Brother IntelliFax-3550 Service Manual page 164

Facsimile equipment
Table of Contents

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1
R I N G O
7 4 C
T E L
7 4 A
M U T E
7 3 C
A
O G M
7 2 B
D A R E C
7 2 C
A D L C
7 1 C
D A S T
7 2 C
D A S E N D
7 2 D
P O L
7 2 D
C 1
7 2 A
T L O F
7 2 A
E A T
7 1 D
D P S
7 1 D
P L S
7 1 A
C M L H
7 2 A , 7 3 B
M I N T
4 4 C
R 1 1 6
1 0
U C A S
2 3 B , 2 4 A , 2 5 A
E E C K
1 2 4
2 3 D
E S D
1 3 3
2 3 D
R 1 2 0
1 0
R A M R D
2 4 A , 2 4 C , 2 5 A
R 1 2 1
1 0
C A S
2 4 A , 2 4 C , 2 5 A
R A S 3
2 5 A
B
R A S 2
R A S 2
2 5 A
R A S 1
2 4 B , 2 5 A
R A S 0
2 4 A
1 6 2
R O M C E
2 1 B
R 1 1 4
1 0
R M W R
2 4 A , 2 4 B , 2 5 A
N C
R 5 0
0
X T 2
C - 0 0 1 R
C 5 6
C 5 5
C C 1 0 P
C C 1 0 P
+ 5 V
S 0 V
1 6 A , 2 6 A
R 2 5
Q 8
3
3 4 C , 6 6 D
1 . 5 K
R 1 9 4
1 K
1
R S
1 3 0
C 2 5
P S T 5 9 3
C C 1 0 4
C
C 2 6
R 3 8
C C 1 0 2
2 2 0
2
4
R 1 9 3
1 M
S 0 V
S 0 V
X T 1
C 3 2
C 3 3
1 5 p
1 5 p
S 0 V
D
1
2
A S I C M F C 2
7 6
9 3
R I N G
S E N 5
7 4
7 5
S P O N
T E L
S P O N
7 6 C
9 1
1 2 2
R N G
S E N 3
P 7 1
7 5 C
9 0
S E N 2
6 8
2 0 8
P W M 3
D 1 5
8 2
2 0 7
A N 0
D 1 4
6 7
2 0 6
P W M 2
D 1 3
6 6
2 0 5
P W M 1
D 1 2
8 8
2 0 4
S E N 0
D 1 1
R 5 4
7 7
2 0 3
C L K 2 4
C 1
D 1 0
3 5 C
8 9
2 0 2
2 0 0
S E N 1
D 9
9 5
1 9 9
S E N 7
D 8
7 2
D P S
7 3
1 9 8
P L S
D 7
7 1
1 9 7
C M L
D 6
4 0
1 9 6
M I N T
D 5
1 9 5
D 4
6
1 9 4
U C A S
D 3
1 9 3
P 7 3
D 2
1 9 2
E E D A T
D 1
D B U S
7
1 9 1
R A M R D
D 0
R 1 9
1 0
R D
5
1 6 7
2 1 B , 2 1 D , 2 6 A
# 1
L C A S
R D
3 5 C , 4 4 B
4
1 6 3
R A S 3
H W R
R 1 8
1 0
3
L W R
1 6 6
R A S 2
W R
2 6 A , 3 5 C , 4 4 B
2
1 1 1
R O M 3
R A S 1
S E N 8
2 1 D
1
1 6 8
+ 5 V
R A S 0
A 2 0
R 2 9
2 2 K
1 6 9
1
8
R O M 1
A 1 9
8
1 7 0
2
7
R A M W R
A 1 8
9
1 7 1
4
5
R A 1 0
R A M U W E
A 1 7
1 7
1 7 2
3
6
6 8 x 4
R X T
A 1 6
1 6
1 7 3
4
4
5
5
5
R E X T
A 1 5
1 7 4
3
3
6
6
6
A 1 4
1 7 5
2
2
7
7
7
