AR-P350, AR-P450 (serv.man7). ARP350 and ARP450-Circuit Diagrams - Sharp Copying Equipment Service Manual (repair manual). Page 82

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MOTHER
BOARD
PWB
MFP
CONTROL
BOX
PCU
PWB
BOARD to BOARD
D5
D4
KEY2
LED3\
+5V1
EN
GND2
KEY4
D1
LED1\
KEY3
D0
D6
LED2\
D2
KEY6
KEY5
D7
KEY1
R/W
RS
D3
GND2
+12V
+3.3V
+5V1
+3.3V
GND2
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+24V3
+5V1
+5V1
+24V3
+24V3
+5V1
+5V1
+5V1
+5V1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
40
38
TX25-50P-LT-H1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
39
CN3
41
42
43
44
45
46
47
48
49
50
23
GND2
PCU_TXD
PCU_RXD
PCU_DTR
PCU_DSR
PCU_RES
40
38
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
39
41
42
43
44
45
46
47
48
49
50
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
CN1
+24V3
+24V3
+24V3
+5V1
24
9604S-28F
CN1
CN3
+12V
+12V
+12V
+12V
+12V
+24V3
+24V3
+24V3
+24V3
+24V3
+24V3
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
POF\
FWP-PCU
MSW_MON
GND2
GND2
FM2\
GND2
VIDEOin+
GND2
GND2
GND2
PAGE
GND2
GND2
GND2
GND2
GND2
GND2
HSYNC
VIDEOin-
TX24-50R-LT-H1
PCU_TXD
PCU_RXD
PCU_DTR
PCU_DSR
PCU_RES
+12V
+12V
+12V
+12V
+12V
+24V3
+24V3
+24V3
+24V3
+24V3
+24V3
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
POF\
FWP-PCU
MSW_MON
GND2
GND2
FM2\
GND2
VIDEOin+
GND2
GND2
GND2
PAGE
GND2
GND2
GND2
GND2
GND2
GND2
HSYNC
VIDEOin-
+24V1
GND2
3
2
1
CN4
FM2\
+24V1
GND2
3
2
1
FM2
FM2\
Controller Section
CN2
5
PCU_RXD
GND2
18
PAGE
GND2
21
12
PCU_DSR
15
6
GND2
9
3
22
VIDEOin-
16
GND2
GND2
19
10
GND2
13
4
PCU_TXD
7
1
GND2
PCU_DTR
20
GND2
VIDEOin+
23
14
HSYNC
GND2
17
8
PCU_RES
11
2
MSW_MON
FWP-PCU
POF\
9604S-28F
+24V1
FM2\
21
18
15
9
12
6
3
23
20
17
14
8
11
5
2
22
19
16
13
7
10
4
1
CN2
PCU_RXD
GND2
PAGE
GND2
PCU_DSR
GND2
VIDEOin-
GND2
GND2
GND2
PCU_TXD
GND2
PCU_DTR
GND2
VIDEOin+
HSYNC
GND2
PCU_RES
MSW_MON
FWP-PCU
POF\
9604S-28C
+24V1
FM2\
24
25
26
27
28
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
9604S-28C
+24V3
14
2
21
+5V1
+5V1
11
GND2
15
3
9
+3.3V1
10
12
16
23
8
+5V1
4
13
+3.3V1
+12V
+24V3
22
GND2
1
18
+5V1
20
+24V3
17
+5V1
+5V1
+24V3
19
+5V1
+24V3
5
+3.3V1
7
+24V3
6
28
26
27
25
24
26
24
25
27
28
+5V1
+5V1
+5V1
+5V1
+5V1
25
28
26
24
27
+5V1
+5V1
+5V1
+5V1
+5V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
+3.3V1
VFM1\
GND2
VIDEO
LSU S/H
GND2
LDON\
VIDEO\
SYNC\
GND2
1
2
+5V1
PMCLK\
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CN16
+5V LD
GND2
21
22
READY(READY\)
START\
TEST(TEST\)
23
GND2
S30B-PHDSS-B
VFM1\
24
VRB
GND2
+5V1
GND2
+24V1
+24V1
GND2
GND2
25
26
27
28
29
30
GND2
GND2
GND2
GND2
45PPM(35PPM)
B3B-PH-K-S
24FMN-STRK-A
GY
BR
RD
1
1
2
2
3
3
4
4
A
B
C
D
Wiring Diagram ENGINE1
      !"
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