2-124 Service Manual
7526
920.21—POST error service check
Step Questions / actions Yes No
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?
Go to step 2. Set the switch for the
proper country voltage.
2
Turn the printer off, and then remove the rear
frame cover. See “Rear frame cover
removal” on page 4-40.
Reseat the cable in connector JLVPS2.
Does the error clear?
Problem resolved. Go to step 3.
3
Check the cable JLVPS2 for pinch points and
any other damage to the cable or connector.
Is the cable damaged?
Replace the low-voltage
power supply. See “Low-
voltage power supply
(LVPS) removal” on
page 4-124.
Go to step 4.
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