NEC NC1600C Service Manual page 115

DLP Ack Fail
Is board fitting sufficient in the TI Chest?
Yes
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.
No
Follow the steps of replacement work in the
order specified below.
PJDIV PWB
CPU PWB
GPSU
Interface board
"Confidential, Do Not Duplicate without written authorization from NEC."
TROUBLESHOOTING
No
Reinsert the associated connectors.
Adjust the VR of GPSU to secure a
No normal value. Replace the GPSU, as
required.
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