[10] Circuit Diagram - Sharp SF-A55 Service Manual

[10] CIRCUIT DIAGRAM

A. Circuit Diagram
A B
The parts in (----) are not actually installed.
6
(Exept for oscillators OSC1 adn OSC2.)
+5V
R5 3
R5 2 R7 1
2
CN7-2 TX D1
3
CN7-3 RXD1
4
CN7-4 D T R
Communication cable
5
CN7-5 DSR
6 5 6 9 8
CN7-6 RES ET RESETA
1
R73
CN7-1 SGND
IC12.3 IC12.4
C4 6
5
Reversed original R1 31
1
CN2-1 RDD LE D
sensor LED
+5V +5V +5V
R115
R111
IC2-1
R1 32
5
+
2
R3 0
Reversed original 2 4
CN2-2 R D D -
3 VCC-+5V
sensor PTr CN2-3 SGND
C47 R107
+5V
Original feed sensor 16
CN1-16 +5V
14
CN1-14 DF DLE D
LED
+5V +5V +5V
R113
R110
R1 09 IC2-2
7
+
1
R2 9
15 6
Original feed sensor -
CN1-15 D F D
SGND 13
CN1-13
PTr
C43 R106
+5V
4
C
R7 5
B
+5V
DA3 Q1
Timing sensor
E
+5V
R133
10 C4 0
LED
CN1-10 DT DLE D
R7 6
Timing sensor 11
CN1-11 D T D
12
CN1-12 SGND
PTr
+5V +5V
6
CN1-6 +5V
Peper feed motor
22
CN1-22 +5V
23 R6 2 R6 8
rotation sensor CN1-23 +5V
R6 3
24
CN1-24 DFMRS
transport motor 4
CN2-4 +5V
R6 9
5
DTMR SA
CN2-5
rotation sensor
28
+5V
CN1-28 +5V
27
CN1-27 DED2
Original end sensor 2 26 R1 44 R7 7
CN1-26 DEDLED
6
R4 1 R25
CN2-6 SGND
R4 0
E
R4 3
B
Q1 DA4
C
C 2 R44
3
C3 9
DC+24V
ADF open/close
3 C
ZD 6
CN3-3 DC +2 4 V R64
sensor 4 B
CN3-4 AU0D Q13
Peper feed guide 1
CN5-1 AU0D ZD 5
E
2 B
CN5-2 FGOD
open/close sensor
5 +24V
CN3-5 FGOD ZD 4
Reverse guide 6
CN3-6 TGOD
1
CN1-1 S GND
open/close sensor
19
R121
CN1-19 SGND
20
CN1-20 SGND
+
25 +5V
CN1-25 SGND C3 5
R2 1
5 PGND
CN9-5 +5V +5V
1 R6 4
CN9-1 SET
6 R6 4
CN9-6 SO
4 R6 4
Simulator
CN9-4 SI
3 R6 4
CN9-3 CS
2 R6 4
CN9-2 SCK
2 7
CN9-7 SGND
SW1.2
R1 03 R1 04
SW1.5
+5V SW1.4
R102 R1 01
R1 6 R1 5
SW1.3
SW1.1
R1 7 R1 4
2 R4 9
CN1-2 DWS1
3 R4 8
CN1-3 DWS2
4 R4 7
CN1-4 DWS3
Tray width switch
5 R4 6
CN1-5 DWS4
7
CN2-7 N.C.
+5V
8
CN2-8 N.C. R6 0 R5 9 R54
+5V
R6 1 R45
17
Original set sensor
CN1-17 +5V
18
CN1-18 DSD
21
Original width sensor
CN1-21 DMS
8
CN1-8 D LS 1
Tray feed size sensor
7
CN1-7 D LS 2
9
Original end sensor 1 CN1-9 DED1
1
A B
– 33 –
C D
+5V
TP 4
R2 8 R2 7
IC12.1
R7 0 12
1 2 17 7
P67/W
P34/Rxd
13
VCC-+5V
P66/R
C1 3 TP 1
IC4.2
4 3 17 6
P35/Txd
78
VCC-+ 5V
TP2 P33/PWMout
R7 2 21
3 4 16 3 R D
P42/AN2
20
WR
IC12.2
C1 4 TP 3 +5V
IC4.3
+5V
6 5 17 4
P37/Srdy
C
RA2.8
B
TP 5 26
Q3
RESETB RESET 42
A 15
IC5-4
E 43
12 67
A 14
R8 7 + D-A1
14 44
A1 3
13
- 45
A 12
C15 46
A 11
TP 6
47
A 10
R50
48
19 A 9
P60/INT1 49
A 8
50
TP 7 A 7
51
A 6
52
60 A 5
P45/AN5 53
A 4
