Lexmark X543 Service Manual page 232

7525-xxx
4.
Remove the screw (A) securing the HVPS.
5.
Press down on the spring mount and carefully slide the HVPS out. Release the pressure on the spring
mount when the LVPS slides out about 25mm.
Installation notes:
CAUTION
After disconnecting the high-voltage power cable from the controller board, always check that
the HVPS connection was not loosened. Make this check anytime you are working near the
HVPS cable.
Warning: Connect the high-voltage power supply (HVPS) cable to the high-voltage power supply before
sliding the board into the printer. Pull the HVPS cable through the access hole and plug into the
controller board. Be careful not to dislodge the cable from the HVPS.
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Service Manual
A