AR-285 (serv.man26). AR280 285 335 Circuit RADF — Sharp Copying Equipment Service Manual (repair manual)

Model
AR-285 (serv.man26)
Pages
4 Few pages! See other manuals at the bottom of the first or last page.
Size
111.27 KB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / AR280 285 335 Circuit RADF
File
ar-285-sm26.pdf
Date

View Sharp AR-285 (serv.man26) Service Manual online

CIRCUIT DIAGRAM
Digital Copier
MODEL
 AR-280/285/335
SHARP CORPORATION
Parts marked with "
" is important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safety and performance of the set.
[ 1 ] PWB Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1
[ 2 ] Wiring Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2
[ 3 ] ICU PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
[ 4 ] PCU PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
[ 5 ] Operation control PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
[ 6 ] Operation L / R PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  65
[ 7 ] AC / DC power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  67
[ 8 ] AC PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  71
[ 9 ] DC power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  75
CONTENTS
4
1
3
5
6
2
4
1
3
5
6
2
A
B
C
D
E
F
G
H
I
A
B
C
D
E
F
G
H
I
+5V
CN1-1
DWVR
CN1-2
SGND
CN1-3
+5V
CN1-4
SGND
CN1-5
DLS1
CN1-6
+5V
CN1-7
SGND
CN1-8
DLS2
CN1-9
+5V
CN1-10
SGND
CN1-11
DLS3
CN1-12
LB (1)
LB (2)
LB (3)
LB (4)
LB (5)
LB (6)
LB (7)
LB (8)
LB (9)
LB (10)
LB (11)
LB (12)
+5V
CN2-1
SGND
CN2-2
DSS
CN2-3
SGND
CN2-4
DFMRS
CN2-5
+5V
CN2-6
MDL1
CN2-7
MDL2
CN2-8
CN2-9
SGND
LB (40)
LB (41)
LB (42)
LB (43)
LB (44)
LB (45)
LB (46)
LB (47)
LB (48)
DFM1
CN5-1
DFM2
CN5-2
DFSOL
CN5-3
FD+24V
CN5-4
FGOD
CN5-5
DC+24V CN5-6
AUOD
CN5-7
DC+24V CN5-8
NC
CN5-9
(82)  RD
(83)  BE
(84)  LB
(85)  OE
(86)  BN
(87)  OE
(88)  BK
(89)  BE
DC+24V
CN8-1
FAN
CN8-2
CN8-3
+24V
CN8-4
DRSOL
CN8-5
(117)  LB
(118)  LB
(119)  LB
+5V
CN43-1
DWVR
CN43-2
SGND
CN43-3
+5V
CN43-4
SGND
CN43-5
DLS1
CN43-6
+5V
CN43-7
SGND
CN43-8
DLS2
CN43-9
+5V
CN43-10
SGND
CN43-11
DLS3
CN43-12
LB (13)
LB (14)
LB (15)
LB (16)
