Sharp AR-M351U / AR-M451U (serv.man21) Service Manual ▷ View online
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
AR-M351U/M451U, AR-M355U/M455U ELECTRICAL SECTION 13 - 20
MCLUD
MP tray upper limit sensor
signal
signal
MP tray upper limit
detection
detection
—
Upper limit
10
9
PCU
MCM_T
Multi-purpose paper feed
tray transport motor lock
signal
tray transport motor lock
signal
Multi-purpose paper feed
tray transport motor lock
detection
tray transport motor lock
detection
Rotation
Stop/Lock
10
20
PCU
MCMCLK
Multi-purpose paper feed
tray transport motor clock
signal
tray transport motor clock
signal
Multi-purpose paper feed
tray transport motor
rotating speed control
tray transport motor
rotating speed control
—
—
10
21
PCU
MCPED
MP tray paper empty
sensor signal
sensor signal
MP tray paper empty
detection
detection
Paper present
—
10
8
PCU
MCPWS
MP tray width sensor
detection
detection
MP tray paper width
detection
detection
—
—
10
10
PCU
MCSET
10
16
PCU
MCSPD
MP tray paper remaining
quantity sensor signal
quantity sensor signal
MP tray paper remaining
quantity detection
quantity detection
When pressed
—
10
15
PCU
MCSS1
MP tray rear edge sensor
1 signal
1 signal
MP tray rear edge size
detection
detection
When pressed
—
10
11
PCU
MCSS2
MP tray rear edge sensor
2 signal
2 signal
MP tray rear edge size
detection
detection
When pressed
—
10
12
PCU
MCSS3
MP tray rear edge sensor
3 signal
3 signal
MP tray rear edge size
detection
detection
When pressed
—
10
13
PCU
MCSS4
MP tray rear edge sensor
4 signal
4 signal
MP tray rear edge size
detection
detection
When pressed
—
10
14
PCU
MHV-T
Main charger trouble
detection signal
detection signal
Main charger trouble
detection
detection
Trouble/
Without MHV
Normal
15
13
PCU
MM-T
Main motor lock detection
signal
signal
Main motor lock detection
Rotation
Stop/Lock
9
8
PCU
MPED
ADU manual feed paper
sensor signal
sensor signal
Manual feed tray paper
empty detection
empty detection
Paper present
—
12
19
PCU
MPFSET
Manual feed unit detection
signal
signal
Manual feed unit detection
Provided
Not provided
12
23
PCU
MPLD1
Manual feed paper length
sensor signal
sensor signal
Manual paper feed tray
paper length detection
paper length detection
—
Paper
present
12
18
PCU
MPLS1
ADU tray pull-out sensor
signal
signal
Manual feed extension
tray pull-out detection
tray pull-out detection
—
Pull out
12
28
PCU
MPLS2
ADU tray storing sensor
signal
signal
Manual feed extension
tray storing detection
tray storing detection
—
Storing
12
27
PCU
MPWS
ADU manual feed paper
width detection signal
width detection signal
Manual feed paper width
detection
detection
—
—
12
20
PCU
PAGE
Page signal
Print timing control to the
controller (output for every
page)
controller (output for every
page)
—
—
2
13
PCU
PED
Paper tray empty sensor
signal
signal
Paper empty detection
—
Paper empty
13
3
PCU
PMCLK
Polygon mirror motor drive
clock signal
clock signal
Polygon mirror motor drive
clock
clock
—
—
16
27
PCU
POD1
Paper exit detection 1
signal
signal
Detection of paper exit
from the fusing section
from the fusing section
Paper pass
—
4
4
PCU
POD2
Paper exit detection 2
signal
signal
Paper exit paper pass
detection
detection
Paper pass
—
4
10
PCU
POD3
Paper exit detection 3
signal
signal
Detection of paper exit to
the upper section paper
exit tray (Full detection)
the upper section paper
exit tray (Full detection)
Paper pass
(Full detection)
—
4
16
PCU
RES_DSK
Desk reset signal
Desk reset
Operation
enable
Reset
11
17
PCU
RES_FIN1
Finisher reset signal
Finisher reset
Operation
enable
Reset
11
5
PCU
RES_FIN2
Finisher reset signal
Finisher reset
Operation
enable
Reset
11
11
PCU
RES_PCU
PCU reset signal
The controller resets the
PCU.
PCU.
Operation
enable
Reset
2
17
PCU
RTH1
Fusing roller temperature
detection signal
detection signal
Fusing roller temperature
detection (Center section)
detection (Center section)
—
—
14
7
PCU
RTH2
Fusing roller temperature
detection signal
detection signal
Fusing roller temperature
detection (Edge section)
detection (Edge section)
—
—
14
9
PCU
Signal name
Name
Function/Operation
Connector level
Connector
No.
Pin
NO.