TP 8
54
A 3
IC5-3 55
C A 2
10 16 6
R8 4 + D-A2 56
B 8 A 1
Q2 57
9
C1 0 A 0
-
E
R1 35
IC3
TP 71
+5V
R91
18
P61/INT2
RA3.1
TP 9
33
D 7
59 34
P46/AN6 D 6
35
D 5
36
D 4
+5V
37
D 3
+5V 38
R1 16 D 2
39
R1 12
D 1
TP 70
40
R9 4 D 0
R7 8
11
+
12 17
R3 9
P62/INT3
10
-
TP 10
C48 R1 08
+5V
58
P47/AN7
TP 11
D 9
3
R3 8 R129
P30/EV1
65
P40/AN0
DFMRS
R128
DTMRSA 16
P63/PRDY
+5V
R1 43
C5 5 C4 2 79 R127
15
DTM2CK P32/EV3
D1 1 P64/A0
IC5-2
TP 72
5
R2 0
+ R126
7 14
DED2 P65/CS
6
-
+5V
R2 6
DE DAD R3 5 R3 7
R2 4
R3 2
R3 8
TP 14
VDD-+5V
AU0D
2
TP 13 Fref
S2 0
7
DF MRS FGin
5
FGOD +5V L W
C
TP 12 12
R/S
Q12 14
C5 6 C
TGOD
C
R8 6
IC9
E 15
B +5V R L
Q11
17
25 RM
CNVss
4
68
Test
E DAVref
69
ADVref
+5V 71
R 4 R 3 R2 R 1 AVcc
TP 18 TP 16
70
AVss
TP 19 TP 17 TP 15 TP69
R 5 R1 46
6
61
P55/DB5 C LF A N
P44/AN4
64
P41/AN1
75
P36/Selk
5
P56/DB6 29
4 Xout
P57/DB7
2 9 7 R1 05
28
DSN2 S 10 P43/AN3
Xin
5 6
1 3
1
4 7 NC R123
2 4
PSW1 27
NC 1 3
3 8
30
NC
TP22 TP20 41
1 10
NC
TP23 TP 21 TP 68 80
NC
22
R1 3 11 R/W
P50/DB0 23
2
R1 2 10 SYNC
P51/DB1 31
R1 1 9 TMG
P52/DB2
R1 0 8 2
P53/DB3 P31/EV2 DFPWM
IC4.4
62
DEDAD P43/AN3
24 11 10 9
C 5 C1 7
RESETout
IC12.5
C 4 C 3
R5 1
R5 8
R5 6
R5 7
R5 5
C 9 C 1
C 8 C 7 C 6
C D
E F
TP 65 TP 63
VCC-+ 5V
TP 66 TP 64
VPP-+5V
30
M2PWM
70
RD*
71
WR*
80
ROMCS*
+5V
RA1.8 20 VCC-+5V
*CE
A[15] 22
VPP-+5V
*OE
A[14] A[0]
10
A0
A[13] A[1]
9
A1
A[12] A[2] IC11
8 A[0]
74
A2
A[11] A[3] 7 A0
A[1]
A3 75
A[10] A[4]
6 11 D[0] A1
A[2]
A4 O0 76
A[9] A[5]
5 12 D[1] A2
A[3]
A5 O1 77
A[8] A[6]
4 13 D[2] A3
A[14]
A6 O2 78
A[7] A[7]
3 14 D[3] A[15] A14
A7 O3
A[6] A[8] 79
25 15 D[4] A15
A8 O4
A[5] A[9]
24 16 D[5]
A9 O5
A[4] A[10]
21 17 D[6]
A10 O6
A[3] A[11]
23 18 D[7]
A11 O7
A[2] A[12]
2 D[0] 3
A12 D[0]
A[1] A[13]
26 D[1] 4
A13
A[0] D[1]
A[14] 27
D[2] 5
A14
D[2]
6
D[3]
D[3]
D[4] 7
D[4]
D[5] 8
D[5]
D[6] 9
D[6]
D[7] 10
D[7]
D[7]
D[6]
D[5]
D[4]
D[3]
TP 52
D[2]
D[1]
34
D[0] M2CLKO
33
DTM2CK
M2DIR
TP 53
+5V
11
Xin
D8 R1 00
R1 34
12
Xout
E2ROM5V TP 51
1 3
R1 30
37
RES1*
R1 14 RESETB
OSC2
IC 13
C41
4
+ +5V
D O
2
IC16 C5 0
1
CS
+5V TP 50
R1 22
2 6
SK ORG R6 6
LE D1 36
3 7 M2CLKB
DI TEST
TP49
35
C DTMRSA M2CLKA
+5V
B
Q16
TP67
VCC-DC+24V
E
C4 5 GND-GND
3 +5V
Fsig
5 +5V
19 R9 3 Ct IC8
TP 24
DO
6
8 R1 25 10
R1 39 TP 25 Rt
A PC E2
9 R1 24 R6 5 15
11
AFC CL- C 2 R1 41
10 16
TP 41
Vro CL+ 9
13 D 6 5 2 E1
C5 4
L D + EA-
7
1 8 13 12 61
11 R137
RV 6 EA+ C 1 M1PWM
- + C5 1
18 R1 36
VC 3 14
16 C3 8 IC5-1 Fead Ref IC12.6
