spectrum AnalyzerIC9, 11, 21 : PC4570G2Dual OP-Amp+OUT1IN1VCC+VCCOUT212345+IN1IN2+IN2 +678IC6 : CXA1897QDolby B-Type Noise Reduction System with Recording/PlaybackEqualizer17222019REC EQCTLREC EQCTLGNDD PB IN1NRSWGNDAGC OUT1VCC10K40K10dBAMPIREFMUTE36D TC1DR OUT1REC IN1DECK ABA EQB EQREC OUT1REC OUT2SPEEDFP CALGP CALREC IN2DR OUT2VCCRFCAMS OUTAMS GAIN35343230292726251224D REC IN1D IREFGND31NRD L OUT2NRAMS18211516131445464847RECEQRECEQ11109876AGCIREFAGC IN1D PBIN2MODEAGC OUT2D TC2GNDIREFVGAGC TCD REC IN2REC MUTED L OUT2AGC IN210K40K10dBAMP54333214443GNDPB OUTB1PB OUTA1PB FB21PB FB11PB INB1PB INA1PB INA2PB INB2PB FB12PB FB22PB OUTA2PB OUTB2GNDGND413937GNDGND2338402842Point e (Pin37 of IC8)V : 2V/divH : 20 sec/divDC range1 : 1 probePoint r (Pin39 of IC8)V : 2V/divH : 50 nsec/divDC range1 : 1 probePoint t CH1 : Collector of Q19 CH2 : Anode of D11H : 0.5 sec/divDC range1 : 1 probeV : 2V/div (CH1)V : 2V/div (CH2)(This waveform is not available by pushing the power switch ON and OFF.)CH 1CH 2With the POWER ON,disconnect the A/C powercord. Reconnect the A/Cpower cord and the abovewaveforms will start.Disconnect thepower cord fromthe AC outlet.0V0V123456789101112131. R REC2. METAL3. F REC4. CASS IN5. CrO26. +SOL7. SENSOR OUT8. +5V SENSOR9. PLAY SW10. +MTR11. COM12. MTR SPEED B13. MTR SPEED AMAIN PCB+BAMABUCHIMTRMECHA CHASSISPH TYPE (JST)SOL123451. LOAD OUT (+)2. LOAD IN (+)3. LOAD OUT4. COM5. LOAD INLOADING PCBPH TYPE (JST)MTR+1. LchR / P HDPH CONNECTOR+LRE HD+2. Lch 3. Rch 4. Rch +5. E6. E+INPUT SELECTORBUFFERMOTOR DRIVEMECHANISMCONTROLRESETMAIN CPUSPECTRUMANALYZERREGULATORREGULATORPREAMPMUTINGREGULATORMUTINGBUFFERTONEAMPELECTRONICVOLUMECONTROLHEAD EQ AMPDOLBY B-TYPEPROCESSORREC/PBSWBIAS OSCTUNERCDTAPEPB0008.000000000000000.711.211.211.511.212.212.212.2TAPE SPEED ADJ.BIAS ADJ.(Lch)BIAS ADJ.(Lch)00000004.94.60000023.10000000000000000000002.47.44.04.01.2002.52.44.04.04.01.31.32.62.61.24.03.94.04.04.10.38.68.64.02.64.03.43.4PB LEVEL ADJ.(Lch)REC LEVEL ADJ.(Rch)REC LEVEL ADJ.(Lch)0.34.02.64.03.94.01.14.12.54.48.08.0PB LEVEL ADJ.