Read Sharp AR-M351U / AR-M451U (serv.man21) Service Manual online
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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