Brother FAX-921 - Manual (Page 183)

+ 5 V
M 0 V
B A 1 0 3 5 8 F
# 1 8
8
4
# 1 8
B A 1 0 3 5 8 F
T X O U T
R X I N B
V B I A S
3
1 6
2
H R E F
C 1 0
1 6 V 1 0
C 3 0
C C 1 0 4
R 2 8
0
C 3 1
*
1 5
R X I N A
A P D M D T
D P D M C K
D P D M D T
A P D M C K
5
6
7
9
1 0
1 1
1 2
1 3
# 1 7
T C 3 5 1 3 3 F
C 3
C 4
C 5
M U T E
T B U S 1 4 D
V D D
V S S
V S S
- P D
8
1
4
1 4
M O V
R S T L 1 4 A
A M U T
D M K
A D M D
A M K
A A M D
C 0
C 1
C 2
-
+
C 3 2 6 8 1 B
C 2 9
C C 1 0 4
+ 5 V
C 2 3
C C 1 0 4
-
+
# 1 8
B A 1 0 3 5 8 F
R 2 1 7 5 K
C 2 4 C C 2 2 1
R 1 7
5 6 K
R 2 0
4 . 7 K
M 0 V
R 1 8 5 6 K
H R E F
H R E F
7
8
C 3 4
C C 2 7 3 B
R 3 0
4 . 7 K
M O V
R 2 7
4 . 7 K
M O V
M 0 V
C 1 8
C C 1 0 4
C 2 7
C C 2 2 1
R 2 5
1 0 0 K
P 1 3 2 / 2
1 7 B P B U S
P A N E L
7
6
5
3
2
1
+ 5 V
P 7
B 8 B - P H
W H I T E
2
5
P C I
4
8
7
1
6
3
G N D
4 4 D H F R L
C K S
L 8 L 1 0 2 B
C R X D
R X D
T X D
C T S
R 2 9 2 0 0 K
+ 5 V
R 3 6
2 . 2 K
C 1 9
C C 1 0 2 B
H R E F
L 3 L 1 0 2 B
L 6 L 1 0 2 B
L 4 L 1 0 2 B
L 5 L 1 0 2 B
L 7 L 1 0 2 B
C X 1
C C 1 0 4
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 PCB 5/6
(FAX870MC/MFC970MC/FAX-930/
FAX-931)