LB (17)
LB (18)
LB (19)
LB (20)
LB (21)
LB (22)
LB (23)
LB (24)
CN42-12
CN42-11
CN42-10
CN42-9
CN42-8
CN42-7
CN42-6
CN42-5
CN42-4
CN42-3
CN42-2
CN42-1
(1)   LB
(2)   LB
(3)   LB
(4)   LB
(5)   LB
(6)   LB
(7)   LB
(8)   LB
(9)   LB
(10) LB
(11) LB
(12) LB
+5V
CN45-1
DWVR
CN45-2
SGND
CN45-3
+5V
CN45-4
SGND
CN45-5
DLS1
CN45-6
+5V
CN45-7
SGND
CN45-8
DLS2
CN45-9
+5V
CN45-10
SGND
CN45-11
DLS3
CN45-12
LB (25)
LB (26)
LB (27)
LB (28)
LB (29)
LB (30)
LB (31)
LB (32)
LB (33)
LB (34)
LB (35)
LB (36)
CN44-12
CN44-11
CN44-10
CN44-9
CN44-8
CN44-7
CN44-6
CN44-5
CN44-4
CN44-3
CN44-2
CN44-1
(13) LB
(14) LB
(15) LB
(16) LB
(17) LB
(18) LB
(19) LB
(20) LB
(21) LB
(22) LB
(23) LB
(24) LB
DFM1
CN24-1
DFM2
CN24-2
DFSOL
CN24-3
FD+24V
CN24-4
FGOD
CN24-5
DC+24V
CN24-6
(90)  RD
(91)  BE
(92)  LB
(93)  OE
(94)  BN
(95)  OE
RD  (82)
BE  (83)
LB  (84)
OE  (85)
BN  (86)
OE  (87)
CN23-1
CN23-2
CN23-3
CN23-4
CN23-5
CN23-6
+5V
CN13-1
DTD
CN13-2
DTDLED
CN13-3
+5V
CN13-4
DFD
CN13-5
DFDLED
CN13-6
+5V
CN13-7
SGND
CN13-8
CN13-9 DWS
LB (58)
LB (59)
LB (60)
LB (61)
LB (62)
LB (63)
LB (64)
LB (65)
LB (66)
CN13-10 NC
SGND
CN9-1
TXD
CN9-2
RXD
CN9-3
DTR
CN9-4
DSR
CN9-5
RESET
CN9-6
(125)  VT
(126)  BN
(127)  YW
(128)  PK
(129)  LB
DC+24V CN6-1
PGND
CN6-2
+5V
CN6-3
SGND
CN6-4
(130)  OE
(131)  BE
(132)  RD
(133)  GY
*B
CN4-1
B
CN4-2
*A
CN4-3
A
CN4-4
+24V
CN4-5
+24V
CN4-6
OE  (76)
BE  (77)
YW (78)
RD  (79)
WE (80)
BK  (81)
ASM-TRAY
ASM-TR2
ASM-TR1
DFSOL
CN28-1
FD+24V
CN28-2
(98)  LB
(99)  OE
LB  (92)
OE (93)
CN27-1
CN27-2
FD+24V
CN41-1
DFSOL
CN41-2
(135) RD
(136) RD
LB  (98)
OE  (99)
CN40-1
CN40-2
ASM-SOL
DFSOL
TDS-10SL-102
+5V
CN47-1
DWVR
CN47-2
SGND
CN47-3
LB (37)
LB (38
LB (39)
CN46-3
CN46-2
CN46-1
(25) LB
(26) LB
(27) LB
+5V
CN48-1
SGND
CN48-2
DLS1
CN48-3
(28)  LB
(29)  LB
(30)  LB
(37) LB
(38) LB
(39) LB
ASM-VR
+5V
CN49-1
SGND
CN49-2
DLS2
CN49-3
(31)  LB
(32)  LB
(33)  LB
+5V
CN10-1
SGND
CN10-2
DLS3
CN10-3
(34)  LB
(35)  LB
(35)  LB
+5V
CN19-1
DTD
CN19-2
DTDLED
CN19-3
+5V
CN19-4
DFD
CN19-5
DFDLED
CN19-6
+5V
CN19-7
SGND
CN19-8
DWS
CN19-9
LB (67)
LB (68)
LB (69)
LB (70)
LB (71)
LB (72)
LB (73)
LB (74)
LB (75)
CN18-9
CN18-8