PWB
name
Remark
L
H
AR-M351U/M451U, AR-M355U/M455U ELECTRICAL SECTION 13 - 21
RXD_DSK
Serial I/F data (DESK)
Serial I/F data (DESK-
PCU PWB)
PCU PWB)
—
—
11
14
PCU
RXD_FIN1
Serial I/F data
(FINISHER)
(FINISHER)
Serial I/F data
(FINISHER-PCU PWB)
(FINISHER-PCU PWB)
—
—
11
2
PCU
RXD_FIN2
Serial I/F data
(FINISHER)
(FINISHER)
Serial I/F data
(FINISHER-PCU PWB)
(FINISHER-PCU PWB)
—
—
11
8
PCU
RXD_PCU
Serial communication
send data signal
send data signal
Send data to the controller
—
—
2
21
PCU
TCS
Toner concentration
detection signal
detection signal
Toner concentration
detection
detection
—
—
8
7
PCU
TH-DV
Developing temperature
sensor
sensor
Temperature detection
around the developing unit
around the developing unit
—
—
8
4
PCU
THVin
N.C.
N.C.
—
—
15
14
TMA
Toner motor control signal Toner motor ON/OFF
control
—
—
7
1
PCU
TMB
Toner motor control signal Toner motor ON/OFF
control
—
—
7
2
PCU
TXD_DSK
Serial I/F data (DESK)
Serial I/F data (PCU PWB-
DESK)
DESK)
—
—
11
13
PCU
TXD_FIN1
Serial I/F data
(FINISHER)
(FINISHER)
Serial I/F data (PCU PWB
- FINISHER)
- FINISHER)
—
—
11
1
PCU
TXD_FIN2
Serial I/F data
(FINISHER)
(FINISHER)
Serial I/F data (PCU PWB
- FINISHER)
- FINISHER)
—
—
11
7
PCU
TXD_PCU
Serial communication
receive data signal
receive data signal
Receive data from the
controller
controller
—
—
2
23
PCU
VIDEO
Image signal
Image signal to the LSU
—
—
16
13
PCU
VIDEOin-
Image signal
Image signal from the
controller to the PCU PWB
controller to the PCU PWB
—
—
2
9
PCU
VIDEOin+
Image signal
Image signal from the
controller to the PCU PWB
controller to the PCU PWB
—
—
2
10
PCU
VRB
Laser power control signal Laser power control
—
—
16
9
PCU
XADM_H/L
ADU motor current control
signal
signal
ADU motor current control
—
—
12
25
PCU
XADMCK1
ADU upper transport
motor clock signal
motor clock signal
ADU upper transport
motor rotation speed
control
motor rotation speed
control
—
—
12
8
PCU
XADMCK2
ADU lower transport
motor clock signal
motor clock signal
ADU lower transport
motor rotation speed
control
motor rotation speed
control
—
—
12
10
PCU
XADMEN1
ADU upper transport
motor control signal
motor control signal
ADU upper transport
motor ON/OFF control
motor ON/OFF control
ON OFF
12
7
PCU
XADMEN2
ADU lower transport
motor control signal
motor control signal
ADU lower transport
motor ON/OFF control
motor ON/OFF control
ON OFF
12
9
PCU
XADUFM
ADU cooling fan control
signal
signal
Cooling fan control
ON
OFF
12
26
PCU
XCFM1_PWM Suction fan control signal
Suction fan control
Max. air flow
OFF
13
21
PCU
XCFM2PWM
Ozone exhaust fan control
signal
signal
Ozone exhaust fan control
OFF
ON
4
4
4
15
20
20
PCU
XCPFC
Paper cassette paper feed
clutch control signal
clutch control signal
Paper feed clutch control
Paper
transport
—
13
4
PCU
XDGS
ADU gate solenoid control
signal
signal
Gate select in duplex or
paper exit
paper exit
Duplex
Single
12
13
PCU
XDHVPWM
Separation high voltage
output control signal
output control signal
Separation high voltage
PWM control
PWM control
—
—
15
7
PCU
XDHVREM
Separation high voltage
control signal
control signal
Separation high voltage
ON/OFF control
ON/OFF control
ON OFF
15
4
PCU
XDM
OPC drum motor control
signal (ON/OFF)
signal (ON/OFF)
OPC drum motor ON/OFF
ON
OFF
6
5
PCU
XDSR_DSK
Serial communication
control signal
control signal
Receive control
—
—
11
16
PCU
XDSR_FIN1
Serial communication
control signal
control signal
Receive control
—
—
11
4
PCU
XDSR_FIN2
Serial communication
control signal
control signal
Receive control
—
—
11
10
PCU
XDTR_DSK
Serial communication
control signal
control signal
Send control
—
—
11
15
PCU
Signal name
Name
Function/Operation
Connector level
Connector
No.
Pin
NO.
PWB
name
Remark
L
H
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