Read Sharp AR-M620 (serv.man25) Service Manual online
AR-M550/M620 SIGNAL NAME LIST 14 - 3
DGS
Paper exit gate solenoid
control signal
control signal
Paper exit gate control
Duplex Simplex
7
27
PCU
DL
Discharge lamp control signal
Discharge lamp control
ON
OFF
8
9
PCU
DM
OPC drum motor rotating
speed control signal (ON/OFF)
speed control signal (ON/OFF)
OPS drum motor ON/OFF
ON
OFF
6
5
PCU
DMCLK
OPC drum motor rotating
speed control (CLK) signal
speed control (CLK) signal
OPC drum motor RPM control
—
—
6
7
PCU
DMS
OPC drum marking sensor
signal
signal
OPC drum mark detection
—
—
8
4
PCU
DMS-LED
OPC drum marking sensor
LED control signal
LED control signal
OPC drum marking LED light
quantity control
quantity control
—
—
8
2
PCU
DM-T
OPC drum motor lock detection
signal
signal
OPC drum motor lock detection
Rotation
Stop/Lock
6
9
PCU
DSKPFC1
Paper feed tray 3/4 paper
transport clutch control signal 1
transport clutch control signal 1
Paper feed tray 3/4 paper
transport control
transport control
Paper
transport
—
16
26
PCU
DSKPFC2
Paper feed tray 3/4 paper
transport clutch control signal 2
transport clutch control signal 2
Paper feed tray 3/4 paper
transport control
transport control
Paper
transport
—
17
8
PCU
DSR_FIN
Serial communication control
signal
signal
Receive control
—
—
17
17
PCU
DSR_LCC
Serial communication control
signal
signal
Receive control
—
—
18
9
PCU
DSR_SCN
Serial I/F send enable (MFP)
Receive control
—
—
9
46
SCN
DSW-ADU
Duplex (ADU) cover open/
close detection signal
close detection signal
Duplex (ADU) cover open/
close detection
close detection
Duplex
(ADU) door
open
Duplex
(ADU) door
close
7
25
PCU
DSW-DSK
Left door open/close detection
signal (Desk section)
signal (Desk section)
Left door open/close detection
(Desk section)
(Desk section)
Desk left
door open
Desk left
door close
17
28
PCU
DSW-F_HV
DC low voltage power (+24V)
line signal for generating high
voltage
line signal for generating high
voltage
High voltage power source
(+24V)
(+24V)
—
High
voltage
available
15
1
PCU
DSW-F
Front door open/close
detection signal
detection signal
Front door open/close
detection
detection
Left door
open or
Front door
open
Left door
close
and Front
door close
door close
2
28
PCU
DSW-L
Left door open/close detection
signal
signal
Left door open/close detection
Left door
open
Left door
close
7
32
PCU
DSW-R
Manual feed open/close
detection signal
detection signal
Manual feed open/close
detection
detection
Left door
open or
Front door
open or
manual unit
pull-out
Left door
close
and Front
door close
door close
and manual
unit
insertion
13
26
PCU
DTR_FIN
Serial communication control
signal
signal
Send control
—
—
17
15
PCU
DTR_LCC
Serial communication control
signal
signal
Send control
—
—
18
7
PCU
DTR_SCN
Serial I/F receive enable signal
(MFP)
(MFP)
Send control
—
—
9
9
SCN
DVCH1
DV unit identification signal 1
Detection of installation
12
6
PCU
DVM
Developing motor control
signal
signal
Developing motor ON/OFF
ON
OFF
6
6
PCU
DVMCLK
Developing motor rotating
speed control (CLK) signal
speed control (CLK) signal
Developing motor control RPM
control
control
—
—
6
8
PCU
DVM-T
Developing motor lock
detection signal
detection signal
Developing motor lock
detection
detection
Rotation
Stop/Lock
6
10
PCU
DVPWM
Developing bias voltage control
signal (PWM)
signal (PWM)
Developing bias PWM control
—
—
15
14
PCU
DVREM
Developing bias control (ON/
OFF) signal
OFF) signal
Developing bias ON/OFF
ON
OFF
15
15
PCU
F0
Operation panel LED matrix
signal 0
signal 0
Switching
—
—
1
78
SCN
F1
Operation panel LED matrix
signal 1
signal 1
Switching
—
—
1
80
SCN
Signal name
Name
Function/Operation
Connector level
Connector
No.
Pin No.
PWB
name
Remark
"L"
"H"
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