Read Sharp AR-SP3 (serv.man2) Service Manual online
4. Circuit diagram
1
1
2
2
3
3
4
4
E
E
D
D
C
C
B
B
A
A
USB-ON
USB-IN
PARAAD7
5V1
/USB-EN
3.3V
PARAAD0
PARAAD1
PARAAD2
PARAAD3
PARAAD4
PARAAD5
PARAAD6
PE
/INIT
/AUTOFD /STB
/SLCTIN
BUSY
/ACK
SLCT
/FAULT
5V1
5V1
5V1
5V1
5V1
5V1
5V1
5V1
5V1
31FE-BT-VK-N
CN502
74LS245
IC601
IEEE1284
CON
IEEE1284
CON
CN501
SBO-02SAN
L501
DAP202K
D609
DAP202K
D608
DAP202K
D607
DAP202K
D606
DAP202K
D605
DAP202K
D604
DAP202K
D603
DAP202K
D602
DAP202K
D601
3.3kJ
R630
1.2kJ
R629
1.2kJ
R628
1.2kJ
R627
1.2kJ
R626
1.2kJ
R622
1.2kJ
R621
1.2kJ
R620
1.2kJ
R618
1.2kJ
R625
1.2kJ
R624
1.2kJ
R623
1.2kJ
R619
22000p
C613
47u
16V
47u
47u
16V
C501
0.1u
C621
100J
1/2W
100J
1/2W
R501
22J
R614
22J
R615
22J
R617
22J
R616
22J
R610
22J
R609
22J
R613
22J
R606
22J
R604
22J
R612
22J
R611
22J
R608
22J
R607
22J
R605
22J
R603
22J
R602
22J
R601
100p
C615
100p
C614
0.1u
C619
100p
C616
0.1u
C620
100p
C618
100p
C617
560p
C612
33p
C611
33p
C610
1000p
C609
100p
C608
100p
C607
100p
C606
100p
C605
100p
C604
100p
C603
100p
C602
100p
C601
74LS244
IC602
74LS244
IC603
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
11
B8
12
B7
13
B6
14
B5
15
B4
16
B3
17
B2
18
B1
1
DIR
19
G
9
A8
8
A7
7
A6
6
A5
5
A4
4
A3
3
A2
2
A1
SHIELD
36
/SLCTIN
35
VCC
34
(NC)
33
S
GND
S
GND
32
/FAULT
31
/INPRIM
30
GND
29
GND
28
GND
27
GND
26
GND
25
GND
24
GND
23
GND
22
GND
21
GND
20
GND
19
GND
18
VCC
17
F
GND
F
GND
16
S
GND
S
GND
15
(NC)
14
/AUTOLF
13
SLCT
12
PE
11
BUSY
10
/ACK
9
DATA
8
DATA
8
8
DATA
7
DATA
7
7
DATA
6
DATA
6
6
DATA
5
DATA
5
5
DATA
4
DATA
4
4
DATA
3
DATA
3
3
DATA
2
DATA
2
2
DATA
1
DATA
1
1
/DSTB
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
3
2Y4
5
2Y3
7
2Y2
9
2Y1
12
1Y4
14
1Y3
16
1Y2
18
1Y1
19
2G
1
1G
17
2A4
15
2A3
13
2A2
11
2A1
8
1A4
6
1A3
4
1A2
2
1A1
3
2Y4
5
2Y3
7
2Y2
9
2Y1
12
1Y4
14
1Y3
16
1Y2
18
1Y1
19
2G
1
1G
17
2A4
15
2A3
13
2A2
11
2A1
8
1A4
6
1A3
4
1A2
2
1A1
(2-E3)
(2-D3)
USB-ON
/USB-EN
(2-A3)
(2-A3)
(2-A2)
(2-A2)
(2-A2)
(2-B4)
(2-B3)
(2-B1)
(2-A2)
(2-A3)
(2-A3)
(2-A3)
(2-A2)
(2-A2)
(2-A2)
(2-A2)
(2-A2)
(2-A2)
(2-A2)
(2-A2)
/1284-EN
USB-IN
/GDI-IN
SLCT
/FAULT
PE
BUSY
/ACK
/STB
/AUTOFD
/SLCTIN
/INIT
/REV
PARAAD7
PARAAD6
PARAAD5
PARAAD4
PARAAD3
PARAAD2
PARAAD1
PARAAD0
F.G
GDI PWB(GDI SECTION)
AR-SP3
5 – 3
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