Sharp AR-M351U / AR-M451U (serv.man21) Service Manual ▷ View online
AR-M351U/M451U, AR-M355U/M455U ELECTRICAL SECTION 13 - 16
Engine
(5/5)
PCU
PWB
GND2
+24V2
ADMEN1\
+5V3
GND2
ADMCK2\
MPFC\
ADMEN2\
MPFS\
DGS\
APOD
APID
APPD2
APPD1
MPWS
MPF SET
DSW-D
MPED
MSS\
VAREF
ADU SET
B30B-PHDSS-B
GND2
+24V2
MCPPD
VAREF
GND2
MCLUD
MCPWS
MCPED
MCSPD
MCDRS
MCMCLK\
MCPCL\
MC SET
MCFCL\
MCLUM\
MCM\
MCM-T
+5V2
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
17
18
19
20
21
22
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
17
18
+24V2
MPLD1
23
24
MCSS2
MCSS3
MCSS1
MCSS4
19
20
21
22
CN10
CN12
25
26
(NC)
ADMCK1\
ADU
RXD-DSK\
2
17
GND2
RES-FIN2
FGS-FIN\
13
DCPR\
RXD-FIN1\
DTR-FIN2\
10
22
7
FM1\
DSR-DSK\
4
19
B22B-PADRS(RED)
TRC-DSK\
1
15
TXD-FIN1
TXD-FIN2
12
DSR-FIN2\
9
21
DSR-FIN1\
6
DTR-DSK\
3
18
GND2
DTR-FIN1\
TXD-DSK
16
14
+24V2
RXD-FIN2\
11
RES-FIN1
8
RES-DSK
CN11
5
20
23
24
DCPR\
27
28
29
30
ADUFM\
MULTICS
(NC)
ADM H/L
MPLS2
MPLS1
MCPFS\
DESK
B24B-PADES(BULE)
AR-M351U/M451U, AR-M355U/M455U ELECTRICAL SECTION 13 - 17
OPTION (1/1)
8
3
9
4
7
SMP-11V-BC
10
5
6
11
7
2
3
9
SMR-11V-B
4
10
5
8
1
2
11
6
SMP-18V-NC
SMR-18V-N
1
8
3
9
4
7
10
5
6
11
7
2
3
9
4
10
5
8
1
2
11
6
1
12
13
14
15
16
17
18
12
13
14
15
16
17
18
8
3
9
4
7
ELR-12V
10
5
6
11
7
2
3
9
ELP-12V
4
10
5
8
1
2
11
6
1
12
12
Power I/F PWB UN
OPTION I/F UN
AR-D27,28
AR-FN6,MS1
RES_FIN2
GND2
+24V_F
RXD_FIN2
+5V
F-GND
P-GND
S-GND
DTR_FIN2/
DSR_FIN2/
TXD_FIN2
FGS_FIN/
+24V_F
+24V_F
P-GND
P_GND
AR-FN7
GND
GND
+5VOPT
+24V4
GND
PADP-22V-1-R
CNA
VHR-5N / B5P-VH
SRA-21T-3
1
2
3
4
5
6
7
8
9
10
11
12
17
16
15
14
13
18
S_GND
(N.C)
SRA-21T-4
2
ELP-04NV
4
+5VOPT
GND
1
+24V4
GND
3
+5VOPT
GND
ELR-04V
2
1
GND
3
4
+24V4
Main body
RXD_DSK/
TXD_DSK
S-GND
GND2
+5V
P-GND
6
+24V_D
TRC_DSK
RES_DSK
DSR_DSK/
DTR_DSK/
5
4
3
2
1
11
10
9
8
7
DSR_FIN1/
DTR_FIN1/
+5V
RXD_FIN1/
RES_FIN1
P-GND
S-GND
TXD_FIN1
GND2
+24V_F
+24V_F
F-GND
1
12
11
10
9
8
7
6
5
4
3
2
B22B-PADRS
6
TXD_DSK
5
14
FGS_FIN/
RXD_FIN2/
(N.C)
2
(N.C)
11
7
16
12
19
3
GND2
18
RES_FIN1
DTR_FIN2/
21
DTR_DSK/
10
DSR_DSK/
4
13
GND2
DSR_FIN1/
15
CN11
9
(N.C)
RES_FIN2
TXD_FIN2
20
DTR_FIN1/
RES_DSK
PCU PWB
1
TXD_FIN1
RXD_DSK/
17
DSR_FIN2/
8
RXD_FIN1/
TRC_DSK/
22
B22B-PADRS / PADP-22V-1-R
CNB
14
S-GND
5
S-GND
GND
+5V
+24V_D
GND
GND
2
21
P-GND
P-GND
8
+24V_F
15
11
20
S-GND
17
4
16
19
+5V
S-GND
+24V_F
GND
P-GND
10
3
7
+24V_F
P-GND
6
22
1
13
+5V
P-GND
12
+24V_F
+24V_F
18
9
4
1
5
2
3
+24V4
2
CN6
B5P-VH
DCPS
GND
5
1
VHR-5N
4
GND
3
+5VOPT
GND
AR-M351U/M451U, AR-M355U/M455U ELECTRICAL SECTION 13 - 18
DH-LINE (OPTION) (1/1)
2
(NC)
DH-L
2
1
CN-A
1
DH-N(SCN)
3
CN-C
(NC)
DH-L(DHSW)
B2P3-VH
SCN
2
DH-L(DHSW)
DH-L
PS-250
PS-250-R
BK
BK
CN-F
(NC)
3
B2P3-VH(BL)
1
BK
GR/YL
GR/YL
BK
WH
WH
DH-N
ELP-02V+ELR-02VF
2
1
DH-L
2
1
DESK
DH_DH1
WH
BK
ELP-02V+ELR-02V
DH-N(SCN)
2
1
DH-L(DHSW)
1
2
ELR-02VF+ELP-02V
DH-N(SCN)
WH
BK
2
1
2
1
DH-L(DHSW)
WH
DH_DH2
BK
SRA-21T-4
SRA-21T-4
AC CABLE
BK
WH
DH-N
3
B2P3-VH(BK)
DH-HEATER
PWB
Main Body
SW1
AR-M351U/M451U, AR-M355U/M455U ELECTRICAL SECTION 13 - 19
3. Signal name list
Signal name
Name
Function/Operation
Connector level
Connector
No.
