Brother FAX-921 - Manual (Page 179)

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