Yamaha-AS1000-int-sch(1) 维修电路原理图.pdf

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1、ABCDEFGHIJ1234567A-S100035I BLOCK DIAGRAMCOLD(-)+-+-A B PHONESSPEAKERS L/R CHR CHCD L/RTUNER L/RLINE1 L/RLINE2 PB L/RLINE2 REC OUT L/RPHONOL/RMCHEAD AMPEQ AMPATT.1ATT.2ATT.3TONE CONTROL DEVICESPRE OUTMAIN IN MM/MCRY_MMMCSPEAKER DRIVERLOW IMPEDANCE DRIVEHEADPHONE AMP.INDEPENDENTFLOATING POWER SUPPLYF

2、LOATING BALANCEDPOWER AMPLIFIERVOLUME & TONE CONTROLR CHR CHL CHL CHfor HOTPOWER TRANSFORMERINPUTSELECTORINPUT BUFFERINDEPENDENT REGULATED POWER SUPPLY(for AUDIO)For MC AMPFor EQ AMPFor LINE AMP1For LINE AMP2For VOLUME1For VOLUME2+20V/-20V+25V/-25V+25V/-25V+25V/-25V+12/-12V+12V/-12VSUB-TRANSFORMERBU

3、FFER AMP.VOLUMEINPUT SELBALANCEBASSSPEAKERTREBLEREMOTEPOWER SWITCHfor MICROPROCESSORFRONT PANELMICROPROCESSORAC INRY101RY102RY103IC410IC404RY_BYPRY402RY_DIRRY404RY501RY201/R111RY202/R112RY_SPARY_SPBJK501RY_HPHP ENDPRDPRI THM+B3/-B3D335D336D300D301D305D304PRVRY1T13460PRV1PRVPDET1716RY_PWR354536,37MVO

4、L+/-41-43A/B/C463925REM5I_BASI_TRE124I_LRBAL2I_SEL1I_VOLLED_PWR54RY_UNBALRY_BYP532,3PRD1,64THM62,63HP_PRD48PSVA147PSVA2RY_DIR32RY_BAL26RY_CD27RY_TU28RY_L129RY_L255RY_MMMC5615IC501IC502SP_AB9-113,4RY_PHONORY_SPBRY_SPARY_HPVR501PRV+33V-33VD306PRVIC52IC51+12VPSVA1PSVA2-12V+B4/-B4+B1/-B1+B2/-B2RY403IC41

5、3IC302IC414IC303IC405IC406IC411IC412IC301POL/PORRY_PHONORY_CDRY_TURY_L1RY_L2Q1001-1016Q1017-1038FLATSPCH A L/R CHSPCH B L/R CH(for POWER AMP / VOLTAGE AMP STAGE)HOT(+)HOT (POSITIVE PHASE) SIDE for COLDfor HOTfor COLDSPEAKER DRIVERCOLD (NEGATIVE PHASE) SIDE to POWER AMP.to SPEAKERS RELAYMAIN DIRECTBA

6、LANCE UNBALANCECONVERTERFRONT See page 59-61 SCHEMATIC DIAGRAM See page 55-57 SCHEMATIC DIAGRAMMAIN See page 58 SCHEMATIC DIAGRAMFUNCTION See page 55-57 SCHEMATIC DIAGRAM See page 59-61 SCHEMATIC DIAGRAMFUNCTION See page 55-57 SCHEMATIC DIAGRAMFUNCTIONFRONT See page 59-61 SCHEMATIC DIAGRAMFRONTLINE

7、AMP.RadioFans.CN 收音机爱 好者资料库CB301IC301IC301IC302IC304IC304IC302IC303IC303CB305W3004W3002W3005W3001W3007W3003W3006CB302A12345678910BCDEFGHIJKLMNA-S100055# All voltages are measured with a 10M/V DC electronic voltmeter.# Components having special characteristics are marked s and must be replaced with p

