Sharp AL-1551 (serv.man4) Service Manual ▷ View online
AL-1551 CIRCUIT DIAGRAM 13-14
A
A
1
1
GDI/USB PWB
/INIT
MDATA3
MAD3
PARAAD6
3.3V
MAD2
9
37
5V
18
10
MDATA0
MDATA14
22
MDATA2
7
/AUTOFD
MDATA7
4
GDI
MEMORY
PWB
10
PARAAD5
3.3V
8
PE
28
MDATA5
1
PARAAD2
15
/RAS1
14
MDATA11
18
D-GND
PE
16
16
/RAS1
17
MAD9
MDATA9
34
1
34
MAD8
37
MAD6
PARAAD3
5V
PARAAD0
27
PARAAD5
28
13
19
14
23
38
2
PARAAD3
/CAS0
D-GND
5
24
9
9
2
/RAS2
39
/CAS0
MDATA8
/FAULT
16
18
MDATA10
31
25
8
/CAS1
16
/WE
MAD6
/WE
MDATA13
/STB
17
/MEMORY
MDATA0
/INIT
21
25
MAD2
MDATA15
/AUTOFD
MDATA7
MAD1
PARAAD0
22
7
PARAAD2
MAD0
SLCT
20
39
5V
D-GND
MAD0
31
MDATA11
MAD5
11
18
MDATA4
9
12
40
MDATA5
5
MDATA1
11
12
MDATA15
15
MAD9
33
26
20
21
21
MDATA9
3
/ACK
38
/RAS0
20
MDATA6
MDATA2
24
32
D-GND
5
10
17
/CAS1
17
12
8
MDATA10
23
23
22
PARAAD1
/OE
MDATA12
MAD8
26
25
6
4
22
BUSY
PARAAD7
/FAULT
MCU PWB
/ACK
13
D-GND
MDATA3
19
MDATA4
33
3.3V
D-GND
8
26
/GDI-IN
/RAS2
5V
CN108
/REV
14
3.3V
3
SLCT
7
MAD7
D-GND
6
/OE
MAD10
24
BUSY
D-GND
PARAAD1
14
PARAAD6
5
5V
PARAAD4
40
35
MAD11
30
2
/MEMORY
/STB
29
13
3
36
MAD5
D-GND
30
32
MDATA6
1
1
19
CN114
12
15
20
24
6
15
35
29
25
MAD7
PARAAD7
/GDI-IN
6
MAD1
MDATA14
4
MAD4
3
11
23
36
MDATA12
/REV
/SLCTIN
13
MAD11
MDATA13
10
MAD10
21
7
27
4
PARAAD4
/SLCTIN
/RAS0
MDATA8
MAD4
D-GND
D-GND
MAD3
MDATA1
26
5V
19
2
11
3
10
13
32
19
11
33
4
36
23
6
7
31
12
21
1
14
25
8
2
5
9
27
29
30
Data Bit 0
/STROBE
Data Bit 2
Data Bit 3
Data Bit 4
Data Bit 5
Data Bit 6
Data Bit 7
/ACK
BUSY
PE
SLCT
/ERROR
/INIT
D-GND
/SLCT IN
Data Bit 1
/AUTO FD XT
D-GND
D-GND
D-GND
D-GND
D-GND
D-GND
D-GND
CN701
CN502
CN501
Personal
Computer
D-GND
ACTUAL
WIRING DIAGRAM 2/5 (GDI)
% !"#
AL-1551 CIRCUIT DIAGRAM 13-15
1
1
2
2
3
3
4
4
E
E
D
D
C
C
B
B
A
A
BL
BR
GY
GY
D-GND
PSW2
PSW2
CED2
PSW2
D-GND
2
1
GY
BR
4
6
11
9
BR
GY
BR
GY
BR
D-GND
PSW2
12
11
GY
GY
FG
6
9
FG
FG
BR
BL
RD
OR
GY
GY
BR
BR
GY
BR
