Post Error Service Check - Lexmark X734de Service Manual

7526
920.21—POST error service check
Step Questions / actions
1 Check the input voltage switch on the back of
the low-voltage power supply (LVPS). Some
power supplies do not have the switch, and
automatically switch.
Note: Some LVPS FRUs do not have a
switch, and are switch automatically. If your
FRU does not have this switch, go to step 2.
Is the voltage level (115/230) properly set?
2 Turn the printer off, and then remove the rear
frame cover. See
removal" on page
Reseat the cable in connector JLVPS2.
Does the error clear?
3 Check the cable JLVPS2 for pinch points and
any other damage to the cable or connector.
Is the cable damaged?
2-122
Service Manual
"Rear frame cover
4-38.
Yes
Go to step 2.
Problem resolved.
Replace the low-voltage
power supply. See "Low-
voltage power supply
(LVPS) removal" on
page 4-104.
No
Set the switch for the
proper country voltage.
Go to step 3.
Go to step 4.