CN18-7
CN18-6
CN18-5
CN18-4
CN18-3
CN18-2
CN18-1
(58) LB
(59) LB
(60) LB
(61) LB
(62) LB
(63) LB
(64) LB
(65) LB
(67) LB
+5V
CN20-3
DTD
CN20-2
DTDLED CN20-1
(67)  LB
(68)  LB
(69)  LB
+5V
CN21-3
DFD
CN21-2
DFDLED CN21-1
(70)  LB
(71)  LB
(72)  LB
+5V
CN22-3
SGND
CN22-2
DWS
CN22-1
(73)  LB
(74)  LB
(75)  LB
AUOD
CN30-1
DC+24V
CN30-2
BE  (88)
BK  (89)
AUOD
FGOD
CN29-1
DC+24V
CN29-2
OE  (94)
BN  (95)
FGOD
SS-5T
DFM2
CN26-1
DFM1
CN26-2
(96)  RD
(97)  BE
RD  (90)
BE  (91)
CN25-1
CN25-2
DFM
NC
CN39-1
NC
CN39-2
DC+24V
CN39-3
TXD
CN39-4
FGND
CN39-5
RXD
CN39-6
+5V
CN39-7
DSR
CN39-8
RESET
CN39-9
SGND
CN39-10
PGND
CN39-11
DTR
CN39-12
OE       (130)
VT        (125)
GN/YW(134)
BN       (126)
RD       (132)
PK        (128)
LB        (129)
GY       (133)
BE       (121)
YE       (122)
AN+24V
CN34-3
RDD
CN34-2
RDDLED
CN34-1
LB  (115)
LB  (116)
LB  (117)
RDD
SS-5T
(134)
ASM-IF
DWVR
DLS1
GP1A25LC
DLS2
GP1A25LC
DLS3
GP1A22HR
103H7124-1141
DTM
DWS
TLP1241N(CS)
DFD
DTD
ASM-SNR
PBA-CONTROL
(PWB-C)
ASM-RU
MDL1
CN16-1
MDL2
CN16-2
SGND
CN16-3
LB (55)
LB (56)
LB (57)
CN15-3
CN15-2
CN15-1
(46) LB
(47) LB
(48) LB
MDL1
CN17-3
MDL2
CN17-2
SGND
CN17-1
(55)  LB
(56)  WE
(57)  YW
LED
(PWB-D)
ASM-LED
+5V
CN12-1
SGND
CN12-2
DSS
CN12-3
SGND
CN12-4
DFMRS
CN12-5
+5V
CN12-6
LB (49)
LB (50)
LB (51)
LB (52)
LB (53)
LB (54)
CN11-6
CN11-5
CN11-4
CN11-3
CN11-2
CN11-1
(40) LB
(41) LB
(42) LB
(43) LB
(44) LB
(45) LB
+5V
CN13-3
SGND
CN13-2
DSS
CN13-1
(49)  LB
(50)  LB
(51)  LB
SGND
CN14-3
DFMRS
CN14-2
+5V
CN14-1
(52)  LB
(53)  LB
(54)  LB
DFMRS
TLP1225(C5)
TLP1240(C5)
DSS
(59)
BK
(58) (59)
BK BK
(58)
BK
PBA-SENSOR
-2214
PBA-SENSOR
-2214
RD
RD
FGND
GN/YW
CN8-6
CN8-7
AN+24V
RDD
RDDLED
(115)  LB
(116)  LB
DRSOL
CN38-1
+24V
CN38-2
(123) RD
(124) RD
LB  (118)
LB  (119)
CN37-2
CN37-1
DRSOL
TDS-10SL-102
RD
RD
B
CN7-1
*A
CN7-2
CN7-3
+24V
CN7-4
*B
CN7-5
(102)  WE
(103)  BK
(104)  BE
ASM-Drive R
CN7-6
CN7-7
AUOD
TGOD
+24V
(100)  BK
(101)  OE
B
CN33-3
*B
CN33-4
(110) BE
(111) GN
BE  (104)
GN (105)
CN32-3
CN32-1
CN7-8
A
(105)  GN
(106)  YW
(107)  RD
AUOD
CN31-1
TGOD
CN31-2
BK  (100)
OE  (101)
TGOD
DRM
CN33-1
CN33-2
+24V
+24V
CN33-3
