6. Self Diagnosis & Trouble Shooting
6-6. When Power is not applied
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Is FUSE on PCB
Down?
Replace Fuse AC 250V 6.3A
YES
IS DC 13.2V applied
to C121?
NO
YES
NO
IS DC 15V applied to
C108?
YES
NO
[Caution]
There is Over AC 115V and DC
310V at the Inverter PCB Power
Circuit. So,be cautious when
repairing the unit or measuring
values..
- To check the Inverter PCB, refer to the
Operation and'Refer' sections in this
manual
Is DC 300V
applied between both
ends of BD1+,-?
Replace the Inverter PCB
YES
NO
Replace the Inverter PCB
Replace REG1(7815)
188
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