-25-
Service Manual EH1 chassis
On the Power/Def. Board
IC652
IC653
1
15.7V
2
0V
3
12.2V
1
0V
2 -15.6V
3 -12.0V
IC501
1
0V
2 -14.3V
3
0V
4
13.1V
5
0V
6
0V
7
0.8V
8 -12.2V
9
0V
10
0V
Q401
E
0V
C
32.0V
B
0.5V
Q402
E
0V
C
--
B
-1.6V
Q422
E
2.1V
C
12.3V
B
2.8V
Q471
E
0V
C
11.8V
B
0.6V
Q472
E
12.5V
C
0V
B
0.7V
Q474
E
0V
C
0.1V
B
0.7V
Q554
E
0V
C
51.7V
B
0V
Q421
E
135V
C
57.4V
B 134.5V
Q555
E
53.8V
C
13.2V
B
0V
Q556
E
54.7V
C
13.2V
B
53.8V
Q572
E
0V
C
0V
B
0.6V
Q612
E
-0.2V
C
0V
B
-0.2V
Q613
E
0V
C
--
B
0V
Q661
E
0V
C
5.3V
B
0V
Q611
E
7.9V
C
-0.4V
B
7.5V
Q664
E
0V
C
37.8V
B
0.1V
Q641
E
6.4V
C
37.8V
B
7.0V
Q612-C
<Power drive>
1V/div.
10
µ
s/div.
Q613-C
<power out>
200V/div.
10
µ
s/div.
Q402-C
<H drive>
10V/div.
10
µ
s/div.
Q401-C
<H out>
250V/div.
10
µ
s/div.
Q472-E
<Pcc>
5V/div.
2ms/div.
IC501-pin3
<V out>
10V/div.
2ms/div.
Q611-C
<Power amp>
1V/div.
10
µ
s/div.
On the Sub/Def. Board(1)
IC361
1
8.0V
2
2.4V 3
3.8V
4
7.0V
5
7.0V
6
-
7
-
8
-
9
0V
10
0.8V
11
13.1V
12
0.2V
13
0.2V
14
0V
15
0V
16
0V
17
4.0V
18
6.8V
19
4.1V
20
0V
21
12.0V
22
3.7V
IC2331
1
0.7V
2
0V 3
0.3V
4
0.4V
5
4.0V
6
3.3V
7
0.4V
8
0V
9
0V
10
0V
11
9.1V
12
9.1V
13
9.1V
14
4.0V
15
4.1V
16
9.1V
Q361
E
0V
C
0.5V
B
0.7V
Q364
E
0.2V
C
12.0V
B
0.2V
Q2312
E
0V
C
1.6V
B
0.2V
Q2313
E
0V
C
6.3V
B
0V
Q2314
E
0V
C
0.9V
B
0.4V
Q2311
E
0V
C
5.1V
B
-1.8V
Q2341
E
0V
C
4.5V
B
0.1V
Содержание 28H1
Страница 52: ...SANYO ELECTRIC CO LTD SERVICE MANUAL FOR EH1 CHASSIS ...
Страница 61: ...Part No 1AA6P2P0675 F3TT SHEET 5 7 POWER DEF BOARD Circuit side ...
Страница 62: ...MAIN BOARD Circuit side ...
Страница 75: ...Part No 1AA6P2P0674 F3TV SHEET 5 7 POWER DEF BOARD Circuit side ...
Страница 76: ...MAIN BOARD Circuit side ...