Hvps connection service check, 918—hvps connection service check, 918—hvps connection service check” on – Lexmark 5021-0XX User Manual
Page 136

2-58
Service Manual
5021-0XX
918—HVPS connection service check
Step
Questions / actions
Yes
No
1
Turn printer off and remove
engine controller board
shield. See
controller board removal”
on page 4-55
for steps to
remove shield. Is cable
properly connected to
engine controller board
HVCN connector?
Go to step 2.
Properly connect
cable. Retest
printer. If error
clears, problem
solved,
otherwise go to
step 2.
2
Turn printer off and remove
items to expose HVPS.
See
supply (HVPS) removal”
on page 4-59
for steps.
Check for continuity and
pin shorts of cable that
connects engine controller
board HVCN and HVPS
CN1. Is cable okay?
Replace HVPS.
See
voltage power
supply (HVPS)
removal” on
page 4-59
Retest printer. If
error clears,
problem solved,
otherwise turn
printer off and
replace engine
controller board.
See
controller
board removal”
on page 4-55
Replace cable.
Retest printer. If
error clears,
problem solved,
otherwise turn
printer off and
replace engine
controller board.
See
controller
board removal”
on page 4-55
.