R A 1 1
A 1 3
6 8 X 4
1 7 6
1
1
8
8
8
A 1 2
4
4
1 7 7
5
5
D A 1 1
1 7 8
3
3
6
6
D A 1 0
1 7 9
2
2
7
7
R A 1
D A 9
1 8 1
1
1
8
8
6 8 x 4
D A 8
1 8 2
4
4
4
5
5
5
D A 7
3
3
3
6
6
6
1 8 3
D A 6
1 8 4
2
2
2
R A 2
7
7
7
D A 5
1 8 5
6 8 x 4
1
1
1
8
8
8
R S T
D A 4
1 8 6
4
4
4
5
5
5
D A 3
6
6
6
1 8 7
3
3
3
1 1 8
D A 2
E X T L
R A 3
1 8 8
2
2
2
7
7
7
D A 1
A B U S
1 8 9
6 8 x 4
1
1
1
8
8
8
D A 0
1 1 7
E X T L
2
3
4
H O O K
9 4
6 5
F A N
5 5 C
S E N 6
P A 3
5 1 C
M C E
3 9
2 9
P M 1
4 4 B
M C E
P M 1
5 3 B
M R S T
4 1
3 0
P M 2
4 5 B
M R S T
P M 2
5 3 B
P C L K
4 4
3 1
P M 3
3 3 D
P C L K
P M 3
5 3 B
S D O U T
4 6
3 2
P M 4
3 3 D
S D O U T
P M 4
5 3 B
S D I N
4 5
3 3
F S E N
3 3 D
S D I N
C M P P A
3 3 C
S M P C
5 6
3 4
R S E N
C M P P B
3 3 C
3 5 B
S M P C
C M P R A
3 5
3 7
S O L
5 5 B
S O L
C M P R A
5 4 C
C M P R B
3 6
S C N
1 0 1
S C C K
5 5 B
C M P R B
5 1 A
R 2 0 1
C L K
4 2
1 0 2
D R I V
C L K 2 4
D R I V E
5 1 A
C S I P
L L 2 4 1
5 5
9 8
S C D T
V D O
3 4 C
C S I P
5 1 A
P D
4 7
9 9
L D O N
3 6 C
I P D 0
L D O N
5 1 B
4 8
1 0 3
T E N H
I P D 1
H V T P
5 1 B
4 9
1 0 4
T E N L
H V T N
I P D 2
5 1 B
5 0
1 0 5
T A I D
I P D 3
H V C H
5 1 B
5 1
1 0 6
G E N Z
I P D 4
H V G Z
5 1 C
5 2
1 0 7
V C L N
I P D 5
H V C L
5 1 C
5 3
1 0 9
E L
I P D 6
E R A S E
5 1 C
5 4
1 0 8
H T O
I P D 7
H T O
5 3 A
R B
5 8
3 2 A
R B
# 1
S H
5 7
2 4
X V D O
3 2 B
S H
E X V D
2 6 A
1 4 1
C L 2
5 9
C L 2
C B S O N
3 2 B
C L 1
6 2
1 6 0
H B U Y
3 2 B
C L 1
H B U S Y
6 4 B
T G
6 3
1 5 9
S E L I N
3 2 B , 3 5 C
S E L I N
T R G
6 4 A
P R M I N T
L E D
6 4
1 5 8
P R M I N T
3 2 A
P A 2
6 4 A
2 0 1
F L T
1 5 7
V D D
6 4 A
F L T
1 9 0
S L C T
1 5 6
V D D
S L C T
6 4 A
1 6 5
1 5 5
P P E
V D D
P P E
6 4 A
1 4 7
1 5 3
B U S Y
V D D
B U S Y
6 4 A
1 1 4
1 5 2
A C K
V D D
A C K
6 4 A
9 7
S T B
1 6 1
S T B
V D D
6 4 B
6 1
1 4 3
V D D
D C 7
4 3
1 4 4
V D D
D C 6
C C 1 0 4 x 5
2 1
1 4 5
V D D
D C 5
