Dead Machine Service Check - Lexmark Optra 4044-XXX Service Manual

4044-XXX
FRU
Model E312
HVPS
Model E312
HVPS to Engine Board Cable
E312
Engine Board

Dead Machine Service Check

Note: Check the AC line voltage. The voltage should be within the
following limits:
100 V ac - 127 V ac for the low voltage model printer
200 V ac - 240 V ac for the high voltage model printer
FRU
Model E310 & E312
LVPS Fuse
2-14
Service Manual
Action
Measure the voltages at CN2 of the
HVPS. CN2-3 measures +5 V dc
and CN2-4 measures +24 V dc. If
the correct voltage is present, check
the continuity between the following
connector locations:
CN2-3 - CN1-17
CN2-3 - CN1-19
CN2-4 - CN1-2
CN2-4 - CN1-4
If any location does not measure
continuity, replace the HVPS.
Replace the cable if it does not
measure continuity.
Go to the "Engine Board (model
E312)" on page -9.
voltages on CN11. If any voltages
are incorrect, replace the engine
board.
Action
Check the fuse on the LVPS for
continuity. Replace with the
appropriate fuse if blown. If a fuse
blows again after being replaced,
install a new fuse and go to
LVPS Board (model E310)" on
page 5-4 and check the engine/
LVPS board output.
Measure the
"Engine/