NC R4 2 +
4 13
6
De ad OC
NC R138
+5V
R3 3
ZD 8
R145
R1 9
IC4.1
1 2
RESETA R3 4
RESETB TP 40
+5V
R92
21
+5V C1 8
PWM8
TP 38 TP 39
R7 4
IC1 7
D10 C37
VCC 50
5 6 S2Q S2Q
C OUT
+5V 48
G N D DFPWM S2A
49
4 DTMR5A S2B
C1 6 C1 9
R6 7
IC4.5
TP 26
10 11 38
WDT
OSC1
+5V
40
DSM2 S1A
43
LED2
DED2 S1B
44
SIO S1Q
TP 37
R8 9
19
8
DA3 PWM6
39
RES2* BORROW
TP 33 TP 35
TP 32 TP 34 TP 36
R2 2 53
P0/MP0
R 7 54
P1/MP1
R 8 55
P2/MP2
R 9 56
P3/MP3
R 6 57
P4/MP4
58
TGOD P5/MP5
59
FGOD P6/MP6
60
A UOD P7/MP7
E F
G H
+5V
E
E
Q14
Q15
B
B
C
1
C
2
3
T P60 TP 62
+5V
TP 59 TP 61 TP 58
IC7
67 14 10
M 1H1 INA OUT1-1 L2
65 12 11 4
M1 L1 INB OUT1-2
68 15 6
M 1H2 INC OUT2-1
L1
66 3 7 3
M1 L2 IND OUT2-2
72 1
C5 3
CHGCLK CLK +24V
13 2
VCC2 V2
9 +
VCC1-1
C3 3 16 8
SG VCC1-2
PG1 P G 2
C3 2
4 5
T P55 TP 57
+5V
TP 54 TP 56
IC6
PG ND
27 14 10
M 2H1 INA OUT1-1
L4
25 12 11 2
M2 L1 INB OUT1-2
28 15 6
M 2H2 INC OUT2-1 L3
26 3 7 1
M2 L2 IND OUT2-2
1
CLK C5 2 +24V
13 2
VCC2 V2
9 +
VCC1-1
C3 4
16 8
SG VCC1-2
PG1 PG2
C31
4 5
+5V
PG ND
TP 48 TP 27
R1 8
IC2-3
R3 1 R1 18 R117
8
R23
-
62 14
M1 CU R
9
+ R1 19
32 +24V
M2 CU R
C1 1
R1 20
C1 2
R147
R140
+24V
D1 2
1
TP 47
R90
P GND
2
20
ZD 1 3
PWM7 DA1
R79
R8 8
CLFAN Q10
R142
P GND
PGND
D 4 +24V
6
5
TP 46
D
D 5 +24V
R85 Q8
14 7
PWM1
G S 8
TP 45 D
D 3 +24V
P GND
R8 3
Q9 3
15
PWM2
4
G S
TP 44 D
+24V
PGND D 2 ZD 2
R8 2 Q7 2
16
PWM3
G S 1
TP 43
D
D 1 Z D 3 +24V
P GND
R8 1 Q6
6
17
PWM4
5
G S
TP 42 D
P GND
R8 0 Q5
18
PWM5
G S
TP 31
+5V
PGND
TP 29
1
+
CN4-1 +5V
Power +5V 2 ZD 7 C36 C3 0
CN4-2 SG ND
TP 30
+24V
+5V
TP 28
3 +
CN4-3 DC+24V
C4 4 C4 9
Power +24V
4 D 7
CN4-4 P GND
47
TC LK
46
TESTI1
45
P GND
TESTI0
51
IC4.6
13 12
1
N C 1
+5V E2ROM5V DC+24V
2
N C 2
23
N C 23
24
N C 24 C20 C2 1 C2 2 C2 3 C2 4 C25 C2 6 C2 7 C2 8 C2 9
41
N C 41
42
N C 42
63
N C 63
64
N C 64
Note: 1) C20~C23 are the pass capacitors of IC2,IC4,IC9,and IC12.
2) C24~C26 are the pass capacitors of IC3,IC11,and IC13.
3) C27 is the pass capacitors of IC10.
4) C28 and C29 are the pass capacitors of IC5 and IC8.
G H
– 34 –
I
6
M DL1 CN8-1
To LED PWB
MDL2 CN8-2
SG ND CN8-3
DFM 2 CN5-4
To Paper feed
motor
DFM 1 CN5-3
5
DTM 2 CN3-2 To Transport
motor
DTM 1 CN3-1
4
+24V CN10-1
N.C. CN10-2
C LF A N CN10-3
+24V CN5-6
Shutter solenoid
SSOL CN5-5
3
Paper feed
+24V CN5-7
DFSOL CN5-8 solenoid
Reverse
+24V CN6-3
DRSOL CN6-4
solenoid
+24V CN6-2
Transport clutch
DTC CN6-1
+24V CN6-6
Transport brake
DTB CN6-5
2
1
I