Lexmark E310 Service Manual - Page 36

Dead Machine Service Check, V ac - 240 V ac for the high voltage model printer

Page 36 highlights

4044-XXX FRU Model E312 HVPS Model E312 HVPS to Engine Board Cable E312 Engine Board 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. Measure the voltages on CN11. If any voltages are incorrect, replace the 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 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 "Engine/ LVPS Board (model E310)" on page 5-4 and check the engine/ LVPS board output.

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2-14
Service Manual
4044-XXX
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
Model E312
HVPS
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.
Model E312
HVPS to Engine Board Cable
Replace the cable if it does not
measure continuity.
E312
Engine Board
Go to the “Engine Board (model
E312)” on page -9.
Measure the
voltages on CN11. If any voltages
are incorrect, replace the engine
board.
FRU
Action
Model E310 & E312
LVPS Fuse
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
“Engine/
LVPS Board (model E310)” on
page 5-4
and check the engine/
LVPS board output.
FRU
Action