Read Sharp AR-M550 (serv.man21) Service Manual online
AR-M550/M620 SIGNAL NAME LIST 14 - 10
THPS1
Transfer belt contact/
separation home position
sensor 1
separation home position
sensor 1
Transfer belt separation home
position detection 1
position detection 1
—
Contact
7
6
PCU
Not used.
THPS2
Transfer belt contact/
separation home position
sensor 2
separation home position
sensor 2
Transfer belt separation home
position detection 2
position detection 2
—
Contact
7
14
PCU
TH-RA
Machine temperature detection
signal
signal
Machine temperature detection
—
—
21
10
PCU
THV+PWM
Transfer charger output control
signal (THV)
signal (THV)
Transfer charger output control
(PWM control)
(PWM control)
—
—
15
8
PCU
THV+REM
Transfer charger control signal
(THV)
(THV)
Transfer charger ON/OFF
control
control
ON
OFF
15
9
PCU
TLS
Waste toner pipe lock detection
signal
signal
Waste toner pipe lock detection
—
Lock (Tilt)
8
16
PCU
TM1A
Toner motor 1 control signal
Toner motor 1 ON/OFF control
—
—
11
1
PCU
TM1B
Toner motor 1 control signal
Toner motor 1 ON/OFF control
—
—
11
3
PCU
TM2A
Toner motor 2 control signal
Toner motor 2 ON/OFF control
—
—
11
5
PCU
TM2B
Toner motor 2 control signal
Toner motor 2 ON/OFF control
—
—
11
7
PCU
TNCA
Waste toner full detection
signal
signal
Waste toner full detection
—
—
11
12
PCU
Not used.
TRC_LCC
LCC paper feed timing signal
LCC paper feed timing control
(Output from PCU)
(Output from PCU)
—
—
18
13
PCU
TRMA
Transfer roller 15 drive motor
control signal (Phase A)
control signal (Phase A)
Transport roller 15 drive motor
control
control
—
—
10
17
PCU
TRMB
Transfer roller 15 drive motor
control signal (Phase B)
control signal (Phase B)
Transport roller 15 drive motor
control
control
—
—
10
19
PCU
TRMXA
Transfer roller 15 drive motor
control signal (Phase /A)
control signal (Phase /A)
Transport roller 15 drive motor
control
control
—
—
10
18
PCU
TRMXB
Transfer roller 15 drive motor
control signal (Phase /B)
control signal (Phase /B)
Transport roller 15 drive motor
control
control
—
—
10
20
PCU
TSGOUT
Toner den misty sensor gain
control signal
control signal
Toner density sensor gain
control
control
—
—
12
20
PCU
TURM
Transfer separation motor
control signal
control signal
Transfer unit separation control
Stop
Contact/
Release
Release
7
16
PCU
TXD_CCD1
Serial I/F data (CCD)
Serial I/F data (Scanner control
PWB - CCD)
PWB - CCD)
—
—
1
63
SCN
TXD_CCD2
Serial I/F data (CCD)
Serial I/F data (Scanner control
PWB - CCD)
PWB - CCD)
—
—
10
14
SCN
TXD_FIN
Serial I/F data (Finisher)
Serial I/F data (PCU PWB -
Finisher)
Finisher)
—
—
17
11
PCU
TXD_LCC
Serial I/F data (LCC)
aerial I/F data (Controller -
Scanner control PWB)
Scanner control PWB)
—
—
18
3
PCU
TXD_SCN
Serial I/F data (Scanner control
PWB)
PWB)
Serial I/F data (Controller -
Scanner control PWB)
Scanner control PWB)
—
—
9
8
SCN
VCCW_SCN Scanner flash ROM write
protect signal
Scanner flash ROM write
protect
protect
Write
enable
9
10
SCN
VFM-BKL
Exhaust fan motor control
signal (Rear left)
signal (Rear left)
Exhaust fan motor control
signal (O
signal (O
3
exhaust, process
section heat exhaust)
Max. force
of wind
Stop
5
22
PCU
VFM-BKR
Exhaust fan motor control
signal (Rear right)
signal (Rear right)
Exhaust fan motor control
signal (Exhaust, duplex (ADU)
section cooling)
signal (Exhaust, duplex (ADU)
section cooling)
Max. force
of wind
Stop
6
17
PCU
VFM-EX1
Exhaust fan motor control
signal (LSU top plate front
side)
signal (LSU top plate front
side)
Exhaust fan motor control
signal (O
signal (O
3
exhaust, process
section heat exhaust)
Max. force
of wind
Stop
5
4
PCU
VFM-EX2
Exhaust fan motor control
signal (LSU top plate center)
signal (LSU top plate center)
Exhaust fan motor control
signal (O
signal (O
3
exhaust, process
section heat exhaust)
Max. force
of wind
Stop
5
10
PCU
VFM-EX3
Exhaust fan motor control
signal (LSU top plate rear side)
signal (LSU top plate rear side)
Exhaust fan motor control
signal (O
signal (O
3
exhaust, process
section heat exhaust)
Max. force
of wind
Stop
5
16
PCU
VIDEO
Image signal
Image signal to LSU
—
—
20
21
PCU
VIDEOin-
Image signal
Image signal from controller to
PCU PWB
PCU PWB
—
—
9
21
PCU
Signal name
Name
Function/Operation
Connector level
Connector
No.
Pin No.
PWB
name
Remark
"L"
"H"
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