8、arts having specifications equal to those originally installed.# Schematic diagram is subject to change without notice.FUNCTION 1/3SCHEMATIC DIAGRAMS11.9-12.1-12.1-12.1-12.1-12.1-12.100-12.000-12.000000-12.4012.500000012.5-12.4000-12.400012.500-12.000-12.000-12.000-12.025.50.625.50.60-25.5-0.50-0.5-

9、25.5-12.16.50.500.56.006.06.00.5-25.3-24.7-24.2-24.2-0.7-0.7-0.2-25.3-24.324.325.424.31.00.425.424.31.000.41.01.00.206.06.500.55.905.95.90.5-25.3-24.7-2.42-24.2-0.8-0.8-0.2-25.3-24.324.425.424.41.00.425.025.51.000.21.01.0-0.805.900-11.911.9-11.812.6-12.40000CD LIC304: NJM2068MD-TE2Dual operational a

10、mplifierOUT1OUT2IN1+IN1+IN2-IN2VCC+VCC12348765+ + OUTPUTV+-INPUT+INPUTV-1,7842,63,5IC301-303: NJM2082M-TE1Dual J-FET input operational amplifierA OUTPUTA-INPUTA+INPUTV-B OUTPUTB-INPUTB+INPUTV+12348765+AB+ FUNCTION (1)LINE 2INPUTs310s310s311s310s310s311to FUNCTION (2)_CB403Page 56M5to FUNCTION (3)_W3

11、Page 57H8to FRONT (12)_CB59Page 61H2to FUNCTION (2)_CB402Page 56B7to FUNCTION (2)_CB408Page 56B7to FUNCTION (2)_CB401Page 56B5to FUNCTION (2)_CB407Page 56B6to FRONT (1)_CB519Page 59K7to FRONT (10)_W1003Page 60M7to FRONT (10)_W1002Page 60M5RadioFans.CN 收音机爱 好者资料库IC412IC411IC410CB405W4005CB406CB403CB4

12、04W4004IC414IC414CB401CB407CB408CB402IC404IC404IC405IC405IC406IC406A12345678910BCDEFGHIJKLMNA-S100056# All voltages are measured with a 10M/V DC electronic voltmeter.# Components having special characteristics are marked s and must be replaced with parts having specifications equal to those original

13、ly installed.# Schematic diagram is subject to change without notice.FUNCTION 2/3012.512.500000000-12.4000000000000000000000012.5-12.400000012.50012.4-12.312.512.30000-12.312.412.5000-12.1-12.10-12.2000000012.512.512.500000000-12.40000000000012.5000000000012.5-12.40000000000000012.512.500000000-12.4

14、000000000012.5012.500000000012.5-12.4000000000000024.625.625.624.6-25.2-24.625.224.625.60.41.1000001.01.11.01.00.50.4-0.7-0.7-0.1-0.125.124.61.01.0-0.1-0.7-25.7-12.111.7-11.60000-10.911.010.911.000-12.1-12.1-12.125.60.51.1-0.2-25.7-0.70.55.95.9-0.7-0.7-25.2-25.7-25.35.96.55.900.50.500.55.95.90.56.50

15、.505.95.95.96.524.625.725.824.7-25.4-24.825.324.725.70.41.1000001.01.11.01.10.50.4-0.7-0.7-0.7-0.124.71.01.0-0.1-0.7-25.812.612.600.60-12.5-12.5-0.512.612.600.60-12.5-12.5-0.525.625.600.60-25.7-25.7-0.525.70.51.1-0.2-25.8-0.70.55.95.9-0.7-0.7-25.3-25.8-25.35.96.55.900.50.500.55.95.90.56.50.505.95.95

16、.95.96.5OUT LIN LIC410-412: TC94A81UGElectronic volume controlZero crossingdetectioncircuitDecoder24-bit shift register3938373635343313231302928L-SW-IN4L-SW-OUTL-ZX-INL-ZX-AGNDL-MVR-INL-MVR-AGND1L-MVR-AGND2R-MVR-AGND2L-MVR-OUTR-MVR-OUTL-TVR-OUTR-TVR-OUTL-TVR-INR-TVR-INL-TVR-REFR-TVR-REFNC40L-SW-IN34