CN33-4
A
*A
CN32-2
CN32-4
CN32-5
CN32-6
(108) WE
(109) BK
(112) YW
(113) RD
BK  (103)
WE (102)
RD (107)
YW (106)
Actual Wiring Diagram (RADF)
Document width VR
Document length sensor 1
Document length sensor 2 (Not used)
Document length sensor 3 (Not used)
Document set sensor
Paper feed motor rotation sensor
Display LED
Document timing sensor
Document feed sensor
Document width sensor
ASM earth sensor 1
ASM sensor 2
Transfer (belt) motor
ASM earth sensor W
ASM sensor interface
ASM drive interface
ASM drive F
Paper feed motor
Paper feed solenoid
Paper feed guide switch
ADF open/close switch
Reverse guide switch
Reverse motor
Reverse sensor
Reverse solenoid
Interface cable
RD : RED
BE : BLUE
OE : ORANGE
LB : LIGHT BLUE
BN : BROWN
BK : BLACK
GY : GRAY
VT : VIOLET
PK : PINK
YW : YELLOW
GN/YW : GREEN/YELLOW
WE : WHITE
MM4565A05
4
1
3
5
6
2
4
1
3
5
6
2
A
B
C
D
E
F
G
H
I
A
B
C
D
E
F
G
H
I
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
1
2
3
4
5
6
7
9
10
12
13
14
15
16
17
18
19
20
60
59
58
57
56
54
53
52
51
50
49
48
47
46
44
43
42
41
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
P43/AD3
P44/AD4
P45/AD5
P46/AD6
P47/AD7
P50/A8
P51/A9
P52/A10
P53/A11
P54/A12
P55/A13
P56/A14
P57/A15
P60/A16
P61/A17
P62/A18
P63/A19
P64/RD
P65/WR
P66/*WAIT
P75/ANI5
P76/ANI6
P77/ANI7
AVDD
AVREF1
AVSS
ANO0
ANO1
AVREF2
AVREF3
P20/NMI
P21/INTP0
P22/INTP1
P23/INTP2/CI
P24/INTP3
P25/INTP4/ASCK
P26/INTP5
P27/SI
P30/RXD
P31/TXD
P3
2/
*S
CK
P3
3/
S
O
/SB0
P3
4/
T
O
0
P3
5/
T
O
1
P3
6/
T
O
2
P3
7/
T
O
3
*R
ESE
T
X2
X1
PO0
PO1
PO2
PO3
PO4
PO5
PO6
PO7
P6
7/
*R
E
F
RQ
P7
4/
A
N
I4
P7
3/
A
N
I3
P7
2/
A
N
I2
P7
1/
A
N
I1
P7
0/
A
N
I0
P1
7
P1
6
P1
5
P1
4
P1
3
P1
2
P1
1/
P
W
M1
P1
0/
P
W
M0
MODE
AST
B
P4
0/
A
D
0
P4
1/
A
D
1
P4
2/
A
D
2
TP30
TP11
TP10
4
1
2
3
6
7
R4
22K
R3
22K
R2
22K
R1
22K
R24
10K
DFD
DTD
DSR
+5V
+5V
Q1
FN1L3N1
Q2
FN1L3N1
MDL1 CN2-7
CN2-8
20
22
10
9
8
7
6
5
4
3
25
24
21
23
2
26
27
2
5
6
9
12
15
16
19
1
11
3
4
7
8
13
14
17
18
CRG10G103J
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
R26
10K
+5V
MDL1
SGND CN2-9
+5V
DO
*CS
SK
DI
IC3
LE93C46M1
R49
100K
E2ROM+5V
R50
10
D1
C1
100µ F
