Voltage Charts - JVC GR-DVM90U Service Manual

Note: Parts whose data cannot be obtained by physical measurement (for example, CSP IC, etc.) are
omitted from the following chart in some cases.

4.40 VOLTAGE CHARTS

<CPU> <MSD CPU> <A/HP SEL>
MODE MODE
MODE
REC PLAY
REC PLAY
PIN NO. PIN NO.
PIN NO.
IC1002 IC1402 IC2701
1 2.7 2.7 1 2.8 2.8
2 0 0 2 0 0
3 2.8 -
3 2.7 2.7
4 0 0
4 3 3
5 3 -
5 3 3
6 3 3 IC2751
6 3 3
7 1.5 1.5 7 3 -
8 1.5 1.5 8 3 3
9 0 0 IC1403
10 0 0 1 3 3
11 0 0 2 3 3
12 0 0 3 3 3
13 0 0 4 0 0
5 3 3
14 0 0
6 3 3
15 0 0
7 3 3
16 0 0
17 0 0 8 3 3
18 0 0 IC1405
19 2.9 2.9 1 3 3
20 2.8 2.8 2 0 0
IC1003 3 0 0
1 3 3 4 0 0
2 2.3 2.3 5 0 0 Q2701
3 3 3 6 0 0
7 3 3
4 0 0
8 3 3
5 3 3
Q1401 Q2703
6 3 3
7 3 3 E 3 3
8 3 3 C 3 3
IC1004 B 3 3
1 - - Q1402 Q2704
2 - - 1 0 0
3 - - 2 3 3
4 - - 3 3 2.9
5 - - 4 2.8 2.8 Q2705
5 0 0
6 - -
Q1403
7 - -
1 0 0
8 - -
Q2751
IC1005 2 0 0
1 3 3 3 3 2.9
2 3 3 4 0 0
3 3 3 5 2.9 2.9
4 0 0 Q1405 Q2752
5 3 3 E 0 0
6 3 3 C 0.5 0.7
7 3 3 B 0 0
Q1406 Q2753
8 3 3
E - -
IC1006
C - -
1 3 3
2 3 3 B - -
Q2754
3 3 3 Q1407
4 0 0 E - -
5 0 0 C - -
6 0 0 B - -
7 0 0 Q1408 Q2755
8 3 3 E - -
IC1008 C - -
B - -
1 3 3
2 3 3
3 3 3
4 0 0
Q2756
5 3 3
6 3 3
7 3 3
8 3 3
IC1009 Q2757
1 3 3
2 3 3
3 3 3
Q2758
4 0 0
5 2.9 3
6 3 3
7 3 3
Q2759
8 3 3
MODE MODE
REC PLAY
REC PLAY
PIN NO.
PIN NO.
39
Q2760
1 0.8 0.5 E 0 0 40
2 0 0 C 0 0 41
3 0 0 B 0 0 42
4 0 0 43
5 4.7 4.7 44
<DVMAIN> 45
1 0 0 46
MODE
47
2 0 0 REC PLAY
PIN NO.
48
3 0 0
49
4 0 0
IC3004
5 0 0 50
1 0 0
6 0 0 51
2 1.6 0.8
7 -7.2 -7.2 52
3 0 0
8 0 0 53
4 1.8 0.9
9 4.7 4.7 54
5 1.8 1.8
10 0 0 55
IC3005
11 0 0 56
1 1 1
12 0 0 57
2 1 1
13 0 0 58
3 0 0
59
14 0 0 4 0 0.9
60
15 0 0
5 2 2
16 4.7 4.8 61
62
E 0 0 63
<DVEQ/DVANA>
C 0 0 64
MODE
B 3 3 Q3551
REC PLAY
PIN NO.
