Sharp AR-168S Service Manual page 148

A
MCU PWB (Driver section 3)
4
3
2
R107 R108
300J 620J
(5-C2) MRPS_1
(5-C2) MRPS_2
(5-C2) MRPS_3
1
A
Scanner Motor Driver
(10-D2) OUT_A-
(10-D2) OUT_A+
(10-D2) OUT_B+
(10-D2) OUT_B-
R90
0.68J
1W
C116
PGND 820p
5V
R93
1kJ
R96 R97 R98 C119
2kJ 1kJ 510J 0.1u
(5-C1) MMref0
(5-C1) MMref1
(5-C1) MMref2
5V
R102
750J
R109 R110
1.2kJ 100J C134
0.1u
PGND
PGND
AR-168S/168D CIRCUIT DIAGRAM 14 - 11
B
IC29
R92
1
1.5kJ
OUT 1A VS
2
OUT 2A SENSE 1
3
SENSE 2 COMP 1
4
COMP 2 OUT 1B
5
OUT 2B I01
6
GND GND
7
GND GND
8
(2-A3) MM_BI0 I02 I11
9
(2-A3) MM_BI1 I12 PHASE 1
10
(2-A3) MM_PH_B PHASE 2 VREF 1
11
VREF 2 RC 1
12
RC 2 VSS
L6219DS or AMM56219
C117 R94
820p 30kJ
5V
PGND
PGND
C121
0.1u
PGND
PGND
SPF Motor Driver
C125 2200p
R99 7.5kJ
R100 7.5kJ
C126 2200p
C127 OPEN PGND
R101 C130
1kJ
OPEN
R103 1J 2W
C132
R104 2.4kJ 2200p
R111 2.4kJ C135
2200p
R114 1J 2W
R115 C136
1kJ
OPEN
C137 OPEN
PGND
(4-D3) (SPFMT2)
(4-D3) (SPFMT0)
(4-D3) (SPFMT3)
(4-D3) (SPFMT1)
B
24VM 5V
R89
0.68J
R91 1W
1.5kJ
24
23
22
21
20
C115
MM_AI0 (2-A3)
19
820p
18
17
MM_AI1 (2-A3)
16
MM_PH_A (2-A3)
15
14
13
R95 C118
30kJ 820p
PGND
PGND
24VM
24VM
IC31
23 22
Vmm
CrA
20
CrB
25 1
OUT /A
VsA
3 4
OUT A
RsA
24 14
OUT /B
VrefA
19 11
OUT B
VrefB
12
RsB
18
VsB
26
In /A
27
In A
17 15
PG
In /B
16 28
PG
In B
MTD1361/F
PGND
C
PGND
CP2
0603FA1.5A
C123
0.1u/50V 0.
SPMT_2 (11-E
SPMT_0 (11-D
SPMT_3 (11-D
SPMT_1 (11-E
C