Sony TRINITRON KV-20S90 Service Manual page 25

A BOARD IC VOLTAGE LIST
IC001 29
PIN VOLT 30
1 0.9 31
2 4.9 32
3 0.5 33
4 2.0 34
5 0.0 35
6 0.1 36
7 0.0 37
8 N/C 38
9 N/C 39
10 0.0 40
11 0.1 41
12 4.9 42
13 0.0 43
14 4.9 44
15 N/C 45
16 -0.1 46
17 -0.3 47
18 4.9 48
19 4.9 49
20 1.8 50
21 0.0 51
22 2.2 52
23 GND IC002
24 2.2 PIN
25 2.3 1
26 GND 2
27 4.9 3
28 N/C 4
A BOARD IC BLOCK DIAGRAMS
IC521: NJM4558M-TE2
N/C 5 GND
4.9 6 4.9
4.9 7 GND
N/C 8 4.9
4.9 IC003
2.6 PIN VOLT
N/C 1 GND
4.9 2 GND
4.9 3 GND
4.9 4 GND
4.8 5 4.8
N/C 6 4.8
0.0 7 GND
0.1 8 5.0
4.9 IC004
0.1 PIN VOLT
N/C 1 4.9
4.9 2 4.9
N/C 3 GND
N/C IC200
0.0 PIN VOLT
4.6 1 5.9
4.6 2 0.2
4.6 3 6.1
4 0.2
VOLT 5 6.1
7.5 6 9.1
GND 7 5.3
5.4 8 GND
GND
IC201 19
PIN VOLT 20
1 5.9 21
2 0.2 22
3 6.1 23
4 0.2 24
5 6.1 25
6 9.1 26
7 5.3 27
8 GND 28
IC301 29
PIN VOLT 30
1 3.4 31
2 N/C 32
3 1.3 33
4 5.3 34
5 4.9 35
6 4.5 36
7 N/C 37
8 5.1 38
9 N/C 39
10 GND 40
11 N/C 41
12 2.4 42
13 3.5 43
14 3.5 44
15 N/C 45
16 7.6 46
17 N/C 47
18 0.8 48
IC541: AN5522
Pump-Up
1 2
— 25 —
3.0 IC401
2.6 PIN VOLT
1.0 1 0.8
1.5 2 N/C
1.5 3 2.4
1.5 4 12.6
N/C 5 2.4
N/C 6 GND
N/C 7 0.8
N/C 8 6.5
0.0 9 GND
4.6 10 6.5
4.6 11 6.5
4.6 12 GND
9.0 13 6.5
4.9 IC521
4.9 PIN VOLT
N/C 1 N/C
N/C 2 N/C
N/C 3 N/C
N/C 4 GND
GND 5 8.6
5.3 6 9.8
7.2 7 1.3
5.5 8 12.9
9.1 IC541
5.3 PIN VOLT
N/C 1 2.6
1.9 2 12.9
N/C 3 -11.1
Thermal Protections
3
4
5
KV-20S90 / 21SE43C
4 -12.9
5 0.0
6 13.6
7 2.4
IC601
PIN VOLT
1 -55.3
2 -57.2
3 94.8
4 -41.6
5 -57.1
IC602
PIN VOLT
1 2.5
2 GND
3 10.9
All Voltages are in V
-
Amp
+
6 7