Yamaha AS2000BL, Service Manual

Page: 59 / 90

W2001
CB203
CB201
CB202
JK202
JK201
IC201
IC201
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
A-S2000
59
★
All voltages are measured with a 10M
Ω
/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
0
0
0
0
5.8
6.4
6.4
0.3
0.3
0
-24.5
0.6
1.0
0.4
1.0
24.6
25.2
25.7
1.0
-0.8
-0.2
-25.4
25.7
5.8
5.8
5.8
-24.5
-0.8
-25.1
-25.7
-25.0
-0.2
0.4
1
.0
24.6
0.3
0
5.8
6.4
6.4
0.3
0.3
0
0
-24.5
0.5
0.4
1.0
24.7
25.2
25.7
1.0
-0.7
-0.2
-25.4
25.7
5.8
5.8
5.8
-24.5
-0.7
-25.1
-25.7
-25.0
-0.2
0.4
1
.0
1.0
24.7
0.3
0
0
5.8
6.3
6.3
0.3
0.3
0
-24.5
0.5
1.0
0.4
1.0
24.6
25.2
25.7
1.0
-0.8
-0.3
-25.4
25.7
5.8
5.8
5.8
-24.5
-0.8
-25.1
-25.7
-25.0
0.4
1.0
24.6
0.3
0
0
5.8
6.3
0.3
-25.7
0
-24.5
0.6
0.4
1.0
24.7
25.2
25.7
1.0
-0.8
-0.3
-25.4
25.7
5.8
5.8
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 –IN 1
+IN 1
+IN
2
-IN 2
–V CC
+V CC 1
2
3
4
8
7
6
5
+ – + –
CD BAL L
CD BAL R
to FRONT (12)_CB59
Page 66 H2
to FUNCTION (3)_W3
Page 62 H8
to FUNCTION (1)_W3005
Page 60 K2
to FUNCTION (1)_W3006
Page 60 K2