Post (Power-On Self Test)-24 V Power Supply Failure Error Service Check - Lexmark C734 Service Manual

Step Questions / actions
4 Check the transport motor cable for pinch
points and any other damage to the cable or
connector.
Is the cable damaged?
5 Visually inspect the motor driver card.
Is the motor driver card damaged?
6 Replace the EP drive assembly. See
"Electrophotographic (EP) drive assembly
removal" on page
920.21—POST (power-on self test)—24 V power supply failure error service check
Step Questions / actions
1 Check the input voltage switch on the back of
the low-voltage power supply (LVPS).
Some LVPS FRU do not have switches and
switch automatically. If your does not have a
switch, go to step 2.
230
Is the voltage level (115/230) properly set?
4-69.
A
Yes
Replace the transport
motor cable. See
"Transport cable
removal" on page 4-156.
Replace the motor driver
card. See "Motor driver
card removal" on
page 4-100.
Problem resolved.
Yes
Go to step 2.
No
Go to step 5.
Go to step 6.
Replace the system board.
See "System board
removal" on page 4-139.
No
Set switch for the proper
country voltage.
2-109
Diagnostic information
5026