+5V
D3
+5V
R41
10K
R42
10K
R8
10K
+5V
DTR
DSL1
DSL2
DTDDA
DFDDA
DTDOUT
DFDOUT
DFMRS
DLS3
TXD
RXD
IC11
µ PD78233GC-3B9
+5V
*OC
G
1D
2D
3D
4D
5D
6D
7D
8D
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
TC74HC373AF
IC1
IC2
AD (15 ~ 0)
O0
O1
O2
O3
O4
O5
O6
O7
*CE
*OE
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
LE27C256F
80
79
78
77
76
75
74
72
71
70
68
67
66
65
64
63
62
61
1
2
3
4
5
6
7
8
9
10
11
12
14
15
16
17
18
19
20
21
RA1-1
RA2-1
10K
x 8
+5V
+5V
10K
x 8
+5V
R2
7
10
K
R2
8
10
K
14
13
12
11
12
13
14
15
16
17
18
0
1
2
3
4
5
6
7
TP27
23
24
25
26
27
28
30
32
33
34
35
36
37
38
39
40
C42
0.1µ F
R91
820
OSC2
CSTS ~ OMGW
R90
1.0M
LED1
R89
1.5K
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
DFMPWM
FANPWM
NC
NC
D0
D1
D2
D3
D4
D5
D6
D7
XIN
XOUT
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
PWM7
PWM8
GL3PR8
60
59
58
57
56
55
54
53
51
50
49
48
47
46
45
44
43
42
41
FGOD
AUOD
DHS
DSS
+5V
P7
P6
P5
P4
P3
P2
P1
P0
BORROW
S2Q
S2B
S2A
TCLK
TESTI1
TESTI0
S1Q
S1B
NC
NC
NC
NC
M2
L
1
M2
L
2
M2
H1
M2
H2
M2
PWM
M2
CUR
M2
DI
R
M2
CL
K0
M2
CL
KA
M2
CL
KB
RES1
WD
T
RES2
S1
A
ROMCS
A1
5
A1
4
A3
A2
A1
A0
CHGCL
K
WR
RD
M1
H2
M1
H1
M1
L
2
M1
L
1
NC
NC
M1
CUR
M1
PWM
LSI-LC93043A-V54
IC7
2
3
6
7
12
+24V CN4-6
+24V
+24V CN4-5
*B
CN4-1
B
CN4-2
*A
CN4-3
A
CN4-4
13
15
14
16
9
11
8
10
5
4
A1
A2
B1
B2
VREF
TD1
TD2
SG
PG
VREF
+5V
C10
10µ F
PGND
TP28
R88
1.0K
PGND
C53
100µ F
A10
A20
B10
B20
NC
IC8
STK6713BMK4
C32
100PF
C39
0.1µ F
TP22
TP33
R113
68K
R116
20K
DFMPWM
TP44
RESE
T
10
9
8
7
6
1
2
3
4
5
3
4
1
2
PSW1
SKHHPK
SW1-1
SW1-2
SW1-3
SW1-5
OSC1
CST9 ~
83MTW
DRSOL CN8-5
+24V
CN5-4
PGND
Q14
2SK1282-Z
+24V
D8
SS14
1
2
3
4
5
6
7
0
ORG
TEST
Display LED
SB02-030
TP16
RDD
RDDLED
DWVR
RDDOUT
SW1-4
FD+24V
DFM1 CN5-1
10
11
6
7
2
9
8
+5V
4
2
6
3
1
13
16
C49
0.1µ F
INA
INB
INC
IND
CLK
VCC2
SG
OUT1-1
OUT1-2
OUT2-1
OUT2-2
VZ
VCC1-1
VCC1-2
PGND
DFM2 CN5-2
IC10
SK-BMS-5H
L1
72µ H
L2
72µ H
SK-BMS-5H
PG1
PG2
4
5 STK681-050
C34
1µ F
C28
0.1µ F
+5V
R62
4.7K
IC9-3
8
9
14
µ PC339G2
TP40
FD+24V
PGND
PGND
R99
0.39
R98
0.39
R97
0.39
R20
10K
C7
1000PF
R84
2.2K
R39
24K
R67
750
ZD2
12V
R37
10K
TP23
+5V
R9
10K
IC5.3
