NAD-T571-avr-sch 维修电路原理图.pdf

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1、NOTES) WarningNOTES) Parts that are shaded are criticalNOTES) With respect to risk of fire orNOTES) electricial shock.470F/2.3V01. 09. 21 R10581B3-173-18CIRCUIT DIAGRAM1. POWER(SMPS) CIRCUIT DIAGRAMNOTE : 1. Shaded( ) parts are critical for safety. Replace only with specified part number.2. Voltages

2、 are DC-measured with a digital voltmeterduring Play mode.Oscillation abnormalDigitron no Power3.3V line dead.No Power8V line dead5V_A/5V_D, No PowerNo PowerRadioFans.CN 收音机爱 好者资料库3-193-20556Spindle Servo LoopRF SIGNALFocus Servo LoopTracking Servo LoopSled Servo LoopWAVEFORM2. DVD DSP CIRCUIT DIAGR

3、AMDVD/CD pictureaudio abnormalMPEG InterfaceLine-comInterface Data-comInterface adressCD/DVD pictureaudio abnormalTracking/FocusServo failTrackingServo failSpindle MotorabnormalCD/DVD pictureaudio abnormalFocus ServofailTrackingServo failScratchedDisc abnormalSled Servo failDRAM ControlDisc DetectEr

4、rorSpindle Servo failRadioFans.CN 收音机爱 好者资料库3-213-223. DRIVE & RF CIRCUIT DIAGRAM416231WAVEFORMSpindle Servo LoopTurn Table LoopFocus Servo LoopTracking Servo LoopSled Servo LoopTurntablenot operateTray LoadingSpeed controlTurn tablespeed controlSpindle MotorunstableActuator spindlesled not operateD

5、VD lasernot operateCD lasernot operateServo failDVD Mode fail DVDLaser not operateTracking Servo failFocusServo fail-comInterface lineCD/DVD pictureabnormal4437526WAVEFORMOPTICAL/COAXITAL OUTY/Pb/Pr(Component)Y.c(S-VHS)Audio L/R OUTCVBS3-233-244. PANTERA CIRCUIT DIAGRAMNo Power onAudiuo DAC Interfac

6、eSystem not operateDSP interface lineSpindle MotorunstableSystem not working orDigitron not display.3-253-26 WAVEFORMSIC2A1 Pin 42, Focus ErrorIC2A1 Pin 36, PiIC2A1 Pin 41Tracking ErrorIC501 Pin 114Component YIC2A1 Pin 41VBR TRACKING ErrorIC2A1 Pin 57,RFIC201 Pin 88, SLED Drive(FMO)IC201 Pin 18, SLE

7、D FGIC2A1 Pin42, Focus Error(in Focus Search)IC201 Pin 83, Focus Drive(FDO)IC501 Pin 118, CompositeIC501 Pin 112, Chrominance(Super video out Mode)Tek Stop : 2.50MS/s4 AcqsM20.0s2 Apr 199914:47:27GlitchCh1Ch3500mVT T3IC501 Pin 114, Luminance(Super video out Mode)Tek Stop : 1 00kS/s3290 AcqsM 500sCH1

8、 280/mVEdge SlopeType SourceCh1CouplingDCLevel280mVMode&Holdoff3Ch31.00V T T SlopeTIC501 Pin 99, PANTER MAINIC501 Pin 112Component PbIC501 Pin 110Component PrTURN(+)(-) from Motor DriveReverse turnSensor 1 (disc position) Sensor 2 (disc ready) TURN(+)(-) Signal from -comTE/TZC After trackingservo ON

9、 (Play mode)TURN(+)(-) from Motor DriveForward turnTE/TZC Before trackingservo ON TZC/MIRR (Search mode)FG Signal from M/D(Play mode)TE/SLD(+) Search mode(outter & inner)Tray open Tray closed3-273-285. MEMORY CIRCUIT DIAGRAMProgram download failDigitron abnormalNot usedNot power onNot memoriedsetup

