Check the connection.
11 / 11
[Flow Chart for Troubleshooting]
Check the items from top of the following list.
(Description of the item is referred to Circuit diagram in
Fig. D-1
.
After taking corrective action, be sure to re-check by following the chart from the start again.
Replace Controller A.
Probable Cause
Corrective
Action
How to follow arrows:
No
Yes
Symptom
It reads 0.9V-1.3V on Tester.
(• See the previous page for how to
check Controller using Tester.
• Proceed to Yes if Tester is not
available.)
Disconnection of Lead wires
Check the Lead wires,
or replace the Lead wires.
Check the Lead wires,
or replace the Lead wires.
Controller A is broken.
Replace Controller A.
Sub controller is broken.
Replace Sub controller.
LED lights up.
(Check whether LED lights up
by operating Switch for LED.)
Replace Controller A.
Controller A is broken.
Replace Controller B.
Replace Sub controller.
Sub controller is broken.
Controller B is broken.
Disconnection of Lead wires
Loose connection of
Connectors
Check the connection.
Scratches on
Rotor core
Replace Rotor.
Replace Stator.
Stator is broken.
Rotor is broken.
Check the Lead wires,
or replace the Lead wires.
Loose connection of
Connectors
Check the connection.
Disconnection of Lead wires
Motor can be
stopped.
The machine
does not have
any trouble.
Controller A is broken.
Loose connection of
Connectors
Replace the broken one(s).
Either Terminal A or B
or both is broken.
Motor rotates.
(If you get
occasional success
in switching-on
out of 10 trials,
proceed to No.)
Replace Controller A.
Controller A is broken.
Replace Sub controller.
Sub controller is broken.
Replace Controller A.
The machine shows the same symptom
in spite of the corrective actions shown
above.