HD74LS06FP
6
5
D2
SB02-030
+5V
R5
10K
VCC
GND
C
OUT
+5V
IC6
M51953BFP
7
6
5
4
C4
1000PF
C9
0.33µ F
RESET
TGOD
RDDPWM
DRMPWM
DFSOL CN5-3
+24V
CN5-4
PGND
Q15
2SK1282-Z
FD+24V
D7
SS14
8
TP36
R82
1.0K
2
3
6
7
12
+24V CN7-3
+24V
+24V CN7-4
*B
CN7-5
B
CN7-6
*A
CN7-7
A
CN7-8
13
15
14
16
9
11
8
10
5
4
A1
A2
B1
B2
VREF
TD1
TD2
SG
PG
VREF
+5V
C11
10µ F
PGND
PGND
C54
100µ F
A10
A20
B10
B20
NC
IC12
STK6713BMK4
C33
100PF
C37
0.1µ F
TP43
TP42
R112
68K
R114
9.1K
DRMPWM
TP45
CONTROL PWB CIRCUIT-1 (RADF)
Reverse
motor
Transport
motor
Paper feed
motor
Reverse
solenoid
Paper feed
solenoid
4
1
3
5
6
2
4
1
3
5
6
2
A
B
C
D
E
F
G
H
I
A
B
C
D
E
F
G
H
I
Q16
RN1427
D10
S1G
PGND
TXD
CN9-2
RXD
CN9-3
BTR
CN9-4
BSR
CN9-5
RESET
CN9-6
SGND
CN9-1
+5V
CN6-3
SGND
CN6-4
AGND
CN2-6
DFMRS
CN2-5
SGND
CN2-4
+5V
CN1-10
DLS3
CN1-12
SGND
CN1-11
ZD1
6.2V
DC+24V
CN6-1
PGND
CN6-2
C55
47µ F
C50
0.1µ F
+5V
PGND
DC+24V
+5V
1
2
IC5-1
HD74LS06FP
4
3
3
4
IC5-2
HD74LS06FP
+5V
R51
4.7K
C3
1000PF
TP18
+5V
C43
0.1µ F
D9
S1G
C12
0.010µ F
C31
47µ F
2
1
C2
1000PF
R77
4.7K
IC4-1
TC74HC14AF
IC4-2
TC74HC14AF
R52
D6
DSA010
4.7K
R30
10K
R58
4.7K
Q5
2SC2712
C44
0.1µ F
R61
4.7K
R59
4.7K
R57
4.7K
DFD
CN3-5
+5v
CN3-4
DFDLED
CN3-6
+5v
TLP1225
10
11
IC4-5
TC74HC14AF
1
7
6
C24
3300PF
AGND
R55
4.7K
+5V
AGND
+5V
R11
10K
TP13
+5V
AN+24V
R81
2.0K
C14
0.10µ F
R56
4.7K
R66
4.7K
R46
100K
IC9-2
µ PC339G2
R79
22K
TP12
+5V
R54
4.7K
5
6
1
R87
10K
Q4
2SC2712
IC13-2
µ PC358G2
R93
100
C6
1000PF
DTFDA
DFDOUT
DFMRS
TXD
RXD
DTR
DSR
RESET
DTD
CN3-2
+5v
CN3-1
DTDLED
CN3-3
2
5
4
AGND
AGND
R10
10K
+5V
AN+24V
R80
2.0K
C19
0.10µ F
R95
2.0K
R45
100K
IC9-1
µ PC339G2
R78
22K
+5V
R53
4.7K
3
2
1
R86
10K
Q3
2SC2712
IC13-1
µ PC358G2
R94
100
C5
1000PF
DTDDA
DTDOUT
+5V
CN3-7
DWS
CN3-9
SGND
CN3-8
NC
CN3-10
TP24
+5V
Q12
FN1L3M
R29
15K
R100
180
R33
10K
R47
150K
C21
0.010µ F
R34
10K
DWMR
DLS1
DLS2
DLS3
DSS
DWS
DTD
DFD
TLP1240
+5V
CN2-1
DSS
CN2-3
SGND
CN2-2
+5V
R101
180
R115
15K
R23
10K
C16
0.010µ F
IC4-4
TC74HC14AF
9
8
C23
0.010µ F
R38
10K
+5V
CN1-7
DLS2
CN1-9
SGND
CN1-8
C18
0.010µ F
R36
10K
+5V
CN1-4
DLS1
CN1-6
SGND
CN1-5
C17
0.010µ F
R35
10K
+5V
+5V
+5V
CN1-1
DWVR
CN1-2
SGND
