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TRANSISTOR VOLTAGE CHECK (MAIN PCB)
MODE
(TALK)
PARTS NO Emitter Collector
Base
Emitter Collector
Q1
8.43
8.25
7.72
0.56
Q2
0.00
0.10
0.65
0.00
Q3
5.08
8.26
5.75
0.04
Q4
0.02
3.11
0.63
0.00
Q5
0.00
0.00
0.00
0.00
Q6
3.14
0.17
0.75
0.00
Q7
2.66
4.53
3.28
0.00
Q8
0.00
0.00
0.00
0.00
Q9
0.14
2.41
0.77
0.00
Q10
4.10
0.00
4.05
1.38
TX
VOLTAGE CHECK (IC2)
(BELL)
MODE
(TALK)
PIN NO
Base
1
7.69
0.45
0.37
2
8.77
0.37
0.34
3
8.41
0.45
0.45
4
8.75
0.03
0.32
5
8.34
0.00
0.00
6
0.05
0.00
0.00
7
9.35
0.03
0.43
8
9.20
0.00
0.00
0.03
0.38
0.00
1.35
TX
(BELL)
32.0(AC)
23.1(AC)
23.1(AC)
23.1(AC)
24.3(AC)
0.70(AC)
23.2(AC)
14.9(AC)
IC1
IC2
RX
VOLTAGE CHECK (IC1)
MODE
(TALK)
(BELL)
PIN NO
1
0.00
4.10
2
0.00
4.10
3
0.00
4.10
4
0.00
4.10
5
0.00
0.00
6
0.00
0.00
7
4.10
0.00
8
4.47
1.47
9
0.00
1.45
10
0.64
1.43
11
0.00
0.35
12
0.00
0.00
13
0.00
0.00
14
4.10
4.10
15
4.10
4.10
16
4.10
4.10
17
4.10
4.10
18
4.10
4.10
19
4.10
4.10
20
4.10
4.10
21
4.10
4.10
22
4.10
4.10
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