E
E 0 0 C
IC3202
C 0 0 B
1 2.7 1.3
B -0.4 0 Q3552
2 0 3
E
3 0 0
C
E 0 0
4 3 1.1
B
C 0 0
5 3 3
B 0 0
IC3203
1 1.8 1.8
E 0 0
2 0 0
C 4.7 4.7
3 1.3 1.2
B 0 0
4 2 2
5 3 3
E 0 0
IC3301
C 0 0
1 0 0
B 3 3
2 2.2 1.3
3 0 1.4
E 4.7 4.7
4 0 0.7
C 0 0
5 0 1.7
B 4.7 4.7
6 1.1 1.1
7 0 1.8
E 4.7 4.7
8 0 1
C 0 0
9 0 0
B 3.5 3.5
10 0 0
11 0 0
E 0 0
12 0 0
C 3.5 3.5
13 3 3
B 0 0
14 3 3
15 2.2 1.9
1 - -
16 3 3
2 - -
17 0 1.2
3 - -
18 0 1.5
4 - -
19 0 0
5 - -
20 0 1.4
6 - -
21 0.7 1.7
22 0.7 1.6
E - -
23 3 3
C - -
24 3 3
B - -
25 2.9 0
26 3 3
E - -
27 0.8 0
C - -
28 0 0
B - -
29 0 0
30 2.2 2.2
E 0 0
31 0.5 0.5
C 0 0
32 2.2 2.2
B 3 3
33 0.6 0.5
34 1.9 1.9
E 0 0
35 1.8 1.5
C 4.7 4.7
36 1.7 1.5
B 0 0
37 2.2 1.6
38 0 1.5
<PRE/REC>
MODE
MODE
REC PLAY
REC PLAY
PIN NO.
PIN NO.
0 0 IC3501 Q3504
1 3 2.3
0 0
2 2.6 1.9
0 0
3 3 3
0 0
4 0 0
1.6 1.6
5 0 0
1.4 1.5
<VIDEO OUT>
6 0 0
1.2 1.2
7 2.7 3
0.7 0.7
MODE
8 0 0.7
1.2 1.3
PIN NO.
9 0.5 0
1.8 1.8
IC3701
1.3 1.3 10 0 0
11 2.7 2.6
0.6 0
12 0.6 0.6
0 0
13 2.6 2.6
0 0
14 3 3
0.5 0.5
15 0.6 0.6
1.5 1.5
16 0 0
3 3
17 0 0
3 3
18 0.8 0.5
3 2.9
19 4.8 4.8
3 3
20 1.2 1.3
2.7 2.7
2.5 2.4 21 0.6 0.7
22 2.7 2.2
0 1.5
23 0 0
2.6 2.5
24 2.2 1.1
1.9 2
25 3 3
0.4 0.8
26 0 0
27 0 0
4.8 4.8
28 -0.9 1.8
4.8 4.8
29 4.8 4.8
4.1 4.8
30 4.8 4.8
31 4.7 4.8 IC3702
0 0
32 -1 1.8
0 4.8
0 0 33 0 0
34 0 0
35 3 3
36 1.6 1.1
37 0 0 Q3701
38 2.7 2.2
39 0.7 0.7
40 1.3 1.3
41 0 0 Q3707
42 0 0
43 3 0
44 0 0
45 1.5 3
46 3 1.5
47 0 3
48 2.9 3 Q3708
49 0 0
50 0 0
51 0 0
52 0 0 Q3709
53 0 0
54 0.7 0
55 0.6 2.3
56 0 0 Q3710
57 2.7 1.1
58 3 2.2
59 3 2
60 3 3 Q3711
61 2.6 1.8
62 3 2.5
63 0 0
64 1.6 1 Q3712
Q3501
E 0 0
C 2.4 1.1
B 0.6 0.7
Q3502
E 0 0 Q3713
C 0 0
B -0.8 0.7
Q3503
E 0 0 Q3731
C 0 0
B -0.7 0.7
4-85 4-86
<CDS>
<DSP>
MODE
MODE
REC PLAY REC PLAY
PIN NO. PIN NO.