CN1-3
R76
1.0M
R65
4.7K
R71
4.7K
+5V
+5V
TLP1240
GP1A25LC
GP1A25LC
GP1A25LC
R21
10K
R22
10K
R43
10K
+5V
R68
14.7K
R105
20K
ZD3
16V
+24V
C56
0.22µ F
R92
4.7
13
12
IC4-6
TC74HC14AF
Q10
FA1L3N
FA1L3N
Q9
PGND
R83
1.0K
R106
2.0K
Q13
2SJ265
C8
1000PF
DC+24V CN8-6
FAN
CN8-7
DC+24V
TP48
R85
1.0K
FANPWM
AGND
DC+24V
C29
0.10µ F
C57
4.7µ F
R118
10
AN+24V
C45
1.0µ F
C59
1.0µ F
C60
1.0µ F
C52
1.0µ F
C35
0.1µ F
C51
1.0µ F
C36
0.1µ F
C47
0.1µ F
C48
C61
1.0µ F
C41
1.0µ F
1.0µ F
C62
1.0µ F
C58
1.0µ F
+5V
AN+24V
C25
0.10µ F
C30
0.10µ F
E2ROM+5V
C38
0.1µ F
AGND
6
5
7
IC14-2
µ PC58G2
5
9
13
6
8
12
IC4-3
HD74LS06FP
IC5-4
IC5-6
HD74LS06FP
HD74LS06FP
TP38
C13
0.010µ F
R60
4.7K
TP8
TP7
TP9
+5V
GND
DC+24V
PGND
11
10
IC5-5
HD74LS06FP
ZD6
18V
ZD7
18V
+5V
+5V
AUOD
R10
10K
R13
10K
FGOD
Q7
FA1L3N
FA1L3N
Q8
NC
CN5-9
DC+24V
CN5-8
AUOD
CN5-7
DC+24V
CN5-6
FGOD
CN5-5
DC+24V
FD+24V
+5V
TGOD
R40
10K
Q11
FA1L3N
TGOD
CN7-2
AUOD
CN7-1
ZD5
18V
+5V
R25
4.7K
PGND
FD+24V
R44
4.7K
PGND
C40
47µ F
AGND
C26
0.10µ F
AN+24v
CN8-1
CN8-2
+5V
C15
0.10µ F
AGND
R108
2.2K
TP50
CN8-3
RDD
RDDLED
13
10
11
AGND
R72
4.7K
R48
100K
IC9-4
µ PC339G2
+5V
R73
4.7K
Q17
FA1L3M
AGND
R63
1.5K
R74
3.0K
R32
10K
R70
10K
AGND
R64
10K
+5V
D4
SB02-03Q
1
2
3
R6
10K
R7
10K
IC14-1
µ PC358G2
AGND
AGND
C22
0.010µ F
R107
2.2K
TP47
TP14
AGND
C20
0.10µ F
C46
0.10µ F
R31
4.7K
RDD
RDDLED
RDDOUT
RDDPWM
CONTROL PWB CIRCUIT-2 (RADF)
Tray document
width VR
Document length
sensor 1
Document length
sensor 2
Document length
sensor 3
Document set
sensor
Document width
sensor
Document timing
sensor
Document feed
sensor
Paper feed
motor rotation
sensor
Reverse
sensor
Communication
signal line
Power supply
Reverse guide
switch
ADF open/close
switch
Paper feed guide
open/close switch
FAN motor
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Download Sharp AR-285 (serv.man26) Service Manual (Repair Manual)

Here you can view online or download Sharp AR-285 (serv.man26) Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sharp AR-285 (serv.man26) Copying Equipment. Information contained in Sharp AR-285 (serv.man26) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).