Read Sharp AR-FN1 (serv.man9) Service Manual online
(2) Transfer motor error
(3) Elevator and off-set moter error
2
YES
NO
YES
NO
NO
YES
YES
NO
YES
NO
YES
NO
Is load on motor
shaft normal?
Is motor winding
(between U, V, and W)
shorted?
Is harness
connected normally?
Motor rotates
even slightly?
Is motor
encoder output
normal?
Check main PWB and
replace if necessary.
Check mechanical load
and driving system.
Remove foreign matter.
Replace motor.
Connect harness
properly.
Is voltage
applied to motor
connector?
Check motor and
replace if necessary.
3
NO
YES
NO
YES
YES
NO
YES
NO
NO
YES
NO
YES
NO
YES
Is fuse blown out?
Is load on motor
shaft normal?
Is motor winding
shorted?
Is harness
connected normally?
Motor rotates
even slightly?
Is motor
encoder sensor output
normal?
Check main PWB and
replace if necessary.
Replace fuse.
Check mechanical load
and driving system.
Remove foreign matter.
Replace motor.
Connect harness
properly.
Is voltage
applied on motor
connector?
Check motor and
replace if necessary.
Replace sensor
mounting and replace
if necessary.
Check harness and
replace if necessary.
8 – 3
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