Dead Machine Service Check - Lexmark E320 - Printer - B/W Service Manual

Dead machine service check

CAUTION: Check the AC line voltage. The voltage should be
within the following limits:
•
100 Volts alternating current (V ac)–127 V ac for the low voltage
model printer
•
200 V ac–240 V ac for the high voltage model printer
FRU
Low voltage power supply fuse
(LVPS)
Power switch
Action
Unplug the printer and check the
fuse on the LVPS board for
continuity.
• If open, replace with appropriate
fuse.
– If fuse opens again, see
voltage power supply (LVPS)
service check " on page 2-76
for more information.
• If not open, see power switch
below.
Restore power and turn on the
printer power switch.
Check for AC line voltage in the
switch cable, CN1 (LVPS board),
between pin 1 and ground and
between pin 3 and ground.
• If line voltage is present, see the
"Cover interlock switch service
check (E320/E322) " on
page 2-69 or "Cover interlock
switch service check (E220/
E321/E323) " on page 2-70
more information.
• If line voltage is not present on
CN1, replace the power switch or
check/correct missing line voltage.
Diagnostic information
4500
"Low
for
2-71