10、MenuTurntable not operating“No Disc” displayTray not open/closeTray not closedPick-up not initialoperatingDisc Detec ErrorDisc numberdetect errorDigitron all not display andsystem not operateDigitron all not displaySystem not workingDigitron all not displaySystem not working3-293-306. TIMER & KEY CI

11、RCUIT DIAGRAMSystem notoperateRemoconnot operatePower notcontrolDigitronabnormalDigitronabnormal3-313-327. A/V CIRCUIT DIAGRAMLRQ401 is defective 2CH.Audio out bad.IC401 is defective.2CH Audio out bad.IC401 is defective.2CH Audio out bad.IC403, Q404 are defective.Digital data out bad.3-333-348. A/V

12、JACK CIRCUIT DIAGRAMComponent, S-Video outcan,t be changed.3-353-36LEVEL(V)MODEPIN NO.12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152533.181.31.42.21.501.51.41.63.10.70.150.15001.71.401.51.601.603.11.71.43.11.50.1500.71.52.223.12.92.22.90001.63.11.61.5

13、01.401.51.71.23.1LEVEL(V)MODEPIN NO.545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081.61.41.501.61.41.51.43.111.50.0050.50.0031.5803.11.21.21.21.23.11.652.21.51.53.13.10.0013.13.703.13.12.10.0043.10002.13.100002.12.1LEVEL(V)MODEP

14、IN NO.10911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216300.80.91.33.10.7801.262.380.081.2203.13.13.13.102.23.13.13.13.13.13.13.13.13.13.103.13.13.13.13.13.13.13.13.13.13.12.21.53.10LEVE

15、L(V)MODEPIN NO.1641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172183.13.13.13.13.13.13.103.13.13.11.53.103.13.13.13.13.180.08632.42.3003.100.0172.23.13.103.181.33.13.13.102.33.10.0013.13.

16、13.11.63.13.180.0182.23.192.691.52.92.590LEVEL(V)MODEPIN NO.2192202212222232242252262272282292302312322332342352362372382392402.292.082.292.292.493.12.392.451.501.5201.611.63.11.61.61.501.61.41.5LEVEL(V)MODEPIN NO.12345678910111213141516171819202122232425262728293031323334353637383940414243444546474

17、849505152534.33.103.223.10.013.13.23.23.23.203.13.13.100030.6253.20.7053.23.103.13.12.393.21.491.53.091.6903.13.12.53.13.13.23.13.1LEVEL(V)MODEPIN NO.545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991003.13.13.13.13.13.13.10.503.13.13.13.13.11.6003.103.103.

18、203.10.3002.503.193.194.43.194.404.4000003.173.173.10P A N T E R AM E M O R YI C 3 0 1I C 5 0 1EEPLAYMODEPIN NO.D S PIC201 SP330112345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152532.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00

19、 2.00 0.00 0.00 0.00 0.00 0.00 3.10 0.00 0.00 0.00 0.00 0.00 2.10 0.00 2.10 3.10 3.10 3.10 3.10 2.10 1.10 0.00 0.00 0.00 3.10 0.00 3.10 0.00 0.00 3.10 0.00 0.00 0.00 0.00 0.00 0.00 3.10 0.00 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 0.00 1.50 1.50 1.50 1.50 3.00

20、 1.50 1.50 1.50 1.50 1.50 1.50 0.00 2.00 3.00 1.50 2.50 2.50 1.30 1.80 0.00 0.00 0.00 3.00 0.00 3.00 0.00 0.00 3.00 0.00 0.00 0.00 3.00 0.00 0.00 1.80 0.00 EEPLAYMODEPIN NO.545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071083.10 3.1

21、0 0.00 0.00 5.00 0.00 0.00 5.00 0.00 2.10 0.00 3.10 0.00 3.10 0.00 0.00 0.00 3.10 0.00 0.00 3.10 0.00 0.00 0.00 0.00 3.10 5.00 0.00 5.00 2.10 2.10 3.10 1.40 0.00 2.10 2.10 0.00 1.50 3.10 1.60 1.10 2.00 1.55 0.00 1.55 1.56 3.10 1.55 1.55 1.62 1.55 1.50 0.00 0.00 0.00 3.00 3.00 0.00 3.13 4.98 0.00 0.0

