Yamaha as 2000 schematic
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Extracted text from yamaha as 2000 schematic (Ocr-read)
Page 1
W2001 CB203 CB201 CB202 JK202 JK201 IC201 IC201 A 1 2 3 4 5 6 7 8 9 10BCDE FGH I J K L MN A-S2000 59 All voltages are measured with a 10MΩ/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. BALANCE SCHEMATIC DIAGRAMS 12.6 -12.5 0 0 -11.9 -11.9 0 00 0 05.86.4 6.4 0.3 0.30 -24.5 0.61.00.4 1.0 24.625.2 25.7 1.0 -0.8-0.2 -25.4 25.7 5.85.8 5.8 -24.5 -0.8 -25.1 -25.7-25.0 -0.20.4 1.0 24.6 0.3 05.86.4 6.4 0.3 0.300 -24.5 0.50.4 1.0 24.725.2 25.7 1.0 -0.7-0.2 -25.4 25.7 5.85.8 5.8 -24.5 -0.7 -25.1 -25.7 -25.0 -0.2 0.4 1.01.0 24.7 0.3 00 5.86.3 6.3 0.3 0.30 -24.5 0.51.00.4 1.0 24.625.2 25.7 1.0 -0.8-0.3 -25.4 25.7 5.85.8 5.8 -24.5 -0.8 -25.1 -25.7 -25.0 0.4 1.0 24.6 0.3 00 5.86.3 0.3 -25.70 -24.5 0.60.4 1.0 24.725.2 25.7 1.0 -0.8-0.3 -25.4 25.7 5.85.8 5.8 -24.5 -25.0 -0.8 -25.1 0.4 -0.2 1.0 1.0 24.7 0.3 CD BAL L IC201: NJM2068MD-TE2 Dual operational amplifier OUT 1 OUT 2 –IN1 +IN1 +IN2 -IN2 –VCC +VCC 1 2 3 48 7 6 5 + –+ – CD BAL L CD BAL R to FRONT (12)_CB59Page 66 H2 to FUNCTION (3)_W3Page 62 H8 to FUNCTION (1)_W3005Page 60 K2 to FUNCTION (1)_W3006Page 60 K2
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CB301 IC301 IC301 IC302 IC302 IC303 IC303 CB305W3004W3002W3001 W3003W3005 W3006 A 1 2 3 4 5 6 7 8 9 10BCDE FGH I J K L MN A-S2000 60 All voltages are measured with a 10MΩ/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 1/3 12.0 -11.9 -11.9 -11.9 -11.8 -11.9 -11.9 0 0-11.8 0 0-11.80 0 0 0 0 -12.5 0 12.6 0 0 0 0 0 012.6 -12.5 0 0 0 -12.60 0 012.6 0 0 -11.80 0-11.8 0 0-11.80 0-11.825.7 5.8 0.3 0.3 0.1 0.325.60.9 0 1.00.9 0 0.5 1.1 24.625.1 0.9 0.3 06.4 24.6 5.8 24.61.124.6 25.7 -0.90 -25.6 -24.5 -24.51.1 0.625.7-11.9 -11.9 -11.9 -11.9 0 -0.6 -25.6 25.7 0.6 25.7 0.6 0 -25.60.5 0 0.5 -25.6 0.91.1 -0.6 0.2 -0.9 -0.4 0.5 -0.1 6.3 5.8 5.8 -0.9 -25.0 -24.8 -25.6-0.6 0 0 0.3 0.3 0.3 5.8 5.8 25.7 5.8 0.3 0.3 0.1 0.324.60.9 0 1.30.9 0 0.5 1.1 24.625.1 0.9 0.3 06.4 24.6 5.8 25.71.125.2 24.6 25.7 -0.90.3 -25.6 -24.5 -24.51.1 0.525.7 0 -0.6 -25.6 0.91.1 0 -0.6 0.3 -0.9 -0.3 0.5 0.5 6.3 5.8 5.8 -0.9 -25.1 -24.8 -25.5-0.6 0 0.1 0.3 0.3 0.3 5.8 5.8 -11.9 CD L IN L CD BAL L FUNCTION (1) LINE 2 IC301: NJM2068MD-TE2 Dual operational amplifier OUT 1 OUT 2 –IN1 +IN1 +IN2 -IN2 –VCC +VCC 1 2 3 48 7 6 5 + –+ – IC302, 303: OP275GSR Dual bipolar/JFET, audio operational amplifier OUT A -IN A V-V+ OUT B 1 2 3 4 5 +IN A -IN B +IN B 6 7 8 to BALANCE_CB201Page 59 I5 to FUNCTION (2)_CB403Page 61 J4 to FUNCTION (2)_CB402Page 61 B6 to FUNCTION (2)_CB401Page 61 B5 to FRONT (1)_CB519Page 64 B5 to FRONT (10)_W1003Page 65 B5 to BALANCE_CB202Page 59 I7 to FRONT (10)_W1002Page 65 M5