AR-M351U, AR-M451U (serv.man21). Electrical — Sharp Copying Equipment Service Manual (repair manual). Page 9

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AR-M351U/M451U, AR-M355U/M455U  ELECTRICAL SECTION  13 - 9
U
B
D5
D4
KEY2
LED3\
+5V1
EN
GND2
KEY4
D1
LED1\
KEY3
D0
D6
LED2\
D2
KEY6
KEY5
D7
KEY1
R/W
RS
D3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
CN3
23
GND2
+5V1
24
LSU
GND2
8
+24V1
+24V1
PMCLK\
START\
GND2
S11B-PH-K-S
LSU UNIT
CN2
CN1
VFM1\
1 GND2
+24V1
1
3
2
3
2
PHNR-03-H+BU03P-TR-P-H
PMCLK
3 START\
READY
PHR-5
1
2
5
4 GND2
PM
+24V1
VFM1
+24V1
VFM1\
GND2
VFM1\
+5V2
GND2
4
2
GND2
1
3
S4B-PH-K-S
CN3
SYNC\
GND2
1
2
3
4
CN1
SYNC\
GND2
1 GND2
+24V1
3
2
3
2
1
PHNR-03-H+BU03P-TR-P-H
VFM1\
11
1
2
3
4
5
6
7
9
10
RD
RD
RD
BR
BR
BR
BR
BR
GY
GY
GY
RD
RD
BR
BR
GY
GY
VFM1
POWER SOURCE
SECTION
B4B-PH-K-S
1
2
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
S32B-PHDSS-B
/VFM1
GND2
VIDEO
LSU_S/H
GND2
/LDON
/VIDEO
/SYNC
GND2
3
4
+5V2
/PMCLK
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
CN16
+5V LD
GND2
23
24
/READY
/START
TEST
25
GND2
S32B-PHDSS-B
/VFM1
26
VRB
GND2
+5V2
GND2
+24V1
+24V1
GND2
GND2
27
28
29
30
31
32
GND2
GND2
GND2
GND2
45 sheets (35 sheets)
/START
/PMCLK
+5V2
GND2
/SYNC
GND2
/VIDEO
/LDON
GND2
+24V1
TEST
VIDEO
GND2
/VFM1
GND2
GND2
+5V LD
GND2
GND2
GND2
GND2
GND2
VRB
GND2
GND2
+24V1
/READY
+5V2
/VFM1
10
9
8
7
6
5
4
READY(READY\)
45 sheets (35 sheets)
+5V2
BD
24FMN-BIRK-A
BR
LB
BL
BR
GY
GY
GY
GY
GY
GY
GY
GY
GY
GY
GY
GY
BR
BR
BR
BR
LBR
BR
BR
BR
BR
BR
BR
BL
BL
BL
RD
RD
3
1
TEST3
TEST2
31
32
2
1
TEST2
TEST3
GY
BR
BR
BR
LSU_S/H
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