22、0 4.98 0.00 2.10 0.00 3.00 0.00 3.12 0.00 0.20 0.00 3.10 0.20 0.00 3.10 0.00 0.00 0.00 2.30 3.10 5.00 0.00 5.00 2.00 2.10 3.10 1.40 0.00 2.00 2.00 0.00 1.55 3.12 1.55 1.11 2.00 1.55 0.00 1.55 2.15 3.10 1.58 1.55 1.64 1.55 1.50 0.00 0.00 0.00 EEPLAYMODEPIN NO.10911011111211311411511611711811912012112

23、21231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621630.00 0.00 0.00 0.00 3.40 5.00 1.50 1.50 3.10 0.00 0.00 3.50 3.25 3.45 3.50 3.50 3.50 0.00 3.60 0.00 3.60 0.00 0.00 0.00 3.10 0.00 0.00 3.10 0.00 0.00 3.10 3.00 0.00 3.00 3.10 3

24、.10 3.10 3.50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.55 3.10 1.50 0.00 0.00 2.60 3.10 2.00 2.00 0.00 0.00 0.00 0.00 4.70 5.00 1.50 1.53 3.10 0.00 0.00 4.20 4.20 4.30 4.30 4.30 4.50 0.00 2.60 0.00 2.60 0.20 0.00 3.10 3.10 0.00 0.00 2.20 0.00 0.00 3.10 3.10 0.00 3.00 3.10 3.10 0.90 4.50 0.00 0.00 0

25、.00 0.00 0.00 0.00 0.00 0.00 1.55 3.10 1.50 0.00 0.00 2.60 3.10 2.00 2.00 CIRCUIT VOLTAGE CHART3-373-38EEPLAYMODEPIN NO.164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208123456781.40 3.20 1.60 0.00 0.00 0.00 5.00 0.

26、00 3.10 3.10 3.10 3.10 2.53 4.24 5.00 2.70 3.26 3.10 2.40 3.66 2.40 0.00 2.26 3.10 2.20 1.75 2.20 1.80 2.20 1.25 1.00 5.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3.10 1.50 3.10 3.10 3.44 3.12 2.50 2.51 3.50 3.46 3.47 3.47 1.40 0.00 1.75 0.00 3.10 3.10 2.50 2.50 0.00 3.10 3.10 3.10 1.30 4.97 5.

27、00 0.20 2.30 2.50 2.50 2.80 2.50 0.00 2.00 3.10 2.40 1.90 1.80 1.80 2.20 1.30 1.10 5.00 2.25 1.60 1.50 1.50 1.50 1.50 1.50 1.50 1.50 2.60 1.50 3.10 3.10 3.38 3.40 2.50 2.53 3.44 3.44 3.45 3.44 EEPLAYMODEPIN NO.910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535

28、45556575859606162633.48 3.43 2.52 2.52 2.52 2.52 2.56 2.48 2.98 0.00 4.50 0.00 0.00 4.96 0.00 4.95 5.00 2.52 1.55 4.97 0.00 2.55 2.51 4.90 0.00 0.00 0.00 1.56 3.58 2.62 0.00 2.50 1.55 1.46 1.58 2.52 4.92 4.99 0.00 0.00 3.59 0.00 2.35 2.37 3.51 3.51 0.61 1.67 2.95 4.98 3.48 3.48 3.71 3.75 0.27 3.44 3

29、.41 2.70 2.70 2.60 2.60 2.70 2.50 3.30 0.00 4.58 0.00 0.20 3.85 0.00 4.92 0.00 2.50 1.55 4.93 0.40 2.63 2.56 4.65 0.20 2.60 2.50 2.15 0.00 3.20 2.60 2.60 1.60 1.65 1.64 2.50 4.97 5.00 0.00 0.00 0.00 0.00 0.00 2.30 3.47 3.46 0.00 2.42 2.88 4.93 3.40 3.40 3.70 3.70 0.36 EEPLAYMODEPIN NO.642.40 0.90 S

