Color - Brother FAX1170 Service Manual

1 2
L 3 0
G N D F G
A
6
+ 5 V
P A N E L
R 8
*
5
R 7 4 7 0
1 1 5 B P C L K
3 1 5 B S D O T
R 9 4 7 0
2 1 5 B S D I N
4
B
P 1 1
C 1 4 C 1 5 C 1 3
B 5 B - P H
C 1 0 1
C 1 0 1 C 1 0 1
W H I T E
C 1 6
C C 1 0 4
G N D G N D
R 8 7 1 0 K
3 3 A L I G T
R 5 9 1 0 k
4 2 F D A S N O
R 6 8 1 0 k
4 3 D D A R E C
5 2 C C L B S Y
5 2 D C L R X S
C R 1 3 3 1 0 k
L 5 V
C 7 0 4 3 B
C 5 0 C 3 8
C C 1 0 4
0 0 4 4 D
4 5 D
+ 5 V
G N D
G N D
R 8 6 *
4 2 F D A S T
4 6 E
C 6 8 3 2 F R I B O N
*
3 8 C
4 2 F T L O F 2
3 7 B
D
G N D 3 7 B
1 7 B
3 8 C
+ 5 V E 5 V
3 2 E
3 2 E
3 2 E
3 2 E
3 2 E
G N D E 0 V
3 4 C
7
3 4 C
3 6 C
E
2 3 C
+ 2 6 V
2 3 C
3 2 A
R 9 6
3 7 D
7 5 K
3 4 C , 3 2 A
R 9 5
C 7 9
1 0 K F
3 3 B
C C 1 0 4
E 5 V
3 3 D C P 3 I
E 0 V
R 9 2
7 5 F
E 5 V
R 9 3
1 0 0 F
F
R 9 4 C 7 6 C 7 3
C 7 8 C 7 7
7 5 F
C C 1 0 4 C C 1 0 4 C C 1 0 4 C C 1 0 4
E 0 V
E 0 V
1 2
1 FAX engine (ASIC) which integrates a CPU, digital portion of MODEM and gate array
for managing the I/Os, memories, and drivers.
2 XT1, oscillator for the CPU.
3 XT3, oscillator for the calendar clock.
4 XT2, oscillator for the MODEM.
5 Reset IC which turns on at the powering-on sequence and at any of the reset opera-
tions.
6 Connector for the control panel
7 Recording head drive voltage detector
8 Inverters
9 Connector for the modular PCB
: Connector for the hook switch PCB
A Backup circuit for the calendar clock
3 4
5
+ 5 V
Q 6
R H 5 V A 4 3
R 9 0
1 . 5 K
V C C
O U T
G N D
C 6 5
C C 1 0 4
G N D
C 6 1
C C 3 0 P
G N D
+ 5 V
# 9
T 7 D 6 0
R 7 0
R 1 3 2
1 0 K 2 0 0
1 7 1 6 A D M D
M I O 0 ( P W M ) A D P D M D
1 8 1 4 A A M D
M I O 1 ( P W M ) A A P D M D
R 6 7 2 0 0
1 9 1 2 D M T
M I O 2 ( P W M ) D P D M D T
R 6 6 3 0 0
2 0 1 1 D M K
M I O 3 D P D M C K
2 1 9 R 6 4 3 0 0 A M K
M I O 4 A P D M C K
2 2 8 A M T
M I O 5 A P D M D T
2 3 3 C 3
T A D H M I O 1 1 C 5
2 4 2 C 4
T X S L M I O 1 2 C 4
2 5 1 C 5
H A F H M I O 1 3 C 3
2 0 5 6 C 0
M V D D C 2
5 C 1
C 1
C 3 9
4 C 2
C 0
C C 1 0 4
2 0 8 1 3 A M U T
M V S S A M U T E
2 0 4 7 M U T
M O N M D C K M U T E
T B U S 4 8 A , 5 8 D
1 0 3 2 0 7 # 1 2
L 2 1 0 0
L I G T ( P W M ) M E X T L
4 3
2 0 6
M T X L
8 0
S P O N S E O N ( O D )
R 1 1 7 2 0 0
7 6 1 0 9 D A 0
S E N 2 D A 0
R 1 1 8
7 7 1 1 0 D A 1
