“Confidential, Do Not Duplicate without written authorization from NEC.”
4-26
TROUBLESHOOTING
Lens Fail
Yes
No
Is the potential at POPOJ100#8 on the PJDIV
PWB maintained at 3.4V (
±
0.1V)?
Check for disconnections and breakage of the
POPS (or POPSM1) and POPSM3 on the PJDIV
PWB. Replace them, as required.
Yes
No
Check for disconnections and breakage of the
POPOJ100 and POSIO on the PJDIV PWB.
Adjust disconnections of the POPOJ100 and
POSIO on the PJDIV PWB. Replace them, as
required.
Replacement work shall be carried out in the
sequential order as specified below.
PJDIV PWB
MOTOR PWB
CPU PWB
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