30、E R V OIC2A1 33P37213-393-40PRINTED CIRCUIT DIAGRAMS1. MAIN P.C.BOARDLOCATION GUIDE3-413-42LOCATION GUIDE2. AV JACK P.C.BOARD4. FRONT P.C.BOARDLOCATION GUIDE3. SMPS P.C.BOARDNOTES) WarningNOTES) Parts that are shaded are criticalNOTES) With respect to risk of fire orNOTES) electricial shock.470F/2.3

31、V01. 09. 21 R10581B3-173-18CIRCUIT DIAGRAM1. POWER(SMPS) CIRCUIT DIAGRAMNOTE : 1. Shaded( ) parts are critical for safety. Replace only with specified part number.2. Voltages are DC-measured with a digital voltmeterduring Play mode.Oscillation abnormalDigitron no Power3.3V line dead.No Power8V line

32、dead5V_A/5V_D, No PowerNo Power3-193-20556Spindle Servo LoopRF SIGNALFocus Servo LoopTracking Servo LoopSled Servo LoopWAVEFORM2. DVD DSP CIRCUIT DIAGRAMDVD/CD pictureaudio abnormalMPEG InterfaceLine-comInterface Data-comInterface adressCD/DVD pictureaudio abnormalTracking/FocusServo failTrackingSer

33、vo failSpindle MotorabnormalCD/DVD pictureaudio abnormalFocus ServofailTrackingServo failScratchedDisc abnormalSled Servo failDRAM ControlDisc DetectErrorSpindle Servo fail3-213-223. DRIVE & RF CIRCUIT DIAGRAM416231WAVEFORMSpindle Servo LoopTurn Table LoopFocus Servo LoopTracking Servo LoopSled Serv

34、o LoopTurntablenot operateTray LoadingSpeed controlTurn tablespeed controlSpindle MotorunstableActuator spindlesled not operateDVD lasernot operateCD lasernot operateServo failDVD Mode fail DVDLaser not operateTracking Servo failFocusServo fail-comInterface lineCD/DVD pictureabnormal4437526WAVEFORMO

35、PTICAL/COAXITAL OUTY/Pb/Pr(Component)Y.c(S-VHS)Audio L/R OUTCVBS3-233-244. PANTERA CIRCUIT DIAGRAMNo Power onAudiuo DAC InterfaceSystem not operateDSP interface lineSpindle MotorunstableSystem not working orDigitron not display.3-253-26 WAVEFORMSIC2A1 Pin 42, Focus ErrorIC2A1 Pin 36, PiIC2A1 Pin 41T

36、racking ErrorIC501 Pin 114Component YIC2A1 Pin 41VBR TRACKING ErrorIC2A1 Pin 57,RFIC201 Pin 88, SLED Drive(FMO)IC201 Pin 18, SLED FGIC2A1 Pin42, Focus Error(in Focus Search)IC201 Pin 83, Focus Drive(FDO)IC501 Pin 118, CompositeIC501 Pin 112, Chrominance(Super video out Mode)Tek Stop : 2.50MS/s4 Acqs

37、M20.0s2 Apr 199914:47:27GlitchCh1Ch3500mVT T3IC501 Pin 114, Luminance(Super video out Mode)Tek Stop : 1 00kS/s3290 AcqsM 500sCH1 280/mVEdge SlopeType SourceCh1CouplingDCLevel280mVMode&Holdoff3Ch31.00V T T SlopeTIC501 Pin 99, PANTER MAINIC501 Pin 112Component PbIC501 Pin 110Component PrTURN(+)(-) fro

38、m Motor DriveReverse turnSensor 1 (disc position) Sensor 2 (disc ready) TURN(+)(-) Signal from -comTE/TZC After trackingservo ON (Play mode)TURN(+)(-) from Motor DriveForward turnTE/TZC Before trackingservo ON TZC/MIRR (Search mode)FG Signal from M/D(Play mode)TE/SLD(+) Search mode(outter & inner)Tr

39、ay open Tray closed3-273-285. MEMORY CIRCUIT DIAGRAMProgram download failDigitron abnormalNot usedNot power onNot memoriedsetup MenuTurntable not operating“No Disc” displayTray not open/closeTray not closedPick-up not initialoperatingDisc Detec ErrorDisc numberdetect errorDigitron all not display an