F R N T S E N 3 D A 1
2 0 0
7 8 1 1 1 D A 2
S E N 4 D A 2
7 9 1 1 2 R A 2 D A 3
F S E N S E N 5 D A 3
R 6 1
2 0 0
3 0 1 1 3 D A 4
R S E N S E N 6 D A 4 2 2 0
3 1 1 1 5 D A 5
C S E N S E N 7 D A 5
D A 6
3 2 1 1 6
R E A R S E N 8 D A 6
1 1 7 R A 1 D A 7
D A 7
2 0 0
1 1 8 D A 8
D A 8
9 2 1 2 0 D A 9
S T 1 S T 1 D A 9
9 1 D A B U S
S T 2 S T 2
2 6 B , 2 6 E
9 3 1 2 7 D 0
H D C H D C D 0 0
9 4 1 2 8 D 1
D I N D I N D 0 1
9 0 1 2 9 D 2
D O U T D O U T D 0 2
1 3 0 D 3
D 0 3
1 3 1 D 4
D 0 4
1 0 6 1 3 3 D 5
E 1 C S E 1 C S D 0 5
1 0 7 1 3 4 D 6
S M C S P S L ( S M C ) D 0 6
1 0 2 1 3 5 D 7
R D A T R D A T D 0 7
D B U S 2 5 E , 3 6 D
9 5 1 0
M T I 1 C L 2 V D D
9 8 4 3
M T I 0 C L 1 V D D
9 9 9 7
C L B V D D
1 0 0 1 1 4
R B
R B V D D
1 0 1 1 3 2
S E O N D I F V D D
1 0 4 1 4 7
T G T G V D D
1 6 5
V D D
5 2 1 9 0
R D A 6 1 V D D
5 6 2 0 1
V I D C P 1 I V D D
5 5
C P 3 I
5 4 1 5
C P 4 I V S S
5 3 3 8
C P N N V S S
6 0
V S S
5 0 8 1
R D A 6 V S S
5 1 9 6
A V D D V S S C 4 3 C 5 1 C 5 9 C 6 0
5 8 1 0 5
C C 1 0 4 C C 1 0 4 C C 1 0 4 C C 1 0 4
A V D D V S S
4 9 1 1 9
R E F H V S S
4 8 1 4 2
R E F L V S S
4 7 1 5 6
A G N D V S S
5 9 1 6 4
A G N D V S S
2 0 0
V S S
3 4
Main PCB Circuit Diagram 1/5
5
R S T L 1 6 A , 4 7 B , 1 4 B , 5 7 E # 9
T 7 D 6 0
4 4
R S T R T C C O N
R V D D
1 4 3
E X T L R E X T
1 4 1
X T L R X T
R 8 0 1 M
R 1 1 6 1 0 0
7 0
X T 1 2 5 D R A S R A S 0
R 8 2
R 1 1 4 1 0 0
7 5
C S A 1 6 M X
0 2 5 D C A S C A S C R X D
1 2 4
2 7 B R M R D R M R D C K S
1 2 3
C 6 2 R M W E T X D
1 2 2
C C 3 0 P 2 7 B R O M C R O M C R X D
1 6 6
I O R D C T S
1 6 7
I O W E
M M 1
2 1 7 7
1 2 B P C L K M M 2
P C L K
+ 5 B
1 7 6
1 2 B S D O U T S D O U T M M 3
1 7 5
R 8 4
1 2 B S D I N S D I N M M 4
2 2 K
R 8 5 *
6 7
1 4 A R S T L C K 3 2 O N T S T A
6 6
C K 3 2 T S T B
R 8 8 1 0 0
I O R Q
6 8
B A K C L K M R E Q
+ 5 B
7 3
1 4 A R S T L B A E N B C K 1 6
7 4
B A V D D C K 8 M
6 5
G N D B A K S E L R D
7 2
C 7 1
2 5 C B A R M R D B A R M R D W R
C C 1 0 2 B 7 1
C 6 7
2 5 C B A R M W E B A R M W E N M I
C C 1 0 4
I N T
5 7
4 2 F A D L C L N C R ( C O M P ) B S A K
G N D G N D
8 3
4 6 E V O L 1 S O L ( O D ) B S R Q
8 2
4 2 F E A T P W O N W A I T
1 8 7
4 2 B , 3 8 E C M L H C M L R F S H
1 8 8
4 2 E R D P S D P S M 1
1 8 9
4 3 E P L S P L S
