NEC NC1600C - Page 113

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4-18
TROUBLESHOOTING
DLP PGOOD Fail
Yes
No
Is there any drawing out of the connector on the
PJDIV PWB?
Reinsert the associated connectors.
Yes
No
Is there any drawing out of the connector on the
CPU PWB?
Reinsert the associated connector.
Yes
No
Are there no connector disconnections on the
GPSU and no such abnormalities?
Reinsert the associated connector.
Yes
No
Is the GND potential available at POPSC#5 on
the PJDIV PWB?
Replace the CPU PWB.
Replace the PJDIV PWB.
If repair servicing is still needed at this
stage, replace the GPSU.