17、1L-SW-IN2424345L-SW-IN1TESTVDDSS1R-SW-IN4R-SW-OUTR-ZX-INR-ZX-AGNDR-MVR-INR-MVR-AGND1R-SW-IN3R-SW-IN2R-SW-IN1NCVSSLatchLatchLatchLatchLatchLatchZero crossingdetectioncircuitLatchLatchLatchDecoder2726252423Latch22212019181716151413122SS23CS14CS25MUTEM6GND8MUTE9CK10DATA11STB7TCTiminggeneTest andPower O

18、N resetLevel shift123487651OUT1IN1IN+VCCVCC+2OUT2IN2IN+OUTVCCVCC+36 pF37 pF14 pF7 pF15 460 15 IN+INIC404-406: NE5532DRDual low-noise operational amplifiersIC414: BA15218FDual high slew rate, low noise operational amplifier+12348765OUT1 IN1+ IN1VEEVCCOUT2 IN2+ IN21ch2chA+-1OUTPUT AINVERTING INPUT ANO

19、N-INVERTINGINPUT AV-B2348V+OUTPUT BINVERTING INPUT BNON-INVERTINGINPUT B765IC404-406: LME49723MADual high fidelity audio operational amplifierFUNCTION (2)s400s400s400s400s400s400s403s403s403s403s403s403s401s401s401s401s402s402s404s401s401s401s401s404to FRONT (2)_CB504Page 59C9to FUNCTION (1)_W3003Pa

20、ge 55K3to FRONT (1)_CB517Page 59K6to MAIN (1)_W102Page 58A3to MAIN (2)_W202Page 58A8to FRONT (11)_W6Page 61G4to FUNCTION (1)_W3001Page 55K4to FUNCTION (1)_W3007Page 55K4to FUNCTION (1)_W3002Page 55K6to FUNCTION (1)_W3005Page 55K6W1CB25CB23IC52IC51W11AW11BCB2W10ACB3CB4W10BW3W4A12345678910BCDEFGHIJKLM

21、NA-S100057# All voltages are measured with a 10M/V DC electronic voltmeter.# Components having special characteristics are marked s and must be replaced with parts having specifications equal to those originally installed.# Schematic diagram is subject to change without notice.FUNCTION 3/3AC29.8AC8.

22、60000.7005.05.05.0005.105.15.16.56.55.13.36.53.30005.00.8007.67.68.97.609.57.67.67.63.38.23.37.68.27.907.68.27.63.207.67.6-19.40019.612.010.60011.9004.912.2-12.111.901.30-12.0-19.50019.512.0-19.412.1IC51: NJM7812FAVoltage regulatorINPUTOUTPUTCOMMONIC52: NJM7912FAVoltage regulatorCOMMONOUTPUTR23R24R1

23、3R14R20R17D3Q22Q21Q25Q20Q24Q18Q9R18R19R16R15R21R12R11R10Q17R9R8R7R5R4D2D1R6C1C2C3R22Q11Q13Q14Q15Q19Q16Q23Q8Q7Q2Q1Q6Q5Q3Q10Q12Q4R1R2R3INPUTFUNCTION (3)s310C3036C3037C3041C3042UR05810100/35UR2574747/35UR2574747/35UR2574747/35UR2574747/35UR2574747/35UR2574747/35s311R3044R3050V8070901P100HF355101/2P100H

24、F355101/2P100HF355101/2P100HF355101/2P100HF355101/2P100HF355101/2P100s400C4049C4050C4051C4052C4053C4054WK0418010/16WM098004.7/16WM098004.7/16WM098004.7/16WM098004.7/16WM098004.7/16WM098004.7/16s401C4093C4094C4114C4115C4127C4128C4233C4234UR05810100/35UR2574747/35UR2574747/35UR2574747/35UR2574747/35UR