1 9 1 1
4 3 A T E L L T E L A 0
1 9 2
1 7 C H O O K H O O K A 1
1 9 3
4 2 F C I C I A 2
1 9 4
4 2 F T L O F T L O F A 3
1 9 5
L 5 V S T D A 4
3 9
8 4 5 E R N G O R I N G A 5
4 0
4 6 E V O L 3 S P O N A 6
1 8 4
4 6 D R N G L E 2 C S A 7
2 0 3
4 2 D O T O C T X D A 8
A 9
A 1 0
7 4 V H C U 0 4 F S 8 9
3 2 F L A T C P O 1 A 1 1
2 1
1 8 5
3 3 C C L M P P O 2 A 1 2
1 8 6
3 3 C C P W M P 0 3 ( O D ) A 1 3
A 1 4
4
R 6 0 4 . 7 K
A 1 5
2 6
5 3 B C L S E L R M 1 M A 1 6
2 7
2 5 B E P C K R M 2 M A 1 7
2 8
X T 2
2 3 F S O L R M 3 M A 1 8
D 5 7 . 6 D 6
2 9
3 8 E P W O N R M 4
O D P I O 0
C 4 2 C 4 1 O D P I O 1
R 7 9 *
1 8 2
C C 5 P C C 5 P
G N D P I O 1 O D P I O 2
R 7 8 *
1 8 3
P I O 2 O D P I O 3
1 0 8
3 4 C S R A M P I O 3 ( S R A M ) O D P I O 4
4 1
2 5 B E P D O P I O 4 ( O D )
C 0 V
1 2 1
2 3 E M T V R P I O 5 F D C L K
6 9
P I O 6 F D O U T
F D I N
F C S 1
R 1 3 1 1 0 K
8 8
L 5 V E I T 1 F C S 2
+ 5 V
P 7 *
S H O R T - 2
+ 5 V
L 4
0
G N D
L 5 V
L 1
0
1 4
# 1 2
C 4 0
7 4 V H C U 0 4 F S C C 1 0 4
5 9 1 1 1 3 7
C 0 V
c 6 3 C 6 6 C 6 9 C 7 2
C C 1 0 4 C C 1 0 4 C C 1 0 4 C C 1 0 4
L X
0
G N D
G N D
5
III – 21
6 7
6 4
3
R S T L 1 4 A
6 1
R V D D
6 2
6 3
R 9 1
X T 3
0
2 0 2 C R X D
C - 0 0 1 R
1 9 9 C K S
T X D
1 9 6
C 7 5 C 7 4
1 9 7 R X D
C C 1 0 P C C 1 2 P
1 9 8 C T S
P B U S
1 7 B
8 4 M M 1
8 5 M M 2
G N D
8 6 M M 3
8 7 M M 4
M B U S 2 3 C
4 5
L 5 V
1 6 B P B U S C R X D
4 6
1 2 5 I O R Q C K S
+ 5 V
R 8 3 1 0 K
1 2 6 M R E Q
T X D
L 5 V
1 4 0 C K 1 6
R X D
1 4 4
R 8 1 2 0 0 R 1 0
C T S
1 4 5 R D 4 . 7 K
1 4 6 W R
1 2 D C S E N
R B U S 3 4 D
1 6 8
C 1 7
1 6 9
*
1 7 0
1 7 1
1 7 2
G N D
1 7 3
1 7 4
1 3 6 A 0
1 3 7 A 1
+ 5 V
1 3 8 A 2
1 3 9 A 3
1 4 8 A 4
R 1 1
L 5
1 4 9 A 5 4 . 7 K
M M Z Y 6 0 1 B
1 5 0 A 6
1 5 C H O O K
1 5 1 A 7
C 1 8
1 5 2 A 8
C C 1 0 1
1 5 3 A 9
1 5 4 A 1 0
1 5 5 A 1 1
G N D
1 5 7
1 5 8
A B U S 2 6 B , 3 4 D
1 5 9
1 6 0
1 6 1
1 6 2
1 6 3
G N D
C L R S T
1 7 8
1 7 9 C L C I
1 8 0 C L T X S
1 8 1 C L C K
+ 5 V + 5 B
C L B U S 5 1 C
4 2
V O L 2 4 6 E
3 3
A
3 4
D 1
R 1 2 5
3 5 *
0
3 6
C T S E L 5 3 A , 5 3 B
3 7
R V D D
R 1 2 7
C 1 0 8
* C C 1 0 4
G N D
C 6
*
G N D
6 7
8
A
P C I
+ 5 V
3
B
1
9
6
5
4
2
8
7
G N D
P 1 5
I M S A - 9 1 1 0 S - 0 8 L
C
H O O K
:
1
2
G N D
P 1 4
B 2 B - P H
W H I T E
D
E
F
8