40、dsystem not operateDigitron all not displaySystem not workingDigitron all not displaySystem not working3-293-306. TIMER & KEY CIRCUIT DIAGRAMSystem notoperateRemoconnot operatePower notcontrolDigitronabnormalDigitronabnormal3-313-327. A/V CIRCUIT DIAGRAMLRQ401 is defective 2CH.Audio out bad.IC401 is

41、 defective.2CH Audio out bad.IC401 is defective.2CH Audio out bad.IC403, Q404 are defective.Digital data out bad.3-333-348. A/V JACK CIRCUIT DIAGRAMComponent, S-Video outcan,t be changed.3-353-36LEVEL(V)MODEPIN NO.12345678910111213141516171819202122232425262728293031323334353637383940414243444546474

42、849505152533.181.31.42.21.501.51.41.63.10.70.150.15001.71.401.51.601.603.11.71.43.11.50.1500.71.52.223.12.92.22.90001.63.11.61.501.401.51.71.23.1LEVEL(V)MODEPIN NO.545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081.61.41.501.61.41

43、.51.43.111.50.0050.50.0031.5803.11.21.21.21.23.11.652.21.51.53.13.10.0013.13.703.13.12.10.0043.10002.13.100002.12.1LEVEL(V)MODEPIN NO.1091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621630

44、0.80.91.33.10.7801.262.380.081.2203.13.13.13.102.23.13.13.13.13.13.13.13.13.13.103.13.13.13.13.13.13.13.13.13.13.12.21.53.10LEVEL(V)MODEPIN NO.1641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152

45、162172183.13.13.13.13.13.13.103.13.13.11.53.103.13.13.13.13.180.08632.42.3003.100.0172.23.13.103.181.33.13.13.102.33.10.0013.13.13.11.63.13.180.0182.23.192.691.52.92.590LEVEL(V)MODEPIN NO.2192202212222232242252262272282292302312322332342352362372382392402.292.082.292.292.493.12.392.451.501.5201.611.

46、63.11.61.61.501.61.41.5LEVEL(V)MODEPIN NO.12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152534.33.103.223.10.013.13.23.23.23.203.13.13.100030.6253.20.7053.23.103.13.12.393.21.491.53.091.6903.13.12.53.13.13.23.13.1LEVEL(V)MODEPIN NO.5455565758596061626364

47、65666768697071727374757677787980818283848586878889909192939495969798991003.13.13.13.13.13.13.10.503.13.13.13.13.11.6003.103.103.203.10.3002.503.193.194.43.194.404.4000003.173.173.10P A N T E R AM E M O R YI C 3 0 1I C 5 0 1EEPLAYMODEPIN NO.D S PIC201 SP33011234567891011121314151617181920212223242526

48、2728293031323334353637383940414243444546474849505152532.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 0.00 0.00 0.00 0.00 0.00 3.10 0.00 0.00 0.00 0.00 0.00 2.10 0.00 2.10 3.10 3.10 3.10 3.10 2.10 1.10 0.00 0.00 0.00 3.10 0.00 3.10 0.00 0.00 3.10 0.00 0.00 0.00 0.00 0

49、.00 0.00 3.10 0.00 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30 0.00 1.50 1.50 1.50 1.50 3.00 1.50 1.50 1.50 1.50 1.50 1.50 0.00 2.00 3.00 1.50 2.50 2.50 1.30 1.80 0.00 0.00 0.00 3.00 0.00 3.00 0.00 0.00 3.00 0.00 0.00 0.00 3.00 0.00 0.00 1.80 0.00 EEPLAYMODEPIN NO

50、.545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071083.10 3.10 0.00 0.00 5.00 0.00 0.00 5.00 0.00 2.10 0.00 3.10 0.00 3.10 0.00 0.00 0.00 3.10 0.00 0.00 3.10 0.00 0.00 0.00 0.00 3.10 5.00 0.00 5.00 2.10 2.10 3.10 1.40 0.00 2.10 2.10