25、2574747/35UR2574747/35s402C4108C4110UU2371010/16WM098004.7/16WM098004.7/16WM098004.7/16WM098004.7/16WM098004.7/16WM098004.7/16s403IC404IC405IC406YA089A0LME49723MAX5482A0NE5532DRX5482A0NE5532DRX5482A0NE5532DRX5482A0NE5532DRX5482A0NE5532DRX5482A0NE5532DRs404R4072R4164V8070901P100HF355101/2P100HF355101

26、/2P100HF355101/2P100HF355101/2P100HF355101/2P100HF355101/2P100to FRONT (13)_CB79Page 61H6to FUNCTION (1)_CB302Page 55K2To POWER TRANSFORMERto MAIN (3)_W317Page 58L3to FRONT (1)_CB501Page 59B4to FRONT (14)_W8A, W8B(R, L models)AC INTo POWER TRANSFORMERPOWER ON/OFF switch(U, C, T, K, A, B, G, J models

27、)600mm2PPage 61D9W102CB52CB72CB54CB75CB55IC102W103CB21CB22W303CW104CB24W317CB26W303DW303BW303AW316W318W315W314W304DW304BW304AIC303IC301IC302IC300W304CCB74CB76CB73W204W203CB71IC202CB84CB79CB80CB77CB78CB57CB58CB59CB64CB60W202A12345678910BCDEFGHIJKLMNA-S100058# All voltages are measured with a 10M/V DC

28、 electronic voltmeter.# Components having special characteristics are marked s and must be replaced with parts having specifications equal to those originally installed.# Schematic diagram is subject to change without notice.MAINAC82.6AC48.1DC47.2DC47.2AC35.1AC35.1AC35.1AC35.1DC46.9DC46.952.452.452.

29、452.46.46.47.01.96.41.754.9-56.452.452.454.454.453.653.052.40.7-43.20.70-1.754.953.6-49.8-50.453.00.752.40.70-43.053.0-43.0-43.8-44.5-44.9-1.7-43.7-43.01.7-45.41.7-44.9-45.51.71.7-45.5-44.954.9-45.6-45.51.5-43.21.51.51.71.71.654.91.71.71.71.71.7-43.2-44.954.91.7054.854.900.95.100.610.40.60.654.9056.

30、50-56.4031.90-31.8023.404.6-23.2023.44.40-23.400-15.5-16.50.60-15.64.54.6-18.3-18.3-45.2-46.25.1-17.5-46.3-45.35.10-16.5-15.6-23.2023.4004.43.7-16.5-15.55.1004.5-16.5-18.85.15.1-16.25.1-16.2-45.1-45.15.1-18.8-46.3-45.454.810.4-43.0-43.0-43.8-1.754.854.854.701.71.71.7-44.5-45.61.7-45.9-45.61.7-45.9-4

31、5.654.7-45.6-45.41.51.71.51.71.51.544.91.7-45.5-44.91.7-45.5-44.91.7-45.5-44.9-1.553.053.053.554.353.854.452.452.40.60.60.60.653.0-42.9-50.353.552.452.452.46.26.70.21.71.66.71.752.452.46.20.71.61.76.20-43.0-49.7-44.9-44.41.5-42.952.454.454.854.8-54.8-43.51.5-44.4-43.8-45.5-45.51.7-45.5-45.61.61.7-45

32、.9-44.90.600.60-17.5-15.5-15.5-16.5-16.5-15.600-16.5-15.60-16.523.400.63.2-23.403.7-43.9-45.4-44.5-45.4-45.9-45.5-45.9-45.9-45.5-45.5-45.4-45.7-45.7-45.61.7-44.9-45.51.754.954.453.97.07.01.91.71.96.400.95.1Ground pointGround pointOUT LMAIN (1)MAIN (2)MAIN (3)MAIN (4)MAIN (5)Idling adjustmentIdling a

