Yamaha-GX700-cs-sch 维修电路原理图.pdf
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1、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 i
2、s 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+
3、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 DriverVCCMUTEVIN1VG1VO1VO2GNDGND1234
4、5678GNDVO3VO4VG2VIN2REG OUTREG IN9101112131415VCCVREFVIN4VG4VO8VO7GNDGND3029282726252423GNDVO6VO5VG3VIN3CDRES22212019181716RESET+REGULATORLEVEL SHIFT3LEVEL SHIFT2BTL AMP3BTL AMP2LEVEL SHIFT411K11KLEVEL SHIFT1BTL AMP4VCC11K11KBTL AMP1IC3, 4 : TA8409SFull Bridge Motor Driver92673851STAND-BYCIRCUITVREF
5、CIRCUITTHERMAL SHUTDOWNCIRCUITVCCVSVREFOUT 1OUT 2IN 1IN 2GNDIC7, 9 : TC74HC125AFQuad 3 State Bus Buffers1A1Y1CVcc4C1234112C4A4Y1213142A2Y3C3A567GND3Y8910IC13 : TC74HC04AFHex Inverters1A1Y2YVDD6A1234112A6Y5A1213143A3Y5Y4A567VSS4Y8910IC8 : TC74VHC14FHex Schmit Trigger InvertersVDD14I613O612I511O510I49
6、O48I11O12I23O24I35O36VSS70V0VCD HEAD AMPSPC & DACACTMOTORDRIVEMOTOR DRIVECD CPULPFMUTINGREGULATORREGULATORCD(Lch)2.42.4001.51.22.42.52.52.42.42.42.42.42.42.42.42.40.13.84.904.92.42.92.53.61.63.83.23.50.63.50003.84.41.900.20.60.26.36.22.42.42.43.00002.82.72.42.46.32.52.42.42.72.70003.12.42.42.40.82.5
7、6.20006.20.911.101.14.8004.81.1011.11.22.7006.2004.702.51.22.52.24.9002.42.34.904.94.72.402.44.902.42.44.90.601.20.202.42.52.52.62.32.42.42.42.42.42.32.42.44.34.904.700004.72.404.92.42.44.85.58.54.97.97.901.21.81.21.20002.7000006.86.86.86.311.14.804.74.7004.84.84.804.84.74.7000004.8004.904.64.3004.8
8、004.70000004.8000000004.800000000004.34.72.12.30000000004.80000000000000004.74.74.74.84.8000000004.8004.84.84.8-11.9-11.90000-11.9000-12.012.4000qw83126574125436141213111094652189737814101166MAIN(1)P73A-2INPUT(1)P68A-9EFFECT(1)P72I-5RadioFans.CN 收音机爱 好者资料库ABCDEFGH123456IJKLMNO78910GX-700/GX-700VCDIS
9、CHEMATIC 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.Poin
10、t 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.AGC
11、AGC10ARF17RF DETENV DETECT11C.ENV12C.EA19ENVBDOOFTR13C.SBDO14BDO15C.SBRT16OFTR18GND5VCC+23TEBPF+22VDET+20VREF1PD4LDP3LDON2LD21LD OFF+OUT1IN1VCC+VCCOUT212345+IN1IN2+IN2 +678IC10 : PC4570G2Dual OP-AmpIC1 : LA6541D4 Channel BTL DriverVCCMUTEVIN1VG1VO1VO2GNDGND12345678GNDVO3VO4VG2VIN2REG OUTREG IN910111
12、2131415VCCVREFVIN4VG4VO8VO7GNDGND3029282726252423GNDVO6VO5VG3VIN3CDRES22212019181716RESET+REGULATORLEVEL SHIFT3LEVEL SHIFT2BTL AMP3BTL AMP2LEVEL SHIFT411K11KLEVEL SHIFT1BTL AMP4VCC11K11KBTL AMP1IC3, 4 : TA8409SFull Bridge Motor Driver92673851STAND-BYCIRCUITVREFCIRCUITTHERMAL SHUTDOWNCIRCUITVCCVSVREF
13、OUT 1OUT 2IN 1IN 2GNDIC7, 9 : TC74HC125AFQuad 3 State Bus Buffers1A1Y1CVcc4C1234112C4A4Y1213142A2Y3C3A567GND3Y8910IC13 : TC74HC04AFHex Inverters1A1Y2YVDD6A1234112A6Y5A1213143A3Y5Y4A567VSS4Y8910IC8 : TC74VHC14FHex Schmit Trigger InvertersVDD14I613O612I511O510I49O48I11O12I23O24I35O36VSS70V0VNO.TERMINA
14、LI/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 GROUND11DGNDDIG
15、ITAL 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 SERIA
16、L 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
17、 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.
18、22.42.52.52.42.42.42.42.42.42.42.42.40.13.84.904.92.42.92.53.61.63.83.23.50.63.50003.84.41.900.20.60.26.36.22.42.42.43.00002.82.72.42.46.32.52.42.42.72.70003.12.42.42.40.82.56.20006.20.911.101.14.8004.81.1011.11.22.7006.2004.702.51.22.52.24.9002.42.34.904.94.72.402.44.902.52.42.54.90.601.20.202.42.5
19、2.52.62.32.42.42.42.42.42.32.42.44.34.904.800004.8004.92.42.42.44.85.58.54.97.97.901.21.81.21.20002.7000006.86.86.86.311.14.804.84.8004.84.84.804.84.84.80004.94.80004.64.3004.8004.80000004.8000000004.800000000004.304.84.72.02.30000000004.8000000000000004.74.84.84.84.8000000004.84.84.84.8-11.9-11.900
20、00-11.9000-12.012.40004.8002.42.44.94.94.9004.80000004.84.804.84.84.8qw83126574125436147375634142154621141213111094652189738141011VCD (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)
21、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
22、 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 + LATCHESRSBC2RHP1RHP2RRECOUT10
23、RRECIN10RRECOUT1RCOM1RHRF2C1RF2C2RF2C3RF1C1RF1C2RF1C3RTINRSVROUT16151413121110987654321LSBC2LHP1LHP2LRECOUT10LRECIN10LRECOUT1LCOM1LHLF2C1LF2C2LF2C3LF1C1LF1C2LF1C3LTINLSVROUT32313029282726252423222120191817RSBC1RCOM2R1dBOUTR10dBINR10dBOUTRVSSCEDICLDVSSLVSSL10dBOUTL10dBINL1dBOUTLCOM2LSBC14950515253545
24、5565758596061626364VCOFFVCONDIRECT PASSDIRECT PASSVCOFFVCONRSVRINRVCOUTVDDRVref1RVref2RINVC4VC3VC2VC1LINLVref2LVref1MICINLVCOUTLSVRIN33343536373839404142434445464748IC5 : PD4066BGQuad Analog Switch/MultiplexerSWAIN/OUT1OUT/IN2OUT/IN3IN/OUT4CONT B5CONT C6VSS714VDD13CONT A12CONT D11IN/OUT10OUT/IN9OUT/
25、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 L
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