(Rch)0.50.712.212.2000.50.71.0009.09.09.09.04.70000004.79.09.09.0-8.49.09.000000000009.00000000000000000000000-8.3-8.44.79.0-8.49.09.04.49.04.44.44.44.44.42.34.64.44.44.44.44.44.44.4004.44.34.24.34.24.44.44.44.34.44.34.24.44.24.24.44.44.44.44.24.44.44.44.44.412.3000000-11.94.94.94.84.84.84.74.54.64.74.74.74.74.74.74.74.64.64.74.74.14.14.71.84.84.84.84.84.81.64.62.14.95.14.64.74.74.54.74.74.72.14.74.74.44.84.85.55.54.74.64.9000000000000000000000000000002.10000004.14.62.91.21.81.72.31.92.31.74.64.85.20.90.80.31.71.82.91.22.44.72.41.42.42.4005.59.0-11.90.712.30.70.44.94.99.09.69.604.85.512.412.45.52.15.200000000000012.49.79.7013.06.16.1000000-11.9-11.9-11.912.30004.94.74.79.0-8.4004.70000000000000000tre(8.1)(4.6)(0.1)(0.2)(14.4)(3.4)(0)(0)(0)(0)(3.4)(4.9)(15.0)(5.5)(21.8)(15.0)(15.0)(0)(0)(14.4)(1.6)(4.6)(0)(0)(4.6)(0)(0.7)147(4.6)(0.6)(4.7)(0)(0)(4.8)(3.0)(2.0)(3.0)CASS INCASSCASSCASS68P72I-4SAMEPAGEM-8SAMEPAGEM-9SAMEPAGEN-8P74H-6P66L-2SAME PAGEK-6P70E-6P70H-5P73A-4P73H-7P73A-3SAME PAGEB-9P70 E-1P72I-6SAME PAGEA-7SAME PAGEA-5SAME PAGEA-6ABCDEFGH123456IJKLMNO78910GX-700/GX-700VCDISCHEMATIC DIAGRAM (GX-700VCD INPUT)The voltages are measured by LH tape at PLAY mode (no-signal condition)Only the voitages () are at REC mode.G DOLBY NR OFF* All voltage are measured with a 10M/V DC electric volt meter.* Components having special characteristics are marked Z?andmust be replaced with parts having specifications equal to thoseoriginally installed.* Schematic diagram is subject to change without notice.IC3, 4 : TC4052BFDual 4 Channel Analog Multiplexers/DemultiplexersINHIBIT00001B0011XA0101X0 x, 0y1x, 1y2x, 2y3x, 3yNONEIC7 : LC75393EElectronic Volume ControlCCB BUS INTERFACEDECODER + LATCHESRSBC2RHP1RHP2RRECOUT10RRECIN10RRECOUT1RCOM1RHRF2C1RF2C2RF2C3RF1C1RF1C2RF1C3RTINRSVROUT16151413121110987654321LSBC2LHP1LHP2LRECOUT10LRECIN10LRECOUT1LCOM1LHLF2C1LF2C2LF2C3LF1C1LF1C2LF1C3LTINLSVROUT32313029282726252423222120191817RSBC1RCOM2R1dBOUTR10dBINR10dBOUTRVSSCEDICLDVSSLVSSL10dBOUTL10dBINL1dBOUTLCOM2LSBC149505152535455565758596061626364VCOFFVCONDIRECT PASSDIRECT PASSVCOFFVCONRSVRINRVCOUTVDDRVref1RVref2RINVC4VC3VC2VC1LINLVref2LVref1MICINLVCOUTLSVRIN33343536373839404142434445464748IC5 : PD4066BGQuad Analog Switch/MultiplexerSWAIN/OUT1OUT/IN2OUT/IN3IN/OUT4CONT B5CONT C6VSS714VDD13CONT A12CONT D11IN/OUT10OUT/IN9OUT/IN8IN/OUTSWDSWBSWCSIG/ASIG/BSIG/DSIG/C16VDD6INHIBIT10A9B8VSS7VEE12X014X115X211X31Y05Y12Y24Y3LEVELCONVERTERBINARY TO 1-OF-4DECODER WITH INHIBITSWSWSWSWSWSWSWSW13X3YIC10 : BA15218NDual OP-AmpIN12+IN13VCC4+IN25IN26OUT27+VCC8OUT11+IC1 : LB1641Motor Driver23P15IN 11GND4VZ6IN 2OUT 18VCC 210OUT 29P2INPUT LOGICPRE DRIVER7VCC 1IC2 : PC1330HA2 ch Head Selector