Sanyo AWM-2100 Service Manual page 25

VOLTAGE OF IC & TRANSISTOR
CD SECTION Test on CD Stop condition
IC700 TC9284
Pin No. 1 2
Voltage 0 2.3
Pin No. 17 18
Voltage 4.6 4.6
Pin No. 33 34
Voltage 1.6 1.9
Pin No. 49 50
Voltage 1.9 1.4
Pin No. 65 66
Voltage 0 0
IC701 TA2065F
Pin No. 1 2
Voltage 1 1.9
Pin No. 17 18
Voltage 1.9 2.3
Pin No. 33 34
Voltage 1.9 1.9
IC703 TA2092F
Pin No. 1 2
Voltage 0 3.6
Pin No. 17 18
Voltage 1.9 0
Transistors
(Working point)
Q701 8050 Q702 8050
E C B E
0 0 0.6 0
3CD DRIVER SECTION INITIAL POSITION
IC601 TA7291S
Pin No. 1 2
Voltage 0 7.9
IC602 TA7291S
Pin No. 1 2
Voltage 0 7.9
Transistors
(Working point) (V)
Q601 8050 Q602 8050
E C B E
0 0 0 0
3 4 5
2.5 4.7 2.5 2.3
19 20 21 22
4.8 2.2 4.7
35 36 37 38
4.7 1.7 4.7 1.9
51 52 53 54
1.4 1.9 1.9
67 68 69 70
0 1.5 2 1.8
3 4 5
1.9 3.8 1.4 1.4
19 20 21 22
0 4.5 0 1.9
35 36 37 38
1.9 1.9 1.9 1.9
3 4 5
7.7 3.6 1.9 1.9
19 20 21 22
7.7 1.9 3.5 7.7
Q703 608
C B E C B
0 0.6 1.2 1.1 0.5
3 4 5
0.4 0 0 7.9
3 4 5
0.4 0 0 7.9
P601 RPL-547
C B 1 2
0 0
1.1 0
6 7 8 9
0 4.7 4.7
23 24 25
0 0.1 0 4.7
39 40 41
1.9 1.8 3.8
55 56 57
0 1.9 0.6 1.9
71 72 73
1.8 0.6 0
6 7 8 9
1.4 1.9 1.9
23 24 25
1.9 1.9 1.3
39 40 41
1.9 1.9 1.9
6 7 8 9
3.6 1.9 3.5
23 24
3.6 0
Q704 8050 Q705 608
E C B E
5 6.8 5.7 4.8
(V)
6 7 8 9
0.4 4.7 0
(V)
6 7 8 9
0.4 4.9 0
P602 RPL-547
3 4 1 2 3
0.1 0 2.3 1.1 0.1
- 32 -
10 11 12 13
4.7 0 4.7 0
26 27 28 29
0 0.7 1.9 1.9
42 43 44 45
0 2.2 2.2 1.9
58 59 60 61
4.7 5 1.9 0
74 75 76 77
1.7 2.3 4.7 4.8
10 11 12 13
1.9 1.9 1.8 1.9
26 27 28 29
1.9 1.9 1.9 1.9
42 43 44 45
1.9 1.9 1.9 1.4
10 11 12 13
7.7 3.6 0 0
Q706 536
C B E C B
1.8 4 0 0 0.7
(V)
4
0
(V)
14 15 16
4.6 4.6 4.6
30 31 32
1.9 1.8 1.9
46 47 48
1.9 1.9 1.9
62 63 64
1.5 4 1.3
78 79 80
2.1 2.1 0
(V)
14 15 16
1.9 1.9 1.9
30 31 32
3.0 1.9 1.9
46 47 48
0 1.9 1.1
(V)
14 15 16
3.6 7.7 3.5
(V)
Q707 8550
E C B
8 8 7.2