Voltage Charts; Waveforms - JVC LT-42S90BB Service Manual

VOLTAGE CHARTS

<MAIN PWB>
[P.2-7 - P.2-8]
MODE MODE MODE MODE MODE
DC (V) DC (V) DC (V) DC (V) DC (V)
PIN NO. PIN NO. PIN NO. PIN NO. PIN NO.
IC6001 Q6105 IC1004 Q1207 10 3.1
1 0 E 0 1 5.5 E 0 11 3.1
2 1.8 C 0 2 5.5 C 0 12 3.1
3 1.8 B 2.7 3 5.5 B 0.5 13 3.1
4 0 Q6106 4 0 Q1301 14 3.1
5 1.8 E 0 5 5.5 E 0.1 15
6 1.8 C 2.6 6 5.5 C -0.3 16 1.2
7 0 B 0.2 7 5.5 B 0.1 17 3.1
8 0 Q6501 8 8.9 Q1302 18 2.7
9 2.8 E 11.7 IC7001 E 0 19 3.1
10 2.8 C -0.3 IC7002 C 0 20
11 NC B 12 1 0 B -0.3 21 2.8
12 0 Q6502 2 3.2 Q1303 22
13 0 E 0.1 3 0 E 0 23 2.8
14 0 C -0.6 4 3.2 C 0 24 3.1
15 2.8 B 0.1 IC7003 B -0.2 25 3.2
16 1.3 Q6503 1 0 Q7001 26 3.1
17 0 E 0 2 0 E 3.2 27 2.7
18 16.6 C 4.1 3 0 C 3.2 28
19 7 B -0.6 4 0 B 0.1 29 0.4
20 7 TU1001 5 2 Q7003 30 0.5
21 7 1 NC 6 2 E 3.2 31
22 7 2 NC 7 0 C 3.2 32
23 16.6 3 4.8 8 3.2 B 0.1 33
24 0 4 NC IC7004 Q7004 34
25 0 5 NC 1 NC E 3.2 35 0.5
26 13.5 6 NC 2 3.8 C 3.2 36 1.1
27 13.5 7 8.3 3 3.7 B 0.1 37 0.5
28 0 8 3.7 4 0 Q7006 38 1.1
29 0 9 NC 5 5 E 0 39 1.1
30 10.4 10 3 6 0 C 2.8 40 3.1
31 10.3 11 2.7 7 0 B -0.1 41 1.1
32 0 12 4.3 8 0 Q7008 42 1.1
33 0 13 0.6 9 0 E 0 43
34 13.5 14 2 10 0 C 3 44 1.1
35 13.5 15 31.9 11 0 B 0.1 45 1.1
36 0 16 NC 12 0 Q7009 46 3.1
37 0 17 2 13 5 S 2.5 47 1.1
38 16.6 18 0 14 5 D 3.8 48 1.1
39 7 19 0 15 5 G 3.2 49
40 7 20 0 16 5 Q7010 50 0.5
41 7 21 0 IC7005 S 2.4 51 1.7
42 7 1 NC D 3.7 52 0.8
43 16.6 2 2.4 G 3.2 53 1.2
[P.2-9 - P.2-10]
44 3.2 3 2.4 Q7011 54 1.2
MODE
DC (V)
PIN NO.
45 0 4 0 E 0 55 3.2
46 0 5 NC C 3.2 56 1.2
IC1001
47 13.5 1 4.3 6 0 B 0 57 1.2
48 13.5 2 4.7 7 NC Q7013 58
IC6011 3 8.9 8 0 E 0 59 1.2
1 2 4 3.3 9 NC C 3.2 60 1.2
2 4.1 5 0 10 NC B 0.1 61 3.1
3 2 6 8.9 11 NC Q7014 62 1.2
4 0 IC1002 12 0 E 0 63 1.2
5 2 1 2.6 13 3.2 C 3.2 64 0.5
6 2 2 2.6 14 0 B 0 Q8001
7 2 3 8.9 15 0 E 0.1
8 5.1 16 0 C
4 2.4
[P.2-11 - P.2-12]
IC6661 5 0 Q1101 B 0.7
MODE
DC (V)
1 0 6 8.9 E 0.2 PIN NO. Q8002
2 1.1 IC1003 C -1.5 IC8001 E
3 1.1 1 4.4 B 1.1 1 0 C 0.7
2 0
4 0 2 4.4 Q1102 B 0.5
5 3.2 3 4.4 E 0 3 0 Q8004
6 3.2 4 4.4 C 0 4 0 E
