Sony TRINITRON KV-20FS120 Service Manual page 50

K BOARD IC VOLTAGE LIST
28 4.5
IC2401 IC2403
29 4.5
PIN VOLT PIN VOLT
1 8.3 1 4.5 30 4.5
2 GND 2 4.5
IC2404
3 19.6 3 4.5
PIN VOLT
4 8.3 4 4.5 1 n/c
5 19.6 5 4.5 2 4.0
6 3.2 6 4.5 3 4.0
7 GND 7 4.5 4 4.0
8 0.0 8 4.5 5 4.0
9 3.2 9 1.0 6 GND
10 9.1 10 4.5 7 n/c
11 9.7 11 3.4 8 3.8
12 3.2 12 3.3 9 4.0
13 3.3 13 4.5 10 4.0
14 8.3 14 4.5 11 4.0
15 GND 15 GND 12 4.0
16 19.6 16 9.0 13 4.0
17 8.3 17 4.9 14 4.0
18 0.0 15 4.0
IC2402
19 3.88 16 n/c
PIN VOLT
1 4.5 20 3.88 17 n/c
2 4.5 21 4.5 18 4.0
3 4.5 22 4.5 19 5.8
4 GND 23 4.5 20 GND
5 4.5 24 4.5 21 GND
6 4.5 25 4.5 22 4.0
7 4.5 26 4.5 23 2.65
8 9.0 27 4.5 24 4.0
KV-20FS120/21FM120/21FS120/21FA310/24FS120/25FS120
25 4.0 54 4.0 17 4.5
26 4.0 55 4.0 18 4.5
27 4.37 56 4.0 19 4.5
28 4.0 57 4.0 20 4.5
29 4.0 58 4.0 21 4.5
30 n/c 59 4.0 22 4.5
31 n/c 60 4.0 23 4.5
32 n/c 61 4.0 24 4.5
33 n/c 62 4.0 25 4.5
34 4.0 63 4.0 26 4.5
35 9.0 64 n/c 27 4.5
36 4.0 28 4.5
IC2405
37 4.0 29 4.5
PIN VOLT
38 1.45 1 7.7 30 4.5
39 4.0 2 4.6
All voltages are in V.
40 4.0 3 0.0
41 4.0 4 4.5
42 4.0 5 0.0
43 4.0 6 9.0
44 4.0 7 n/c
K
45 4.0 8 n/c
46 4.0 9 n/c
47 0.0 10 n/c
COMPONENT SIDE (KV-21FA310 ONLY)
48 n/c 11 4.5
49 n/c 12 4.5
50 4.0 13 4.5
51 3.0 14 4.5
52 3.0 15 4.5
A
53 3.0 16 4.5
B
C
D
E
K BOARD TRANSISTOR LIST
B C E
0.7 0.0 GND
Q2400
0.0 17.9 0.0
Q2401
4.8 0.0 4.8
Q2410
4.8 0.0 4.8
Q2411
4.8 0.0 4.9
Q2412
4.8 0.0 4.9
Q2413
0.0 0.2 GND
Q2414
0.0 0.7 GND
Q2418
0.0 0.0 GND
Q2419
All voltages are in V.
[AUDIO]
1 2 3 4
KV-20FS120/21FM120/21FS120/21FA310/24FS120/25FS120
K
[AUDIO]
CONDUCTOR SIDE (KV-21FA310 ONLY)
1 2 3
A
B
C
D
E
4
50