Read Sharp MX-M350N / MX-M350U / MX-M450N / MX-M450U (serv.man6) Service Manual online
MX-M350/M450 N/U ELECTRICAL SECTION 13 - 5
Engine (1/6)
PCU
PWB
BOARD to BOARD
D5
D4
KEY2
LED3\
+5V2
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
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
CN3
41
42
43
44
45
46
47
48
49
50
23
GND2
+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
+5V2
24
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
LSU
GND2
8
+24V1
+24V1
PMCLK\
START\
GND2
S11B-PH-K-S
LSU UNIT
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
SYNC\
GND2
1
2
3
4
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
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
/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
S08B-PASK-2
24FMN-BIRK-A
BR
LB
BL
BR
BR
GY
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
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
CNT-MON
4
5
+12V_FAN
CFM-PWM
CFM-PWM
HDD-MON
CFM-PWM
3
2
1
FM_HDD
GND2
4
CNT-MON
1
2
3
CFM-PWM
4
GND2
FM_CNT
+12V_FAN
7
8
PL
BR
GY
BR
PL
3
TEST3
TEST2
31
32
2
1
TEST2
TEST3
GY
BR
BR
BR
LSU_S/H
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
CN3
CN1
CN2
CN1
Cadle
FFC
+12V_FAN
POWER SOURCE
SECTION
1
2
3
4
1
2
3
4
PHNR-04-H+BU04P-TR-P-H
PHNR-04-H+BU04P-TR-P-H
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