33、djustment#Note) Those parts marked with “#” are not included in the P.C.B. assy. （部品、基板含。） IC102, 202: LM61CIZTemperature sensorto FUNCTION (2)_CB406Page 56M4to FUNCTION (2)_CB405Page 56M2to FUNCTION (3)_CB25Page 57C6to FRONT (11)_CB34Page 61A3To POWER TRANSFORMERTo POWER TRANSFORMERTo POWER TRANSFO

34、RMERTo POWER TRANSFORMERto MAIN (1)_CB52C5to MAIN (2)_CB75F6to MAIN (1)_CB55F1to MAIN (3)_W314M2to FRONT (1)_CB521Page 59K8to FRONT (12)_W101A, W101BPage 61H4to FRONT (13)_W201A, W201BPage 61H8安全対策 製品内部高電圧部分危険。修理際、絶縁性手袋使用安全対策行。 下記箇所電源OFF後電荷残、高電圧維持危険。修理作業前放電用抵抗 （5 k/10 W） 下記箇所端子間接続放電。放電所用時間約30秒間。1. M

35、AIN （3） P.C.B.C3082. MAIN （3） P.C.B.C3093. MAIN （3） P.C.B.C3354. MAIN （3） P.C.B.C336Safety measures Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures during servicing, such as wearing insulating gloves. Note that positions indicated below ar

36、e dangerous even after the power is turned off because an electric charge remains and a high voltage continues to exist there.Before starting any repair work, perform discharge by connecting a discharge resistor (5k-ohms/10W) between terminals at following positions. The time required for dischargin

37、g is about 30 seconds.1. C308 on MAIN (3) P.C.B.2. C309 on MAIN (3) P.C.B.3. C335 on MAIN (3) P.C.B.4. C336 on MAIN (3) P.C.B.5 k-ohms10 W5 k-ohms10 W5 k-ohms10 W5 k-ohms10 WCB501IC505IC501CB515IC502JK501JK501CB503CB524CB525CB504W5002IC504CB517CB519CB521CB507CB509W5004W5006W5003AW5005AW5005BW5009AW5

38、009BW5007AW5007BW5003BCB512W5008IC503A12345678910BCDEFGHIJKLMNA-S100059# All voltages are measured with a 10M/V DC electronic voltmeter.# Components having special characteristics are marked s and must be replaced with parts having specifications equal to those originally installed.# Schematic diagr

39、am is subject to change without notice.FRONT 1/300.75.10.30.51.800012.05.65.85.15.14.34.33.65.17.45.85.85.0005.62.62.61.31.32.62.62.82.43.05.0-12.1-12.15.05.105.0-12.10000011.900-12.112.000011.900-12.100011.911.911.912.012.012.012.0-12.1-12.10011.912.0-12.100011.912.0012.0-12.112.000011.90-12.112.00

40、11.90-12.112.04.95.35.35.3-12.012.05.75.75.05.05.05.3-12.05.05.3-12.05.05.15.15.15.10.25.10005.15.15.13.93.91.31.55.05.15.005.15.005.04.65.005.05.15.05.15.05.15.05.15.00.25.05.15.05.100.60.80.60012.012.00.80.600000000.70.75.005.01.50000005.004.95.01.03.91.3005.05.00004.90000000001.81.01.33.02.42.80.

41、25.03.9000000.50.55.0002.12.504.95.000005.05.001.0A-212A-14162COM37455INH6VEE7GND8Vcc16215114013312A11B10C9IC501: TC74HC4051AFEL8-channel analog multiplexer/demultiplexerLogicLevel ConverterOUTCINOUTCINABCINHCOM01234567IC503: LB1641Motor driverINPUT LOGICIN 1IN 2VZP1P2OUT 1OUT 2VCC 2VCC 1GNDPRE DRIV

42、ER13281097465IC504: LC709004A-TLM-EI/O-expander for microcontrollerControl logicport 0 I/O bufferSerial/parallel converter/shift registerI/O control/output registerDINVDDDOUTVSSCLK#CS#RES#P00P07214151934212417port 1 I/O bufferP10P17158213VOUTGNDVIN+IC505: RH5RE58AA-T1-FAVoltage regulatorVrefPOINT A-

