Brother MFC 1870MC, Service Manual, Page: 169 / 217

+ 2 5 V
+ 5 V
R B 1 2 E
L A T C 1 5 C
H R L Y 3 6 E
C P 3 I 1 2 F
H D C 1 2 D
G N D
+ 5 V
C I S
P 1 2
B 7 B - P H
1
2
9
4
3
S T 1 1 2 D
R I B O N 1 2 D
T M
1
4
1 0
P 7
B 1 1 B - P H
R 1 6
3 3 K F
R 1 5
1 0 0 K F
R 1 8
1 0 K
T G 1 2 E
+ 5 V
G N D
R 5 V
7 V I D 1 2 E
2 S C 3 0 5 2
R 0 V
K R C 1 0 7 S
R 0 V
2 S D 1 8 5 8
R 1
1 W /
3 0
C P W M 1 5 C
R 4 5
1 0 K
R 4 2
2 . 2 K
R 0 V
R 0 V
R 5 V
R 4 4
1 0 K
R 5 V
L I G T 1 1 C
R 5 V
R 0 V 6
5
C 5 3
C C 1 0 4
G N D
C 2 4
*
C 2 3
*
1 1
6
C 2 2
*
S T 2 1 2 D
D O U T 1 2 E
D I N 1 2 E
8
C 2 6
*
R 1 7 1 0 0
R 1 9 2 0 0
C 8 0
C C 1 0 2 B
C 2 5
*
C 2 0
*
7
2
3
5
G N D
R 0 V
R 1 4
1 0 K F
2 S K 1 3 9 9
2 S C 3 0 5 2
C 4 1 6 V / 1 0 ( 7 m m )
R 8 7 4 7 0
R 8 6 2 7 0
R 5 V
C L M P 1 5 C
R 4 3 1 K
R 4 1 2 2 K
C 5 0
C C 1 0 4
R 0 V
Q 1 3
Q 1
Q 7
Q 5
Q 6
3 3 F H R L Y
+ 5 V
F R N T 1 2 D
P W O N 1 5 D
C M L H 1 5 B
P H 1
S G - 1 0 5 F 3 0 8
+ 2 5 V
R E A R 1 2 D
P H 2
S G - 1 0 5 F 3 0 8
# 3
U M G 5 N
1
3
6
4
2
R 1 1
1 0 0 K
R 5
1 0 0 K
G N D
P 8
B 5 B - P H
B L A C K
5
S E N S O R
3
1
2
G N D
1 2 D F S E N
1 2 D R S E N
4 2 E C M L L
R 4
1 0 0 K
+ 5 V
G N D
C 1 1
C C 1 0 2 B
C 8 3
*
R 1 3
1 0 0 K
+ 5 V
G N D
C 2 1
*
4
1 2 E S E O N
G N D
Q 3
K R C 1 0 7 S
C 1 0
C C 1 0 2 B
S
D
1 2 3 4 5 6 7 8
2 1 3 4 5 6 7 8
A
B
C
D
E
F
A
B
C
D
E
F
A
MAIN 3/5
(FAX1170/1270/1010/1020/MFC1770)