7 2.1 5 4.4 B -1.5 5 1.5 C 4.7
8 1.9 6 NC Q1103 6 0.7 B
9 1.3 7 NC E 0 7 4.6 Q8101
10 1.8 8 NC C 0 8 4.6 E 0.1
11 3.2 9 NC B -1.5 IC8101 C
12 0 10 0 Q1201 1 0 B 0.8
13 1.6 11 4.4 E 0.1 2 0 Q8102
14 1.6 12 4.4 C -1.7 3 0 E
4 0
15 1.1 13 4.4 B 0.9 C 0.5
16 1.1 14 0 Q1202 5 0.6 B 0.5
IC6771 15 2.4 E 0 6 0.2 Q8201
1 6.1 16 2.4 C 0 7 4.6 E 0.1
2 6.1 17 8.9 B -1.7 8 4.6 C
3 6.1 18 8.9 Q1203 IC8201 B 0.8
4 0 19 0 E 0 1 0 Q8202
5 6.1 20 4.4 C 0 2 0 E
6 6.1 21 4.4 B -1.7 3 0 C 0.7
7 6.1 22 4.4 Q1204 4 0 B 0.5
8 9 23 4.4 E 2 5 1.2
Q1003 C 2.8 6 0.7
24 NC
[P.2-13 - P.2-14]
E 2.1 25 NC B 0 7 4.6
MODE
DC (V)
PIN NO.
C 4.5 26 NC Q1205 8 4.6
B 2.7 27 NC E 3 IC8501 IC9151
Q1004 28 4.4 C 2.9 1 1.1 1 0.4
2
E 2.1 29 4.4 B 0 2 0.6
C 7.1 30 4.4 Q1206 3 0 3 3.2
B 2.8 31 4.4 E 0 4 3.1 4 3.2
Q1005 32 4.4 C 2.9 5 3.1 5 0.9
E 6.4 B 0 6 3.2
C 9 7 3.1
B 7.1 8 3.1
9 0
MODE MODE
DC (V) DC (V)
PIN NO. PIN NO.
IC9201 CN101A
1 15.9 1 3.1
2 23.8 2 2.6
3 4.9 3 0
4 0 4 0
0 5 0.4 5 0
6 0.9 6 0
7 3.2 7 3
8 4.7 8 3.1
IC9251 9 3.2
3 1 4.9 10 0
2 1.2 11 0
0 3 0
<CAPSENS PWB>
4 0.7
[P.2-17 - P.2-18]
5 3.3
MODE
DC (V)
IC9351 PIN NO.
1 6.3 IC7701
2 4.9 1 3.2
0 3 1.1 2 3.2
4 0
3 NC
5 0.4 4 2.4
0 6 0.9 5 2.4
0 7 2.9 6 NC
0 8 4.6 7 0.8
0 IC9401 8 NC
1 14.4 9 0
2 23.8 10 0
3 3.2 11 NC
4 0 12 0
5 0.4 13 NC
6 0.7
14 0
7 3.3 15 0
8 4.7 16 0
0 IC9451 17 0
1 3.2 18 0
2 3.2 19 0
3 2.4 20 3.2
4 NC 21 0
5 0 22 0
5 IC9511 23 NC
1 23.8 24 1.1
2 0
<LED PWB>
3 8.9
[P.2-19 - P.2-20]
IC9521
MODE
DC (V)
PIN NO.
1 2.6
2 23.7 Q8701
3 0
E 2.9
4 12.1 C 2.8
0 5 12.1 B 0
IC9601 Q8705
1 14.2 E 0
2 23.8 C 0
3 3.2 B 4.9
4 0
<IR PWB>
5 0.4
[P.2-21 - P.2-22]
6 0.6
MODE
DC (V)
PIN NO.
7 2.9
0 8 4.7
IC8851
IC9651
1 4.9
1 2.4 2 4.4
0 2 NC IC8852
3 0 1 2.9
4 1.1 2 4.9
5 3.2
3 0
0 6 NC
7 NC
0 8 3.2
IC9751
1 0.4
0 2 0
3 2.3
4 3.2
0 5 0.9
Q9201
E 0
C 0
B 0.6
0 Q9601
E 0
C 0
0 B 0.6
CN100F
1 13.5
2 0
3 0
4 3.2
5 4.9
6 3.2
7 11.9
0
8 0
9 23.8
10 23.8
11 23.8
12 0
13 0
14 0
15 31.9
(No.YA604<Rev.001>)2-29

WAVEFORMS

MAIN PWB(1/4)
TU1001-17
(H)
2.6 Vp-p
MAIN PWB(2/4)
IC1001-2 IC1002-2
(H) (H)
4.5 Vp-p 2.4 Vp-p
2-30(No.YA604<Rev.001>)