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IC801 (CPU)
Pin-1: 4.7V
2:
4.6V
3:
5.0V
4:
5.0V
5:
GND
6:
1.8V
7:
2.5V
8:
5.0V
9:
1.4V
10: 2.5V
11:
0.9V
12:
0V
13:
4.9V
14:
3.3V
15:
2.6V
16:
0V
17:
4.8V
18:
4.1V
19:
0V
20:
0V
21:
0V
22:
0V
23:
GND
24:
GND
25:
GND
26:
GND
27:
4.5V:
28: 5.0V
29:
0V
30:
2.4V
31:
4.9V
32:
5.0V
33:
0V
34:
4.9V
35:
5.0V
36:
5.0V
A101
TUNER
IC001
AUDIO AMP.
IC
5
0
1
V
E
R
T
. D
E
F
.
Q432
HORIZ. OUT
B
C
E
T431
H-DRIVE
TRANS.
Q613
POWER OUT
B
C
E
IC801
CPU
(Solder side)
IC802
MEMORY
IC201
IF/VIDEO/CHROMA
T401
F.B.T.
T611
CONVERTER
TRANS.
MAIN BOARD (Component Location)
F5TS
Q701
B-OUT
Q721
G-OUT
Q711
R-OUT
CRT BOARD (Component Location)
Waveforms & Voltages
(On the Main Board)
Q140
B 5.7V
C
0V
E 6.3V
Q141
B 5.9V
C
0V
E 6.5V
Q171
B 3.5V
C 9.3V
E 2.9V
Q261
B 1.6V
C 0V
E 2.3V
Q432
B 2.5V
C 131.7V
E 2.5V
Q576
B
0V
C 4.5V
E
0V
Q611
B 15.3V
C -0.2V
E 14.9V
Q612
B
0V
C -0.3V
E -0.2V
Q613
B
0V
C 324V
E -0.3V
Q631
B 3.5V
C 18.0V
E 3.3V
Q213
B 0.6V
C 0V
E
0V
5
.
0
V
p
-
p
H
o
r
i
z
.
2
.
5
V
p
-
p
V
e
r
t
.
6
.
5
V
p
-
p
H
o
r
i
z
.
Q431
B 0.3V
C 10.5V
E
0V
1
.
2
V
p
-
p
H
o
r
i
z
.
1
.
4
V
p
-
p
H
o
r
i
z
.
1
.
7
V
p
-
p
H
o
r
i
z
.
5
0
V
p
-
p
H
o
r
i
z
.
4
7
V
p
-
p
V
e
r
t
.
2
.
5
V
p
-
p
V
e
r
t
.
1
0
0
0
V
p
-
p
H
o
r
i
z
.
5
.
0
V
p
-
p
H
o
r
i
z
.
5
.
0
V
p
-
p
V
e
r
t
.
5
5
0
V
p
-
p
1
.
7
V
p
-
p
H
o
r
i
z
.
IC191
Pin-1: 9.2V
2:
GND
3:
5.0V
IC201 (IF/VIDEO/CHROMA) ::
Pin-1: GND
2:
4.5V
3:
0.4V
4:
5.3V
5:
1.0V
6:
1.5V
7:
1.5V
8:
4.9V
9:
0V
10: 4.6V
11:
0.6V
12:
2.4V
13:
0V
14:
4.7V
15:
5.4V
16:
5.1V
17:
4.4V
18:
2.5V
19: 2.3V
20:
2.4V
21:
4.1V
22:
8.6V
23:
2.5V
24:
2.6V
25:
5.2V
26:
4.8V
27:
1.0V
28: 2.6V
29:
3.4V
30:
2.5V
31:
2.7V
32:
3.1V
33:
3.7V
34:
1.6V
35:
3.0V
36:
1.9V
37:
0V
38:
1.6V
39:
2.7V
40:
3.1V
41:
1.4V
42:
9.2V
43:
1.7V
44:
1.7V
45:
3.5V
46: 2.8V
47:
2.3V
48:
2.3V
49:
4.0V
50:
4.1V
51:
3.1V
52:
5.6V
IC501 (VERT. OUT)
Pin-1: GND
2:
14.8V
3:
24.8V
4:
4.4V
5:
4.4V
6:
24.4V
7:
2.4V
IC001 (AUDIO AMP.)
Pin-1: 6.3V
2:
GND
3:
6.3V
4:
0.7V
5:
3.1V
6:
5.6V
7:
5.5V
8:
GND
9:
5.7V
10: 12.5V
IC802 (MEMORY)
Pin-1 GND
2:
GND
3:
GND
4:
GND
5:
5.0V
6:
5.0V
7:
GND
8:
5.0V
Q212
B
0V
C 4.7V
E
0V
Q661
B
9.9V
C 11.3V
E
9.3V
Q681
B
0V
C 9.9V
E
0V
Q683
B 23.9V
C 24.5V
E 24.6V
Q686
B 36.2V
C 0V
E 36.2V
Q871
B
0V
C 4.8V
E
0V
Q881
B -5.9V
C 4.1V
E
0V
Q685
B
0V
C 36.1V
E 1.0V
Q861
B 4.4V
C 4.9V
E 5.0V
Q684
B 0.7V
C 0V
E
0V
4.9Vp-p
5.9Vp-p
6.5Vp-p
5.2Vp-p
5.4Vp-p
2.3Vp-p
0.9Vp-p
1.8Vp-p
1.7Vp-p
47.2Vp-p
2.2Vp-p
4.9Vp-p
24.0Vp-p
920Vp-p
480Vp-p
IC201-pin11
<Sandcastle>
IC201-pin12
<H drive>
IC201-pin18
<R out>
IC201-pin19
<G out>
IC201-pin20
<B out>
IC201-pin21
<V drive>
IC201-pin36
<CVBS int.>
IC201-pin39
<Sync in>
IC201-pin38
<Y out>
IC501-pin2
<V out>
IC501-pin4
<V drive>
IC801-pin18
<H sync>
IC801-pin17
<V sync>
IC201-pin52
<IF out>
Q431-C
<H drive>
Q432-C
<H out>
Q432-B
<H out>
Q613-C
<Power out>
1.8Vp-p
IC651
Pin-1: 12.9V
2:
GND
3:
5.0V
(On the CRT Board)
Q701
B
2.1V
C 139.4V
E 1.7V
Q711
B
2.1V
C 139V
E
1.7V
Q721
B
2.0V
C 142.5V
E
1.6V
Q751
B 9.2V
C
0V
E 9.1V
Q701-B
<B drive>
Q721-C
<G-out>
Q701-C
<B-out>
Q711-C
<R-out>
Q711-B
<R drive>
Q721-B
<G drive>
112Vp-p
5.1Vp-p
110Vp-p
5.6Vp-p
6.0Vp-p
132Vp-p
Q886
B 0.7V
C
0V
E
0V
17.0Vp-p
Hor
iz.