1 4 6
D C 4
1 4 8
D C 3
1 5
1 4 9
G N D
D C 2
3 8
1 5 0
G N D
D C 1
6 0
1 5 1
D C B U S
G N D
D C 0
6 4 B
9 6
G N D
1 1 9
1 3 5
P 8 4
G N D
R 2 3
1 . 5 K
1 4 2
1 3 8
C T S
G N D
1 5 4
R 2 2
B L M 1 1 A 2 0
G N D
1 3 7
R T S
1 6 4
R 2 1
1 . 5 K
G N D
R 2 1 2
1 3 9
1 8 0
R X D
G N D
R 2 0
B L M 1 1 A 2 0
1 4 0
2 0 0
T X D
G N D
R 2 4
1 . 5 K
R 2 1 1
1 3 6
P 8 3
S 0 V
*
R 1 9 6
2 2 K
R 2 7
2 2 K
+ 5 V
+ 5 V
3
4
5
L O C K
1 1 3
5 1 A
P B 5
R V D D
R V D D
B D
1 0 0
5 1 B
B D
H A I S I
1 3 1
E R O M 2
5 1 C
R E S I
1 2 1
P 7 0
5 1 D
T C S
1 2 5
P 7 4
5 1 D
R T C C O N
C O V E R
1 2 6
5 1 D
P 7 5
B A V D D
T N O R
1 2 7
5 1 D
P 7 6
8 3
S O T H 2
A N 1
5 1 D
H E T H
8 5
A N 3
5 1 D
8 4
A N 2
C K 3 2
1 1 0
L A S P
R M 1
2 5
5 5 B
R M 1
R M 2
2 6
5 5 B
R M 2
R M 3
2 7
R M 3
B A C L K
5 5 B
R M 4
2 8
R M 4
B A E N B
5 5 B
M T I 0
1 1 5
P A 0
5 5 C
M T I 1
7 8
5 5 C
P A 1
X S E N
1 3 4
2 6 B
P 8 5
+ 5 V
E X C S
R 3 2
2 2 K
2 2
E X C S 1
2 6 A
+ 5 V
# 1
E X I N T
2 3
R 3 3
2 2 K
2 6 A
E I N T 1
C 3 0
+ 5 V
C K 3 2 0 N
C C 1 0 1
R 1 9 8
2 2 K
S 0 V
S A 1 2
1 2 3
2 3 D
P 7 2
R 2 6
2 2 K
1 3 2
E E C K
+ 5 V
7 0
S 0 V
A M 8 1 6
L A S P
6 9
5 1 B
P W M 4
B K S L
V R C O N
1 2 8
P 7 7
5 6 C
1 2 0
P B 6
1 2 9
C L K
9 2
M T D I 1
5 3 C
S E N 4
1 1 2
D S
S A M P
3 6 C
S E N 9
A V D D
+ 5 V
+ 5 V
A G N D
*
R 1 9 5
B L M 1 1 A 2 0
2 2 K
R 2 1 3
8
C T S
2
T S T 1
R T S
3
T S T 2
P 1
1 . 5 K
R X
T S T 3
4
T X
T S T 4
6
M / L S E N
1 . 5 K
1
5
7
2 9 0 A - 8 8
8 P M O D U
R 1 8 6
S 0 V
B L M 1 1 A 2 0
S 0 V
A
5
6
1 8
1 8
R V D D
R V D D
6 6 B
A
C 6 2
C 6 2
C C 1 0 4
S 0 V
R S
1 9
1 1 C
1 0
+ 5 V
C 6 4
C C 1 0 4
S 0 V
1 3
R 5 3
1 0 0
1 1
1 2
C 6 1
C C 1 0 2
S 0 V
B
1 4
2 0
S 0 V
M 5 V
8 1
C 2 8
C C 1 0 4
8 0
M 0 V
1 1 6
7 9
C
8 6
8 7
S 0 V
S 0 V
S 0 V
S 0 V
R 5
R 1 0 8
4 5 5 0
3 5 5 0
0
0
F G
F G
D
MAIN 1/7
MFC4450
6

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