Brother MFC-7050C, Service Manual

Page: 144 / 153

I N
S 0 V
# 1 0
R H 5 R 4 7
O U T
G N D
1 6 C
+ 3 . 3 B
S 0 V
C 1 1
1 0 V / 1 0 0
L 6
B L M 1 1 A 2 0
C C 1 0 1 x 5
R A 1 5
1 K x 4
S 0 V
S 0 V
1
A S T B
2
3
4
9
1 0
8
5
6
R 1 3 9 0
6 3
8 1
7
8
1
7
C
1
4
4
5
4
6
3
7
2
8
1
5
4
6
3
7
2
8
1
5
4
6
3
7
2
5 4
1
1 0
9
8
6
5
4
3
2
7
R A 1 1
3 . 3 K x 4
R A 1 3
3 . 3 K x 4
R 1 3 8 0
C 1 6 7
C C 1 0 2
I N
G N D
O U T
2
1
# 9
R H 5 R 3 3
S 0 V
S O V
C 1 7 6
C C 1 0 4
W R P R O T N
R 1 9 4
2 7 K
Q 1
2 S A 1 3 6 4
Q 3
2 S A 1 3 6 4
+ 3 . 3 V
R 1 9 5
4 . 3 K
( 2 1 2 5 )
D 5
1 S S 1 2 0
P 6
B P
S 0 V
B 2 B - P H
( B L A C K )
R 1 9 6
6 . 8 K
( 2 1 2 5 )
S 0 V
D 7
1 S S 1 2 0
+ 3 0 V
Q 2 0
D T C 1 4 4 E K A
R 1 9 2
1 K
R 1 9 3
N C
L 7
B L M 1 1 A 2 0
+ 5 V
)
(
+ 5 V
+ 5 B
S 0 V
C 1 0
1 0 V / 1 0 0
4
S O V
C 1 6 8
C C 1 0 4
R 1 8 5
2 7 K
Q 2
2 S A 1 3 6 4
+ 5 V
Q 1 9
D T C 1 4 4 E K A
Q 4
2 S A 1 3 6 4
R 2 9 8
3 . 3 K
R 1 8 4
1 K
+ 3 . 3 V
C 1 7 5
C C 1 0 1
S 0 V
S 0 V
R 1 8 6
2 . 7 K
2
5
C 1 6 4
C C 1 0 4
C 1 6 5
C C 1 0 4
1
3
# 1 5
S - 8 0 9 4 6
2
R A 1 2
4 7 x 4
C
1
2
3
C
1
4
2
C
1
4
5
C
1
2
7
C
1
2
6
C
1
2
5
C
1
2
4
P 1 5
C E N 1
B 1 1 B - P H
+ 5 V
S 0 V
A C D 0 8 1
A C D 1 7 2
6 3 A C D 6
A C D 4 8 1
A C D 5 7 2
A C D 2 6 3
A C D 3 5 4
A C D B U S
1 1
R A 1 4
1 0 0 x 4
R A 1 0
4 7 x 4
C
1
5
7
C
1
5
4
C
1
5
5
C
1
5
6
C
1
5
8
C
1
5
9
C
1
6
0
C
1
6
1
C C 1 0 1 x 8
4 5 A C D 7
S 0 V
P 1 6
C E N 2
B 1 0 B - P H
A A C K
A B U S Y
A P E
A S L C T
A F L T
A I N I
A S I N
A A F
C
1
4
3
C C 4 7 1 x 4
+ 5 V R S
( )
R 2 9 7
N C
R 3 0 3
0
R S
R 2 9 6
0
R S
D 6
1 S S 1 2 0
D 2 0
M A 7 0 0
R 1 8 1
N C
(
)
+ 5 V
R E S E T N
1 4 C
1 1 A
6 6 B
1 4 C
1 5 C
1 4 C
1 4 C
1 4 C
1 4 C
1 4 C
1 1 A
1 5 C
1 1 C
1 4 C
6 6 C
+ 3 . 3 V
A
B
1 2 3
C
D
1 2 3 5 6
A
B
C
D
6
4
4 5
A Main PCB 6/10