Brother FAX-931 Fax Machine User Manual


 
+ 25 V
+ 5V
RB 1 5 C
L AT C 1 5 D
HRL Y 3 4 E
CP3 I 1 2 F
HDC 15 C
G ND
+ 5V
CI S
P5
B7 B- PH
WH I TE
1
2
8
4
3
ST 1 15 C
TM
3
1 0
P1 1
B1 0 B- P H
R7 7
3 3 K F
R7 6
1 0 0KF
TG 1 5C
+ 5V
G ND
R5 V
7 V I D 1 2 E
Q 6
2 SC3 9 28
G ND
Q 9
KRC1 0 7S
R0 V
Q 1
2 SD1 8 58
R3
1 W
3 0
CPWM 1 5 C
R6 5
2 . 2K
R0 V
R5 V
R6 7
1 0 K
R5 V
L I G T 1 5 C
R5 V
R0 V6
5
C6 9
CC1 0 4
C5 9
CC1 0 1
9
5
ST 2 15 C
DO UT 15 C
DI N 1 5C
7
R6 9 1 00
R6 8 2 00
C6 1
CC1 0 1
C6 0
*
C6 2
CC1 0 1
6
4
2
1
G ND
R0 V
R7 5
1 0 K F
Q 8
2 SK1 3 9 9
Q 7
2 SC3 9 28
C4 1 6 V / 1 0
R7 3 4 70
R7 4 2 70
R5 V
CL M P 1 5 C
R6 6 2 2K
C5 7
CC1 0 4
R0 V
3 2 F HRL Y
+ 5V
PWO N 1 5 B
CM L H 12 D
SW1
SPPB5 1
+ 25 V
PI 2
RPI - 4 4 1
# 4
UM G 5 N
1
3
6
4
2
R8 3
1 0 0K
G ND
P1
B4 B- PH
SENSOR
1
3
2
G ND
1 5 B FSEN
1 2 E H OO K
4 2 E C M L L
R2 6
4 . 7K
+ 5V
G ND
C7 2
CC1 0 1
C2 0
*
G ND
4
1 5 B R SEN
1 5 B R EAR
G ND
+ 5V
1 5 B R I BN
G ND
G ND
C7 3
CC1 0 1
PI 1
RPI - 4 4 1
G ND
P8
B2 B- PH
RED
1
HO OK
2
+ 5V
1 5 B C SEN
G ND
C7 7
*
R8 4
1 0 0K
R2 5
1 / 10
1 6 0
R7 8
1 0 0K
R8 5
4 . 7K
+ 5V
R2 4
1 0 0K
+ 5V
C5 8
CC1 0 1
G ND
D
S
G
L 1 3 L 1 0 2B
R7 2
1 2 3 4 5 6 7 8
21 3 4 5 6 7 8
A
B
C
D
E
F
A
B
C
D
E
F
A
Main PCB 3/5
(FAX750/FAX770/FAX-910/
FAX-920/FAX-921/MFC-925)