– 27 –
– 28 –
A
B
C
D
E
F
G
H
I
1
2
3
4
5
6
7
– B BOARD –
B
CHROMA,
LCD INTERFACE
Pin Volt
Pin Volt
Pin Volt
IC301
1
3.0
2
3.1
3
0.6
4
-
5
3.5
6
2.5
7
-
8
-
9
2.8
10
3.0
11
2.9
12
3.1
13 GND
14
0.3
15
-
16
-
17
1.5
18
3.7
19
1.6
20
2.0
21
3.4
22
-
23
2.0
24
4.2
IC401
1
1.3
2
0
3
0.8
4
0.8
5
2.7
6
2.7
7
2.8
8
2.8
9
3.3
10
1.9
11
3.9
12
3.9
13
0
14
3.9
15
1.7
16
1.7
17
1.7
18
1.7
19
1.7
20
2.0
21
2.0
22 GND
23
3.4
24
-
25
3.8
26
3.3
27
0.9
28
0.9
29
0.9
30
0.8
31
0.3
32
3.8
33 GND
34
1.8
35
1.1
36
0
37
0.3
38
3.6
39 GND
40
0
41
2.1
42
0
43
3.5
44 GND
B BOARD IC VOLTAGE LIST
All voltage are in V.
- : Not used
B
C
E
Q302
0.3
3.5
GND
Q303
3.6
1.8
4.1
Q402
3.9
4.4
3.2
Q403
2.1
0
GND
Q408
0
3.8
GND
B BOARD TRANSISTOR
VOLTAGE LIST
1
2
3
4
5
6
Q406 GND -0.7
6.5
12.4 13.3
6.5
Q407
1.8
0
6.5
1.8
1.8
13.3
All voltage are in V.
- : Not used
2.0Vp-p (4.5MHz)
• B BOARD WAVEFORMS
1
1.1Vp-p (4.43MHz)
2
1.0Vp-p (H)
3
0.7Vp-p (H)
4
4.1Vp-p (H)
5
1.4Vp-p (H)
6
1.4Vp-p (H)
7
1.4Vp-p (H)
8
DIODE
*
D301
B-2
3
D302
B-2
3
D303
F-2
3
D401
C-3
3
D403
F-4
3
D404
F-4
3
D405
B-3
3
IC
IC301
C-3
IC401
C-4
TRANSISTOR
*
Q302
C-3
2
Q303
B-2
2
Q402
B-3
2
Q403
C-3
2
Q406
C-5
@º
Q407
B-5
@º
Q408
C-3
2
VARIABLE
RESISTOR
RV301
B-2
RV402
C-4
B BOARD
< Conductor Side >
< Component Side >
NOTE:
•
: Pattern from the side which enables seeing.
•
: Pattern of the rear side.
