-22-
Service Manual EH1 chassis
WAVEFORMS & VOLTAGES
On the CRT Board
TP47B
<Video out B>
50V/div.
10
µ
s/div.
DC=0V
TP47R
<Video out R>
50V/div.
10
µ
s/div.
DC=0V
TP47G
<Video out G>
50V/div.
10
µ
s/div.
DC=0V
Q711
E
3.6V
C
0V
B
3.0V
Q721
E
3.6V
C
0V
B
3.0V
Q731
E
3.7V
C
0V
B
3.1V
IC711
1
3.3V
2
12.2V
3
3.3V
4
0V
5
6.4V
6
210V
7
138V
8
138V
9
137V
IC721
1
3.3V
2
12.1V
3
3.3V
4
0V
5
6.4V
6
210V
7
141V
8
142V
9
140V
IC731
1
3.3V
2
12.1V
3
3.3V
4
0V
5
6.5V
6
210V
7
135V
8
136V
9
134V
On the Main Board(1)
IC001
1
1.6V 2
0V
3
0V 4
0V
5
1.5V 6
9.4V 7
13.2V
8
5.0V
9
27.7V
10
0V 11
5.0V
12
12.7V
IC101
1
11.1V 2
5.7V
3
6.8V 4
4.6V 5
4.7V 6
4.6V 7
0V
8
3.7V
9
12.1V
10
9.0V 11
4.1V 12
4.2V
13
6.8V 14
7.0V
15
11.2V
16
11.3V
17
4.6V
18
5.3V
19
4.7V 20
5.3V 21
5.3V
22
10.1V
23
5.1V
24
2.0V
IC201
1
8.1V
2
2.3V 3
2.3V
4
2.4V
5
4.1V
6
3.8V
7
2.3V
8
5.1V
9
0V
10
2.3V
11
2.2V
12
2.2V
13
0.7V
14
1.0V
15
0V
16
0.4V
On the Front Board
Q681
E
5.1V
C
15.3V
B
5.8V
Q682
E
5.0V
C
5.1V
B
5.6V
Q1111
E
4.5V
C
12.2V
B
5.1V
Q1121
E
4.5V
C
12.2V
B
5.1V
Q1131
E
4.5V
C
12.2V
B
5.1V
K7D-6
<B drive>
1V/div.
10
µ
s/div.
DC=0V
K7D-4
<R drive>
50V/div.
10
µ
s/div.
DC=0V
K7D-5
<G drive>
1V/div.
10
µ
s/div.
DC=0V
TPIK
<IK pulse>
2V/div.
10
µ
s/div.
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 ...