OR
RD
BL
MCU PWB
CED2
13
D-GND
D-GND
14
14
1
/CPFS2
7
2
13
CED2
5V
24V
11
8
PPD3
4
BR
BR
GY
GY
GY
BR
OR
OR
BL
RD
RD
2CS UN
CN106
1
2
3
PPD3
5V
PPD3
D-GND
8
7
2
1
1
2
24V
/CPFS2
2
1
CPFS2
GY
1
D-GND
2
D-GND
D-GND
CED2
PPD3
5V
24V
/CPFS2
14
13
8
7
4
2
1
ACTUAL
WIRING DIAGRAM 3/5 (2nd cassette)
& !"#
AL-1551 CIRCUIT DIAGRAM 13-16
1
1
2
2
3
3
4
4
E
E
D
D
C
C
B
B
A
A
LB
LB
LB
GY
BL
PK
D-GND
LEDSDOD
SDOD
SDOD
3
2
1
CN126
CN123
FG
MCU PWB
SB4D
Senser PWB
PAPER FEED UNIT
BR
PK
2
1
3
SPPD
GY
FG
6
PK
PL
RD
RD
BR
BL
BL
OR
BR
PL
RD
GY
24Vmir
SPMT-1(B)
SPMT-0(A)
24Vmir
SPMT-3(/B)
SPMT-2(/A)
SPF UN
BL
BL
3
SB4D
1
4
24V
5
SPID
5
4
3
D-GND
2
1
5V
/SPUS
5V
5
BL
SDSW
4
D-GND
4
1
5
2
1
2
SPID
OR
SDSW
3
GY
SPUS
2
1
PL
1
2
3
6
2
SPMT
1
23
BL
RD
19
24Vmir
SPMT-1
SPMT-0
PL
BR
BR
22
24Vmir
20
SPMT-3
SPMT-2
PK
21
RD
24
OR
RD
BR
PK
GY
BL
PL
GY
/SPUS
24V
5V
SB4D
SDSW
SPID
LEDSPPD
SPPD
D-GND
D-GND
12
11
4
2
8
7
5
3
ACTUAL
WIRING DIAGRAM 4/5 (SPF )
' !"#
AL-1551 CIRCUIT DIAGRAM 13-17
1
1
2
2
3
3
4
4
E
E
D
D
C
C
B
B
A
A
CN123
GY
BL
PK
D-GND
LEDSDOD
SDOD
SDOD
Copier Side
3
2
1
CN126
24V1
/DMT0
/DMT1
Duplex
Motor
3
2
1
CN115
/DMT2
/DMT3
5
4
2
SPMT-1(B)
FG
MCU PWB
NC
Senser PWB
PAPER FEED UNIT
BR
PK
2
1
3
SPPD
GY
FG
6
PK
PL
RD
RD
BR
BL
RD
BL
PK
OR
BR
PL
RD
RD
PL
RD
GY
BL
PL
SPMT-2(/A)
SPMT-3(/B)
24Vmir
24Vmir
SPMT-0(A)
RSPF UN
BL
BL
BL
BL
BL
BL
BL
BL
BL
PK
RD
RD
RD
2
2
1
1
1
3
NC
1
2
24V
1
4
SPID
5
4
/SPFS
3
D-GND
2
24V
3
2
1
5V
/SPUS
5V
5
BL
2
1
SDSW
4
5
D-GND
4
1
5
2
SRRC
SPMT
1
2
SPID
OR
24V
1
SDSW
3
GY
SPUS
2
24V
1
2
PL
2
SGS
1
SPFS
/SRRC
6
/SGS
17
18
14
13
16
15
/SPFS
1
24V
23
BL
RD
19
24Vmir
SPMT-1
SPMT-0
PL
BR
BR
22
24Vmir
20
SPMT-3
SPMT-2
PK
21
RD
24
OR
RD
BR
PK
GY
BL
PL
GY
/SGS
24V
/SPUS
24V
/SRRC
24V
5V
NC
SDSW
SPID
LEDSPPD
SPPD
D-GND
D-GND
12
11
4
2
8
7
5
3
ACTUAL
WIRING DIAGRAM 5/5 (RSPF , Duplex)
( !"#
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