“Confidential, Do Not Duplicate without written authorization from NEC.”
4-25
TROUBLESHOOTING
Interlock Fail
Yes
No
Is there no problem in external control?
(There is occasionally interference with an external
interlock.)
Normal operation
Look for any damage or the drawing out of the
connector and follow the steps of replacement
work in the order specified below. Replace them,
as required.
PEDE-A PWB
CPU PWB
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