Pin
NO.
PWB
name
Remark
L
H
+24V_PR
Power relay 24V
Power relay 24V
—
—
14
2
PCU
+5VLD
5V power for laser diode
5V power for laser diode
—
—
16
31
PCU
ADUSET
ADU detection signal
ADU detection
With ADU
Without ADU
12
22
PCU
APIND
ADU paper entry sensor
signal
signal
ADU paper entry detection
Paper pass
—
12
14
PCU
APOD
ADU paper exit sensor
signal
signal
Paper exit detection
Paper present
12
15
PCU
APPD1
ADU paper transport
sensor signal 1
sensor signal 1
ADU upper-stream section
paper pass detection
paper pass detection
Paper pass
—
12
17
PCU
APPD2
ADU paper transport
sensor signal 2
sensor signal 2
ADU lower-stream section
paper pass detection
paper pass detection
Paper pass
—
12
16
PCU
BUP_PR
Power save mode relay
signal
signal
Changeover between the
power save mode and the
normal power mode
power save mode and the
normal power mode
—
—
2
14
12
14
14
PCU
CRUCLK
Communication CLK
CRUM communication
CLK
CLK
—
—
5
3
PCU
CRUSDA
Communication data/
address signal
address signal
CRUM communication
data/address signal
data/address signal
—
—
5
4
PCU
CSS
Paper tray insertion
detection signal
detection signal
Paper tray insertion
detection
detection
With tray
Without tray
13
14
PCU
DMCLK
OPC drum motor rotating
speed control (CLK) signal
speed control (CLK) signal
OPC drum motor rotating
speed control
speed control
—
—
6
7
PCU
DM-T
OPC drum motor lock
detection signal
detection signal
OPC drum motor lock
detection
detection
Rotation
Stop/Lock
6
6
PCU
DSR_PCU
Serial communication
control signal
control signal
Send control signal (serial
communication)
communication)
—
—
2
25
PCU
DSW-D
ADU door sensor signal
Door open/close detection
Door open
Door close
12
21
PCU
DSW-F
Front door open/close
detection signal
detection signal
Front door open/close
detection
detection
Front door
open
Front door
close
4
6
6
9
9
6
6
9
9
15
32
1
2
1
2
1
2
1
2
1
DSW-L
Left door open/close
detection signal
detection signal
Left door open/close
detection
detection
Left door open
Left door
close
4
4
4
27
28
28
PCU
DTR_PCU
Control signal for serial
communication
communication
Receive control signal
(Serial communication)
(Serial communication)
—
—
2
27
PCU
DVCH1
DV unit identification
signal 1
signal 1
Installation
acknowledgment
acknowledgment
—
—
8
1
PCU
DVCH2
DV unit identification
signal 2
signal 2
Installation
acknowledgment
acknowledgment
—
—
8
2
PCU
DVCH3
DV unit identification
signal 3
signal 3
Installation
acknowledgment
acknowledgment
—
—
8
3
PCU
FW
AC power full wave signal Power monitor
—
—
14
1
PCU
FWP-PCU
Flash write protect signal
Flash write protect
—
—
2
29
PCU
GND2_Tnin
GND
GND
5
1
PCU
HLCNT1
Fusing roller center
section heater lamp
control signal
section heater lamp
control signal
Fusing roller center
section heating control
section heating control
OFF
ON
14
5
PCU
HLCNT2
Fusing roller both sides
heater lamp control signal
heater lamp control signal
Fusing roller both sides
heating control
heating control
OFF
ON
14
6
PCU
HLPRout
Fusing heater lamp power
relay control signal
relay control signal
Fusing heater lamp power
relay control
relay control
Relay OFF
Relay ON
14
3
PCU
HSYNC
Horizontal sync signal
Horizontal sync
—
—
2
15
PCU
HUS-DV
Development humidity
sensor
sensor
Humidity detection around
the developing unit
the developing unit
—
—
8
11
PCU
LSU_S/H
Laser beam horizontal
sync signal
sync signal
Laser beam horizontal
position timing control
position timing control
—
—
16
8
PCU
LUD
Paper tray upper limit
detection signal
detection signal
Paper tray upper limit
detection
detection
—
Upper limit
13
9
PCU
LUMA
Paper tray lift-up motor
control signal
control signal
Paper tray lift-up control
Stop
Up
13
20
PCU
LUMB
Paper tray lift-up motor
control signal
control signal
Paper tray lift-up control
Stop
Up
13
18
PCU
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