Yamaha-AX497-int-sch(1) 维修电路原理图.pdf

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1、13AX-497DPX-1200AX-497I BLOCK DIAGRAM10dB10dBPHONOCD/DVDSP ASP BPHONESTUNERAUXTAPEINTAPEOUTMDINMDOUTCD/DVD DIRECT AMPREC OUTSELECTORINPUTSELECTORPHONO EQ AMPCD/DVD DIRECT AMPMOTORDRIVERONONONOFFOFFOFF33.5dBMMain VR10dBRYPSLOUDNESSBALANCETONE CONTROLPURE DIRECTMAINMUTECD-DMUTEABPOWER AMPRYSPLB1515BBL

2、B12S+IC502IC501IC454IC451Q451,452SW301SW302SW581SW4T151D1518D153156D20D19Q3Q4Q151RY2RY151SW681RY3RY1Q1,2Q26Q27Q25Q530VR421VR531534IC302IC531,532IC421IC452IC457IC455IC456PDCDDPOWERMAINMUTERec Out SelectorSTANDBY/ONRYPS(Power ON/OFF)Remote ControlSERIAL DATA(Input & Rec Out)Input SelectMain VRProtecti

3、onPDCDDRYSPSW621U631IC301SW622SW531Q305CD-DMUTEQ303XL3014MHz1920116731,32423713,1453417333635,3841MicroprocessorRadioFans.CN 收音机爱 好者资料库ABCDEFGH123456IJK78AX-49721I SCHEMATIC DIAGRAM (FUNCTION)*All voltages are measured with a 10M/V DC electronic volt meter.* Components having special characteristics

4、 are marked Zandmust be replaced with parts having specifications equal tothose originally installed.* Schematic diagram is subject to change without notice.*電圧、内部抵抗10M電圧計測定。*Z印部品、安全性確保部品示。部品交換必要場合、記載部品使用。*本回路図、標準回路図。改良予告変更。IC302, 454457, 501, 502, 531, 532:NJM2068MD-TEDual OP-Amp+OUT1IN1VCC+VCCOUT2

5、12345+IN1IN2+IN2 +678IC451: NJU7313AMAnalog Function Switch13NC18 NC234567891011121430129282726252423222120191715CONTROLLEVEL SHIFTERLATCHLEVEL SHIFTERLATCHL1L2L3L4L-COM1L5L6L-COM2L7L8L-COM3STVDDVEER1R2R3R4R-COM1R5R6R-COM2R7R8R-COM3DATACKVSS16IC452: NJU7312AMAnalog Function Switch2345678910111214301

6、292827252423222120191715CONTROLLEVEL SHIFTERLATCHLEVEL SHIFTERLATCHL1L2L3L4L-COM1L5L6L-COM2L7L8L-COM3STVDDVEE13NCR1R2R3R4R-COM1R5R6R-COM2R7R8R-COM3DATACKVSS18 NC1626CD/DVD DIRECT AMP ONCD/DVD DIRECT AMP OFFPURE DIRECT ONPURE DIRECT OFFTO MAIN (1) W2Page 22 B-6TO MAIN (2) W151Page 22 I-1TO MAIN (3) C

7、B201Page 22 A-4TO MAIN (1) CB1Page 22 B-3TO MAIN (5) CB221Page 22 A-1TO MAIN (6) CB226Page 22 A-20000-16.90015.600000014.0-14.100000000015.615.6-15.7-15.70.10.10.10.15.05.000000.60.80.80.60.41.41.415.215.200000000000000000000000000000000000000000000.70.700014.0-14.100000014.0-14.100000014.0-14.1000.

8、1000.1-15.715.614.214.214.2000014.215.615.62.15.05.05.05.010.412.112.111.47.46.76.704.94.96.36.26.35.65.64.84.85.00000000000000000000.10.10.10.24.34.94.95.05.0-7.114.714.7-14.8-14.815.600-16.701.70.702.51.01.05.05.05.05.05.05.05.01.71.15.04.94.72.22.44.94.2000000000005.05.05.05.05.05.05.05.00.24.94.

9、91.72.15.02.15.02.15.02.15.05.04.92.14.92.10.212CH12CH24.7K4.7K2.4K2.4K1K1K510510270270IC421: LB1641Motor Driver23P15IN 11GND4VZ6IN 2OUT 18VCC 210OUT 29P2INPUT LOGICPRE DRIVER7VCC 1Point q (Pin 20 of IC301)Point wCH 1 : Emitter of Q309CH 2 : Collector of Q304AC POWER ON(Connect the power cable)AC PO

10、WER OFF(Disconnect the power cable)AC POWER ON(Connect the power cable)RadioFans.CN 收音机爱 好者资料库ABCDEFGH123456IJKL78AX-49722I SCHEMATIC DIAGRAM (MAIN)*All voltages are measured with a 10M/V DC electronic volt meter.* Components having special characteristics are marked Zandmust be replaced with parts

11、having specifications equal tothose originally installed.* Schematic diagram is subject to change without notice.*電圧、内部抵抗10M電圧計測定。*Z印部品、安全性確保部品示。部品交換必要場合、記載部品使用。*本回路図、標準回路図。改良予告変更。TO FUNCTION (1) W301Page 21 J-4TO FUNCTION (1) CB306Page 21 J-4TO FUNCTION (6) CB532Page 21 I-1TO FUNCTION (12) CB681Pag

12、e 21 G-6TO FUNCTION (1) CB306Page 21 J-4SPEAKERS0.16.20.10.16.215.716.316.3-16.3-16.3-15.7-21.3-21.4000055.655.655.655.30.155.055.01.21.20.60.1-0.5-0.5-1.1-1.10055.655.500-55.6-55.6-54.2-54.2-54.2-54.20.10.10.4-0.100-4.300-4.30.70.7-54.3-54.3-54.2-54.2-54.2-54.2-54.2-54.2-54.2-55.6-55.6-54.2-54.8-54

13、.8-54.3-54.3-54.3-54.3-54.30.10.10.70.7-54.3-53.7-53.7-1.1-1.1-1.1-0.5-0.5-0.501.21.20.60.10.10.10.1000.601.255.055.055.655.655.655.354.554.5-54.8-54.8-53.6-53.61.2-1.1-0.554.454.400000021.621.625.425.044.944.9000022.722.60.10.10.112.112.112.613.213.148.248.248.2AC43.00.70055.6 (46.2)-55.7(-46.3)44.944.90.40.40.70.70AC81.6AC32.7AC67.8WG43640 Vout +Vs GNDIC221, 226 : LM61CIZTemperature Sensor