SwitchINVERTERCOMPARATOR1SWR 12GND3SWP 14CONT5GND6VCC9SWR 28GND7SWP 2105HzBPFVREFBIAS340HzBPF1kHzBPF3.4kHzBPFDIF10.5kHzBPFPEAKHOLDPEAKHOLDPEAKHOLDPEAKHOLDPEAKHOLDRESRESRESRESMPXDECRESREFFERENCE CURRENT678954321131211101415161718BIASCVREFCBREFN. C.N. C.DIF OUTC INA INVCCGNDA OUTTESTN. C.N. C.SELCBAA CCAIC26 : BA3835S5-Band BPF and Peak Hold for Spectrum AnalyzerIC9, 11, 21 : PC4570G2Dual OP-Amp+OUT1IN1VCC+VCCOUT212345+IN1IN2+IN2 +678IC6 : CXA1897QDolby B-Type Noise Reduction System with Recording/PlaybackEqualizer17222019REC EQCTLREC EQCTLGNDD PB IN1NRSWGNDAGC OUT1VCC10K40K10dBAMPIREFMUTE36D TC1DR OUT1REC IN1DECK ABA EQB EQREC OUT1REC OUT2SPEEDFP CALGP CALREC IN2DR OUT2VCCRFCAMS OUTAMS GAIN35343230292726251224D REC IN1D IREFGND31NRD L OUT2NRAMS18211516131445464847RECEQRECEQ11109876AGCIREFAGC IN1D PBIN2MODEAGC OUT2D TC2GNDIREFVGAGC TCD REC IN2REC MUTED L OUT2AGC IN210K40K10dBAMP54333214443GNDPB OUTB1PB OUTA1PB FB21PB FB11PB INB1PB INA1PB INA2PB INB2PB FB12PB FB22PB OUTA2PB OUTB2GNDGND413937GNDGND2338402842Point e (Pin37 of IC8)V : 2V/divH : 20 sec/divDC range1 : 1 probePoint r (Pin39 of IC8)V : 2V/divH : 50 nsec/divDC range1 : 1 probePoint t CH1 : Collector of Q19 CH2 : Anode of D11H : 0.5 sec/divDC range1 : 1 probeV : 2V/div (CH1)V : 2V/div (CH2)(This waveform is not available by pushing the power switch ON and OFF.)CH 1CH 2With the POWER ON,disconnect the A/C powercord. Reconnect the A/Cpower cord and the abovewaveforms will start.Disconnect thepower cord fromthe AC outlet.0V0V123456789101112131. R REC2. METAL3. F REC4. CASS IN5. CrO26. +SOL7. SENSOR OUT8. +5V SENSOR9. PLAY SW10. +MTR11. COM12. MTR SPEED B13. MTR SPEED AMAIN PCB+BAMABUCHIMTRMECHA CHASSISPH TYPE (JST)SOL123451. LOAD OUT (+)2. LOAD IN (+)3. LOAD OUT4. COM5. LOAD INLOADING PCBPH TYPE (JST)MTR+1. LchR / P HDPH CONNECTOR+LRE HD+2. Lch 3. Rch 4. Rch +5. E6. E+INPUT SELECTORBUFFERMOTOR DRIVEHEAD EQ AMPDOLBY B-TYPEPROCESSORMECHANISMCONTROLREC/PBSWRESETMAIN CPUSPECTRUMANALYZERREGULATORREGULATORPREAMPMUTINGREGULATORMUTINGBUFFERTONEAMPELECTRONICVOLUMECONTROLBIAS OSCTUNERCDTAPEPB0008.000000000000000.711.211.211.511.212.212.212.2TAPE SPEED ADJ.BIAS ADJ.(Lch)BIAS ADJ.(Lch)00000004.94.60000023.10000000000000000000002.47.44.04.01.2002.52.44.04.04.01.31.32.62.61.24.03.94.04.04.10.38.68.64.02.64.03.43.4PB LEVEL ADJ.(Lch)REC LEVEL ADJ.(Rch)REC LEVEL ADJ.(Lch)0.34.02.64.03.94.01.