B1 Printed Wiring Board - Sony KDL-20B4050 Service Manual

Flat panel color tv
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A
B
C
1
2
A
D
B
C
3
4
5
6
7
8
~ B1 Board IC Voltage Table Side A ~
Ref No
Pin No
1
2
9
IC2002
3
4
5
1
2
10
3
IC2202
4
5
6
7
11
D
E
F
1-874-223-22
477-A
IC7200
IC7301
CN7300
CN4500
IC4006
IC4002
CN6400
CN6403
CN6402
Volts (V)
Ref No
Pin No
Volts (V)
Ref No
Pin No
Volts (V)
1.7
8
3.0
6
4.2
0
9
3.4
IC3402
7
5.1
1.7
10
3.4
8
8.5
0
IC2202
11
3.4
1
0
1.2
12
3.3
2
0
3.4
13
3.3
3
0
3.4
14
3.4
4
0
3.4
1
5.0
IC3600
5
0
4.0
2
4.2
6
4.2
0
IC3402
3
4.2
7
0
0
4
0
8
4.2
0
5
4.2
9
8.5
G
H
I
CN2201
IC7203
IC7100
CN4003
IC3600
IC3402
IC2202
IC4001
IC2200
IC2002
IC2001
Ref No
Pin No
Volts (V)
Ref No
Pin No
Volts (V)
Ref No
Pin No
10
8.5
6
0
11
0
7
0
IC4002
12
0
8
0
IC3600
13
0
IC4001
9
3.5
14
0
10
3.5
15
0
15
2.6
16
8.5
16
5.1
IC4003
1
2.6
1
2.0
2
2.6
2
2.0
IC4001
3
2.6
IC4002
3
2.0
4
2.6
4
0
5
2.6
5
11.9
IC4006
- 40 -
J
K
L
IC4560
IC5504
IC5500
IC5502
IC2204
~ B1 Printed Wiring Board Side A ~
Volts (V)
Ref No
Pin No
Volts (V)
Ref No
Pin No
Volts (V)
6
1.9
2
2.5
6
4.9
7
1.9
3
2.5
IC5500
7
4.9
8
5.2
4
0
8
4.9
1
0
IC4006
5
2.5
1
0
2
0
6
2.5
2
0
3
0
7
2.5
3
0
4
0
8
5.2
4
0
IC5502
5
3.0
1
0
5
4.9
6
3.0
2
0
6
4.9
7
3.5
IC5500
3
0
7
4.9
8
3.5
4
0
8
4.9
1
1.9
5
4.9
M
N
O
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