Read Sharp AR-LC5 (serv.man3) Service Manual online
AR-LC5 TROUBLESHOOTING 9 - 2
B. Lift motor error
C. Transport motor error
D. Sensor error
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
Y
N
B
D
Is fuse blown out?
Is load on motor
shaft normal?
Is upper limit
sw on paper feed
UN turned on?
Is harness
connected properly?
Does motor rotate
even slightly?
Is motor
encoder sensor
output normal?
Replace fuse.
Check mechanical load
and driving system, and
remove any foreign matter.
Lower tray until upper
limit switch turns off.
Connect harness properly.
Check harness and if
necessary replace.
Is voltage
applied to motor
connector?
Check and if necessary
replace motor.
Check and if necessary
replace control PWB.
C
N
Y
N
Y
N
Y
N
Y
Y
N
Is load on motor
shaft normal?
Is harness
connected properly?
Does motor rotate
even slightly?
Is motor encoder
output normal?
Is voltage applied to
motor connector?
Check and if necessary
replace motor.
Check and if necessary
replace control PWB.
Connect harness properly.
Check and if necessary
replace harness.
Check mechanical load
and driving system, and
remove any foreign matter.
D
N
Y
Check for
sensor mounting.
Is harness connected
properly?
Replace control PWB.
Check mounting and if
necessary replace harness.
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