Brother MFC-7050C, Service Manual

Page: 150 / 153

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