Sharp FO-4650, Service Manual

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FO-4650U
1 2 6
4
3
5
BD
E
F
G
I
H
C
A
BD
E
F
G
I
H
C
A
1 2
6
4 3 5
– + – +
26 24 25 23 22 27 17 18 21
2 3 7 6 13 12
19 20 16 28 15
5
10
9 8 1 14 4 11
K A
K A
K A
K A
TMA
/TMA
TMB
/TMB
F101
ICP-S1.8
1 2 3 4 5 6 7 8 9 10 11 12
8
1
3 2
4
C107
0.1
+5V
IC2A
NJM2904M
8
7
5 6
4 +5V
IC2B
NJM2904M
TMVR
CRNT
R142
22.0K(F)
R144
33.0K(F)
Q102
DTC114EK
BC
E
R111
N.M.
R145
39.0K(F)
2
1
F100
ICP-S1.0
VSTP
STPON
R147
4.7K
B
C
E
Q1
2SD1164
K A
LEDON
R136
1K
B
C
E
Q100
2SD1664
CNPW
ENABLE1
DG
DG
DG
DG
DG
+5V
R143
56.0K(F)
C128 470P
R148
56.0K(F)
C131 470P
C127
0.1
TMVR TXPA TXA1 TXA0 TMVR TXPB TXB0 TXB1
MG
MG
MG
C130 330P
R146
1K
R1
0.47(1W)
C132 330P
R149
1K
R2
0.47(1W)
C108
0.1/50
C2
100/50
R114
1M
12
+24V
D1
SR104
D2
SR104
D3
SR104
D4
SR104
IC7
LB1845
MOTOR DRIVER
Vref1 PHASE1 I11 I01 RC1 Vref2 ENABLE2 PHASE2 I01 I12 RC2 VCC GND NC NC
SENSE1
E1
OUT1A OUT1B
SENSE2
E2
OUT2A OUT2B
VBB
D(DI)GND
VBB
D(DI)GND
DG
DG
DG
+5V
DG
DG
MG
/LEDON
MG
+24V
D101
1SS355
/STPON
+24V
DG
FG
DG
MG
R100 R330 R117
N.M.
C129 C248 C110
N.M.
R3
10(1/4W)
DG
DG
MG
+24VA
C280
0.1/50
C12
47/35
C276
N.M.
+24V
C11
33/16
C277
0.1
DG
+5V
C10
33/16
C275
0.1
B12B-PH-KS
+24V SUB
MG MG MG
+24V MAIN +24V MAIN
+5V SUB
DG DG DG
+5V MAIN +5V MAIN
(11-1D)
(7-4H) (7-4H) (7-4H)
(11-1D)
(7-4H) (7-4H) (7-4H)
(14-6A) (14-6A) (14-6A) (14-6A)
(14-4B)
(7-3H)
(14-4B)
(11-5B)(11-4B)
(7-3H)
(14-3B)
(7-4H)
Drive & Power supply block
1
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