43、1 XL501 (Pin 23 of IC502)POINT A-2 1 / Pin 1, 2 / Pin 3 of CB5011CB501 (+5V)POWER ONPOWER OFFCB501 (/RES) 21CB501 (+5V)CB501 (/RES) 2POWER ONIC502: M38039xxxxxSingle chip 8-bit microprocessorP6 (8)A/Dconverter(10)PWM(8)I/O port P65 678910 11432P0 (8)I/O port P050 51 52 53 5455 5649P2 (8)I/O port P2(

44、LED drive)34 35 36 37 3839 4033P5 (8)INT3VREFXINMainclockinputMainclockoutputSub-clockinputSub-clockoutputAVSSINT00INT01INT41INT1INT2INT40P3 (8)I/O port P5I/O port P313 14 15 16 1718 1957 58 59 60 61 62 63 6412P4 (8)I/O port P421 22 23 24 2528 2920SI/O2(8)ROMAMICROPROCESSORRAMClock generating circui

45、tSI/O1(8)D/Aconverter2 (8)D/Aconverter1 (8)SI/O3(8)P1 (8)I/O port P142 43 44 45 4647 4841XYSPCLPCHPSTimer Y (8)Prescaler Y (8)Timer Z (16)Prescaler X (8)Prescaler 12 (8)Timer X (8)Timer 2 (8)Timer 1 (8)302726XCIN28XOUT31XCOUT29VSSData bus32VCCCNVSSCNTR0CNTR1CNTR2RESETReset input1MICROPROCESSORFRONT

46、(1)FRONT (7)FRONT (5)FRONT (4)FRONT (6)FRONT (3)FRONT (9)FRONT (2)TREBLE+/-BASS+/-BALANCEL/RVOLUMEINPUTSELECTORAUDIO MUTEPOWERindicatorINPUT indicatorTUNERLINE 1LINE 2CDPHONOMAINDIRECTAUDIOMUTESPEAKERSPHONESOFFABA+Bto FUNCTION (1)_W3004Page 55K8to MAIN (2)_W203Page 58K6to FUNCTION (2)_W4005Page 56M3

47、to FUNCTION (2)_W4004Writing portPage 56M8to FUNCTION (3)_W1Page 57C5W1003W1002W1001A12345678910BCDEFGHIJKLMNA-S100060# All voltages are measured with a 10M/V DC electronic voltmeter.# Components having special characteristics are marked s and must be replaced with parts having specifications equal

48、to those originally installed.# Schematic diagram is subject to change without notice.FRONT 2/3010.60.60-10.5-0.60-10.5-0.60-10.5-0.60-10.5-0.610.600.610.600.610.600.610.600.6-10.5-0.5-0.50-10.5-0.5-0.50-0.50-10.50-0.5010.60.6010.60.6010.60.625.124.224.724.60.825.20.824.20.725.20.724.724.724.625.124

49、.225.124.624.425.124.424.224.65.424.26.06.006.0-0.10.15.55.40.1-0.7-24.70.7-0.1-25.2-0.7-0.1-25.30.825.70.20.725.70.224.2-24.7-25.2-0.7-24.725.2-24.6-24.2-11.8-11.8-11.811.9-11.811.920.925.7-25.2-20.720.925.7-20.700000.60.60.50.50.6-0.50.106.00.10.15.55.4024.60.1FRONT (10)PHONOMM/MCSWITCHto FUNCTION

50、 (1)_CB301Page 55B3to FRONT (11)_CB27Page 61G3to FUNCTION (1)_CB305Page 55K9CB34CB27W6W12AW12BW12CW12DW8AW8BW12EW12FW12GCB59W101BW101ACB79W201BW201AA12345678910BCDEFGHIJKLMNA-S100061# All voltages are measured with a 10M/V DC electronic voltmeter.# Components having special characteristics are marke