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Brother 8250P - FAX B/W Laser Printer Service Manual page 184

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1
A
C 8 1
R 9 1
1 2 0 K
R 9 7
C 8 4
C C 1 0 4
3 9 K
9
R I N
-
7 4 B
A R E F
+
4 3 C
8
1 0
R 9 6
2 7 K
# 1 0
K I 3 2 4
B
C
D
1
2
3
S 0 V
+ 5 V
R 9 0
R 8 9
0
B L M 1 1 A 2 0
M 0 V
M 5 V
P R I N G
7 4 C
+ 5 V
R 9 2
Z D 2
4 . 7 K
H Z S 5 C
* R 6 7
* R 6 9
M 0 V
2 2 K
M 0 V
+ 5 V
R 5 2
* R 7 0
* R 6 8
0
R 5 0
R 5 1
2 2 K x 3
S O V
H S P L Y ( 7 3 C )
M S L ( 7 4 C )
T A D H ( 7 4 B )
M 5 V
C 6
1 6 V
1 0 0
M O V
C 5 8
C C 1 0 4 B
R 7 1
1 K
M 0 V
4 1 B
4 5 C
2
3
4
+ 5 V
1 6 V / 1 0
B G 3 0 8 0 / 2
1 0
1 1
D V S S
D V D D
1 9
1 8
D V S S
D V D D
2 5
2 4
D V S S
D V D D
3 2
3 1
D V S S
D V D D
4 1
4 0
D V S S
D V D D
4 9
4 8
D V S S
D V D D
5 8
5 7
D V S S
D V D D
6 5
6 4
D V S S
D V D D
7 0
6 9
D V S S
D V D D
7 5
7 4
D V S S
D V D D
A B U S
2 1
3 9
A 1
F S I N
A 0
2 0
3 8
A 2
F S O U T
A 1
3 7
A 3
A 2
6 6
3 6
A 4
T E S T 1
A 3
D R B U S
1 6
T E S T 2
1 4
5 1
D 0 R
T E S T 3
D 0
1 7
5 0
D 1 R
T E S T 4
D 1
1 5
4 7
D 2 R
T E S T 5
D 2
4 6
D 3 R
D 3
1 3
4 5
D 4 R
M O N 1
D 4
1 2
4 4
D 5 R
M O N 2
D 5
9
4 3
D 6 R
M O N 3
D 6
8
4 2
D 7 R
M O N 4
D 7
7
2 2
M O N 5
C L K
6
M O N 6
7 6
2 3
H I P 0
- R S T
7 3
3 5
M C E
H I P 1
- C E
1 3 A
3 4
R D
7 2
H I P 2
- R D
1 3 B
# 9
3 3
L W R
- W R
1 3 B
7 1
H O P 0
+ 5 V
6 7
2 9
H O P 2
M P S E L
M I N T
2 8
6 8
- I N T
1 2 B
H O P 1
2 7
- D R E Q
2 6
- D A C K
5
M 0 V
N C
3 0
5 6
N C
D T C K
5 9
R X D
4
6 0
A V D D
T X D
7 7
6 1
A V D D
- D C D
C 7 9
6 2
- C T S
C C 1 0 4
1
6 3
A G N D
- R T S
8 0
A G N D
7 8
5 2
R X I N A
E Y E C K O
7 9
5 3
R X I N B
E Y E C K I
2
5 4
V B I A S
E Y E D A T
3
5 5
T X O U T
E Y E S Y C
A
C 7 1
R 1 0 1
C C 1 0 4
*
*
R 8 5
A
A R E F
C 8 7
C C 1 0 2 B
4
5
C C 1 0 4 x 4
S 0 V
7 W U 0 4 F
L 5
7
1
2
6
2 7 0
# 1 3
# 1 3
R 4 8
5 . 6 K
R 4 7
1 5 0
4 1 . 4 7 2 M H Z
X T 3
C 4 5
C 4 4
C C 5 P
C C 5 P
5
3
C 0 V
# 1 3
M R S T
L 4
1 3 A
0
S 0 V
A
*
R 1 0 2
C 8 8
C C 2 2 1 C H
6
-
T X O
7 4 B
+
7
# 1 0
5
K I 3 2 4
R 1 0 3
4 . 7 K
A R E F
4 3 C
M 0 V
A
Main PCB 4/8
5
6
A
+ 5 V
8
# 1 3
C 4 6
7 W U 0 4 F
C C 1 0 4
4
B
C 0 V
C
D
6
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