IC4201 IC4302
1 0 0 1
E 0 0
2
C 1.9 1.1 2 1.2 0
3
B 0.7 0.7 3 1.2 0
4 1.3 0 4
5 1.3 0 5
6 1.2 0 IC4304
7 1.7 3.1 1
REC PLAY 8 1.2 0 2
9 1.4 0 3
10 0.9 0 4
11 0 0 5
1 1.8 0
12 0 0 6
2 1.5 1.5
7
3 1.3 0 13 0 0
8
4 1.2 2.3 14 0 0
5 0 0 15 3.1 3.1 IC4305
6 0 0 16 1.3 1.3 1
7 0 0 17 3 3 2
8 0 0 18 2.4 2.4 3
9 2.8 0 19 2.4 2.5 4
10 0 0 20 2.6 2.6 5
11 1.9 0 21 0 0 6
22 0 0 7
12 0 0
23 3 3.1 8
13 0 0
IC4401
14 2 0 24 0 0
1
15 4.8 4.8 25 0 0
16 3 3 26 2 0.5 2
17 30 0 27 1.5 1.4 3
18 1.4 0 28 2 0 4
19 1.8 0 29 2 0 5
20 1.9 0 30 0 0 6
31 3 3.1 7
1 - - 32 0 1.3 8
2 - - 33 1 1.2 9
34 1.5 1.1 10
3 - -
11
4 - - 35 1.2 0
12
5 - - 36 0 0
37 0 0 13
E 0 0 38 3 3.1 14
C 0 0 39 0 0 15
B 3 3 40 0 0 16
41 3 3.1 17
1 1.2 1.2 42 0 0 18
2 0.7 0.6 43 3 3 19
3 0 0 44 3 3 20
45 3 3 Q4351
4 0 0
46 3.1 3 E
5 0.6 0.6
6 0 0 47 0 0 C
48 0 0 B
E 0 0 IC4202 Q4352
C 0 0 1 0 0 1
B 0 0 2 4.8 4.8 2
3 3.1 3.1 3
E 0.8 0.7 4
C 0 0 5
6
B 0 0
Q4353
1
E 1.2 1.2
2
C 1.2 1.2
B 0.7 0.7 3
4
E 0.8 0.8 5
C 4.8 4.8 6
B 1.2 1.2 Q4354
E
1 4.8 4.8 C
B
2 4.8 4.8
3 4.8 4.8
4 0.7 0.7
5 0 0
E 0 0
C 4.8 4.8
B 0 0
E 1.7 1.6
C 0 0
B 1.1 1
<TG/VDR>
MODE
REC PLAY REC PLAY
PIN NO.
IC5001
3 3
1 0 0
0 0
2 3 3
1.3 1.2
3 3 3
2.4 2.4 4 0 0
3 3 5 3 3
6 3.1 3
2.9 2.9 7 0 0
3 3 8 3 3
3 3 9 3 3
0 0
10 3 3
0 0
11 3.5 3.5
0 0
12 0.5 0.5
2.8 2.8
13 0 0
3 3
14 0 0
15 1.6 1.7
0 0 16 0 0
0 0 17 0 0
0 0 18 1.3 1.2
0 0 19 3.5 3.5
2.8 2.8 20 2.4 2.3
2.9 2.8
21 2.4 2.4
2.9 2.9
22 3 3.1
3 3
23 0 0
24 1.2 1.1
0 0
25 2.6 2.6
2 2 26 3 3
1.6 1.6 27 3 3
0 0 28 0 0
0 0 29 0 0
1.5 1.5 30 0 0
0 0 31 0.4 0
3 3 32 0 0.5
0.7 0.7
33 3 3
3 3
34 0 0
3 3
35 1.1 1.1
1.9 1.9
36 1.2 1.3
1.2 1.2 37 1.1 1.1
2.7 2.5 38 3 3
0 0 39 0 0
3 3 40 0 0
3 3 41 0 0
0.8 0.8 42 1.4 1.4
2.7 2.7 43 0 0
0 0
44 0.6 0.6
45 0 0
1.2 1.2
46 0 0
0 0 47 1.5 1.5
0.6 0.6 48 1.5 1.5
49 1.5 1.5
0.7 0.7 50 0 0
0.7 0.7 51 0 0
0 0 52 -7.3 -7.3
0 0 53 0 0
0 0 54 14.8 14.8
0 0
55 0 0
56 0 0
1.2 1.2
57 0 0
1.1 1.1
58 0 0
0.6 0.6 59 0 0
0 0 60 -7.2 -7.2
0.6 0.6 61 -7.6 -7.6
0 0 62 -7.2 -7.2
63 -7.6 -7.6
1.1 1.1 64 0 0
0 0 IC5002
0.5 0.5
1 4.8 4.8
2 0 0
3 - -
4 3.5 3.5
5 4.8 4.8
IC5004
1 - -
2 - -
3 - -
4 - -
5 - -
6 - -
7 - -
8 - -