AR-M351U, AR-M451U (serv.man21). Electrical — Sharp Copying Equipment Service Manual (repair manual). Page 8

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AR-M351U/M451U, AR-M355U/M455U  ELECTRICAL SECTION  13 - 8
Engine
 (1/5)
PCU
PWB
BOARD to BOARD
40
38
TX25-80P-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
41
42
43
44
45
46
47
48
49
50
+3.3V2
+3.3V2
+3.3V2
GND
+12V2
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
CN1
(NC)
(NC)
+3.3V2
GND
HDD-VCC
PCU_VCCW
(NC)
GND
HDD-VCC
GND
+5V1
GND
HSYNC
GND
GND
+5V1
+5V1
+5V2
GND
GND
VIDEO1
VIDEO0
GND
GND
+12V_FAN
+12V2
GND
+12V1
DTR_PCU
DSR_PCU
TXD_PCU
DCCNT
BUR_PR
(NC)
RES_PCU
MSW_MON
RXD_PCU
POF
TX24-80R-LT-H1
+3.3V2
+3.3V2
+3.3V2
GND
+12V2
(NC)
(NC)
+3.3V2
GND
HDD-VCC
PCU_VCCW
(NC)
GND
HDD-VCC
GND
+5V1
GND
HSYNC
GND
GND
+5V1
+5V1
+5V2
GND
VIDEO1
GND
GND
+12V_FAN
+12V2
GND
+12V1
DTR_PCU
DSR_PCU
TXD_PCU
DCCNT
BUR_PR
(NC)
RES_PCU
MSW_MON
RXD_PCU
POF
HDD-MON
3
2
1
CN4
GND2
CN2
26
GND
13
BUR_PR
MSW_MON
10
19
GND
16
25
DTR_PCU
22
28
9
RES_PCU
15
GND
DSR_PCU
12
21 RXD_PCU
18
27
GND
24
30
DTEN
GND
11 GND2
GND
8
17
HSYNC
TXD_PCU
14
23
POF
20
29
VIDEO1
VIDEO0
GND
SLD30R-1
+12V2
PCU_VCCW
21
18
15
9
12
6
3
23
20
17
14
8
11
5
2
22
19
16
13
7
10
4
1
CN2
GND
GND
VIDEO1
RES_PCU
GND
DSR_PCU
HSYNC
BUR_PR
TXD_PCU
MSW_MON
GND
GND2
VIDEO0
GND
DTEN
RXD_PCU
GND
GND
+5V1
+5V2
SLD30R-1
GND
5
7
6
3
+5V1
+5V2
+5V2
+5V2
+5V2
25
28
26
24
27
+5V2
+5V2
+5V2
+12V1
GND
DTEN
GND
GND
DTEN
GND
+5V2
GND
+24V3
+24V3
+5V2
GND
+24V3
+24V3
/V
G
V
L
G
/L
/V
/S
G
+
/P
+
G
/R
/S
T
G
/V
V
G
+
G
+
+
G
G
G
G
G
G
S08B-PASK-2
BR
GY
BR
71
69
56
55
54
53
52
64
63
62
61
60
59
58
57
70
68
67
66
65
MOTHER
BOARD
 PWB
GND
GND
CNTFAN_MON
PWM
GND
74
73
72
80
78
77
76
75
GND
+12V2
+12V2
+12V_FAN
GND
+3.3V2
GND
+3.3V2
+3.3V2
+5V1
GND
+24V3
GND
+12V1
+5V2
+5V1
+5V1
GND
HDD-VCC
GND
+3.3V2
HDD-VCC
69
71
57
56
55
54
53
52
51
64
63
62
61
60
59
58
75
74
73
72
70
67
66
80
78
77
76
MFP
CONTROL
BOX
GND
+12V_FAN
GND
GND
CNTFAN_MON
GND
GND
+12V2
+12V2
+3.3V2
+3.3V2
+3.3V2
+5V1
+5V1
GND
GND
+5V2
+24V3
+24V3
GND
+12V1
+5V2
HDD-VCC
HDD-VCC
GND
+3.3V2
HDDFAN_MON
79
51
+5V2
+24V3
68
79
GND
VIDEO0
HDDFAN_MON
PWM
GND
+5V1
65
6
GND2
+12V_FAN
HDD-MON
4
5
+12V_FAN
CFM-PWM
CFM-PWM
HDD-MON
CFM-PWM
3
2
1
FM_HDD
GND2
4 +12V_FAN
HDD-MON
1
2
3 CFM-PWM
4
GND2
FM_CNT
+12V_FAN
7
8
PL
BR
GY
BR
PL
T
T
4
2
1
+5V2
+12V1
DTR_PCU
30
29
PCU_VCCW
+12V2
+5V2
POF
GND
40
1
RK-H401SD-0190
38
9
8
7
6
5
4
3
2
17
16
15
14
13
12
11
10
25
24
23
22
21
20
19
18
33
32
31
30
29
28
27
26
39
37
36
35
34
GND2
/DIOR
DMAREQ
GND2
/DIOW
GND2
GND2
/RESET
GND2
/DMACK
DD6
DD8
DD7
CSEL
IORDY
/ICCS10
DD4
DD10
DD5
INTRQ
/PDIAG/CBLID
DA1
DD14
DD1
DD13
DD2
KEY
GND2
DD15
DD0
GND2
/DASP
DD12
DD3
DD11
/CS0
DA2
DA0
/CS1
DD9
1
40
39
3
2 GND2
/RESET
/DASP
DD7
HDD
GND2
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