“Confidential, Do Not Duplicate without written authorization from NEC.”
4-20
TROUBLESHOOTING
DLP Ack Fail
Yes
No
Is board fitting sufficient in the TI Chest?
Reinsert the associated connectors.
No
No
Are the TP voltages normal at the DIV PWB, as
specified below?
TP8005: Normal value 3.4V ± 0.05V.
TP8004: Normal value 5.05V ± 0.05V.
TP8003: Normal value 12.05V ± 0.05V.
Adjust the VR of GPSU to secure a
normal value. Replace the GPSU, as
required.
Follow the steps of replacement work in the
order specified below.
PJDIV PWB
CPU PWB
GPSU
Interface board
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