Service manual

AL-1651CS CIRCUIT DIAGRAM 13 - 11
R107
300J
21
C125 2200p
12
R99 7.5kJ
21
C126 2200p
12
R100 7.5kJ
21
C132
2200p
12
C136
OPEN
12
C130
OPEN
12
C127 OPEN
12
C137 OPEN
12
C135
2200p
12
R104 2.4kJ
21
R111 2.4kJ
21
R101
1kJ
21
R115
1kJ
21
C134
0.1u
12
R108
620J
21
R109
1.2kJ
21
R110
100J
21
R102
750J
21
C116
820p
12
C117
820p
12
C118
820p
12
C121
0.1u
12
C115
820p
12
C119
0.1u
12
R92
1.5kJ
21
R90
0.68J
1W
21
R94
30kJ
21
R95
30kJ
21
R91
1.5kJ
21
R89
0.68J
1W
21
R98
510J
21
R97
1kJ
21
R96
2kJ
21
R103 1J 2W
21
R93
1kJ
21
IC31
MTD1361/F
CrA
23
CrB
20
VsA
25
RsA
3
VrefA
24
VrefB
19
RsB
12
VsB
18
In /A
26
In A
27
In /B
17
In B
16
Vmm
22
OUT /A
1
OUT A
4
OUT /B
14
OUT B
11
PG
15
PG
28
IC29
L6219DS or AMM56219
OUT 2A
2
SENSE 2
3
COMP 2
4
OUT 2B
5
GND
6
GND
7
I02
8
I12
9
PHASE 2
10
VREF 2
11
RC 2
12
VSS
13
RC 1
14
VREF 1
15
PHASE 1
16
I11
17
GND
18
GND
19
I01
20
OUT 1B
21
COMP 1
22
SENSE 1
23
VS
24
OUT 1A
1
R114 1J 2W
21
C123
0.1u/50V
12
C1
2
0.1u/5
0
CP2
0603FA1.5A
12
PGND
PGND
PGND
PGND
PGND
5V
24VM 5V
5V
24VM
5V
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
24VM
MM_PH_A
OUT_A-
MM_AI0
MM_PH_B
MM_BI0
MM_BI1
MM_AI1
OUT_A+
OUT_B-
MMref0
MMref1
MMref2
SPMT_2
(SPFMT2)
SPMT_0
SPMT_3
SPMT_1
MRPS_1
MRPS_2
MRPS_3
(SPFMT0)
(SPFMT3)
(SPFMT1)
OUT_B+
(10-D2)
(2-A3)
(2-A3)
(2-A3)
(2-A3)
(2-A3)
(2-A3)
(5-C1)
(5-C1)
(5-C1)
(5-C2)
(5-C2)
(5-C2)
(4-D3)
(4-D3)
(4-D3)
(4-D3)
(11-D1)
(11-D1)
(11-E1)
(11-E1)
Scanner Motor Driver
SPF Motor Driver
(10-D2)
(10-D2)
(10-D2)
A B C
A B C
4
3
2
1
MCU PWB (Driver section 3)