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(4) Stepping motor error
4
Is load on motor
shaft normal?
YES
Is motor winding
shorted?
NO
Is harness connected
normally?
YES
Check main PWB and
replace if necessary.
(5) Sensor error
5
Is sensor
mounted properly?
Is harness connected
properly?
YES
Replace main PWB.
Check mechanical
NO
load and driving system.
Remove foreign matter.
YES
Replace motor.
NO
Connect harness
properly.
Check sensor mounting
NO
and harness and replace
if necessary.
(6) Clutch and solenoid error
6
Is each
load properly
mounted?
YES
Conduction
between coils of each
load?
YES
Conduction
between connectors and
terminals?
YES
Replace main PWB.
8 – 4
AR-FN3
NO
Check mounting and
replace if necessary.
NO
Replace clutch or
solenoid.
NO
Check harness and
replace if necessary.
8/19/1999
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