AR-M351U, AR-M451U (serv.man21). Electrical — Sharp Copying Equipment Service Manual (repair manual). Page 23

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AR-M351U/M451U, AR-M355U/M455U  ELECTRICAL SECTION  13 - 23
*1: Multi paper feed tray vertical size detection
*2: Options
XSYNC
LSU horizontal sync 
detection signal 
LSU horizontal sync 
detection (BD sensor 
signal)
16
4
PCU
XTHV+PWM
Transfer charger output 
control signal (THV+)
Transfer charger output 
control (PWM control)
15
6
PCU
XTHV-PWM
Transfer charger output 
control signal (THV-)
Transfer charger output 
control (PWM control)
15
9
PCU
XTHVREM
Transfer charger control 
signal (THV)
Transfer charger ON/OFF 
control
ON
OFF
15
12
PCU
XTRC
Paper transport roller 
clutch control signal 
Paper transport roller ON/
OFF control
13
12
PCU
XTRC_DSK
Paper transport timing 
signal
Paper transport timing
11
18
PCU
XVFM1_PWM Cooling fan control signal
Cooling fan control
Max. air flow
OFF 
16
16
23
26
PCU
XVFM2PWM
Heat exhaust fan control 
signal
Heat exhaust fan control 
Max. air flow
OFF
4
22
PCU
XVIDEO
Image signal
Image signal to the LSU
16
14
PCU
Vertical size detection: Connector level
Paper size
Multi paper feed tray 1
M1SS1
M1SS2
M1SS3
M1SS4
AB series
Inch series
China series
Multi paper feed tray 2
M2SS1
M2SS2
M2SS3
M2SS4
1
L
L
H
L
B5
Extra
K16
2
H
L
H
L
A4
A5R
LT
INVR
A4
A5R
3
H
L
L
L
B5R
EX-R
K16R
4
H
H
L
L
A4R
LTR
A4R
5
L
H
L
L
Foolscap
Extra
Foolscap
6
L
H
L
H
B4
LGL
K8
7
L
L
L
H
A3
WLT
0
H
H
H
H
Tray not installed
No.
CV_SIZE3
CV_SIZE2
CV_SIZE1
CV_SIZE0
Paper size
0
0
0
0
0
none
1
0
0
0
1
A3
2
0
0
1
0
A4
3
0
0
1
1
LT
4
0
1
0
0
B4
5
0
1
0
1
LG
6
0
1
1
0
WLT
7
0
1
1
1
INV
8
1
0
0
0
B5
9
1
0
0
1
Extra
10
1
0
1
0
A5
11
1
0
1
1
F4
12
1
1
0
0
A4R
13
1
1
0
1
B5R
14
1
1
1
0
LTR
15
1
1
1
1
A5R
Signal name 
Name
Function/Operation
Connector level
Connector 
No.
Pin 
NO.
PWB 
name
Remark
L
H
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