Sony FDL-PT222 - Watchman Lcd Color Tv, Service Manual

Page: 17 / 24

– 25 –
– 26 –
Pin Volt Pin Volt Pin Volt
IC301 1 3.0
2 3.1
3 0.6
4 -
5 3.5
6 2.5
7 -
8 -
9 2.8
10 3.0
11 2.9
12 3.1
13 GND
14
0.3
15 -
16 -
17 1.5
18 3.7
19 1.6
20 2.0
21 3.4
22 -
23 2.0
24 4.2
IC401 1 1.3
2 0
3 0.8
4 0.8
5 2.7
6 2.7
7 2.8
8 2.8
9 3.3
10 1.9
11 3.9
12 3.9
13 0
14 3.9
15 1.7
16 1.7
17 1.7
18 1.7
19 1.7
20 2.0
21 2.0
22 GND
23 3.4
24 -
25 3.8
26 3.3
27 0.9
28 0.9
29 0.9
30 0.8
31 0.3
32 3.8
33 GND
34
1.8
35 1.1
36 0
37 0.3
38 3.6
39 GND
40
0
41 2.1
42 0
43 3.5
44 GND
B BOARD IC VOLTAGE LIST
B C E
Q302 0.3 3.5 GND
Q303 3.6 1.8 4.1
Q402 3.9 4.4 3.2
Q403 2.1 0 GND
Q408 0 3.8 GND
B BOARD TRANSISTOR VOLTAGE LIST
1 2 3 4 5 6
Q406 GND -0.7 6.5 12.4 13.3 6.5
Q407 1.8 0 6.5 1.8 1.8 13.3
DIODE
*
D301 B-2
3
D302 B-2
3
D303 F-2
3
D401 C-3
3
D403 F-4
3
D404 F-4
3
D405 B-3 3
IC
IC301 C-3
IC401 C-4
TRANSISTOR
*
Q302 C-3
2
Q303 B-2
2
Q402 B-3
2
Q403 C-3
2
Q406 C-5
@º
Q407 B-5
@º
Q408 C-3 2
VARIABLE
RESISTOR
RV301 B-2
RV402 C-4
B BOARD
1
A
B
C
D
E
F
G
2 5
4 3
< Conductor Side >
< Component Side >
[ ]
CHROMA, LCD INTERFACE
– B Board –
B