High Voltage Power Supply (Hvps) Service Check; Low Voltage Power Supply (Lvps) Service Check - Lexmark X500n Service Manual

High voltage power supply (HVPS) service check

Step Questions / actions
1 Remove photodeveloper cartridge,
and ensure charging unit on bottom
of photodeveloper cartridge is not
damaged. Is charging unit
damaged?
2 Check charging unit high voltage
contacts in printer. Are they clean?
3 Replace photodeveloper cartridge.
See "Photodeveloper cartridge
removal" on page
cleared?
Note: photodeveloper cartridge is a
customer-ordered part.
4 Check cable for continuity between
engine controller board connector
HVCN and HVPS BCN1 connector
and for shorted pins. Is cable okay?
5 Replace HVPS. See
power supply (HVPS) removal" on
page 4-39. Has error cleared?
6 Replace engine controller board.
See "Engine controller board
removal" on page
cleared?

Low voltage power supply (LVPS) service check

Step
1 Check cable for continuity between engine
controller board connector LVCN and LVPS
ACN4 connector. Also check for shorted
pins. Is cable okay?
2 Replace LVPS. See
supply (LVPS) with cage removal" on
page 4-40. Does problem persist?
3 Replace engine controller board. See
"Engine controller board removal" on
page 4-34. Does problem persist?
4-8. Has error
"High voltage
4-34. Has error
Questions / actions
"Low voltage power
Yes
Replace photodeveloper
cartridge. See
"Photodeveloper cartridge
removal" on page 4-8.
Note: photodeveloper
cartridge is a customer-
ordered part.
Go to step 3.
Problem solved.
Go to step 5.
Problem solved.
Problem solved.
Yes
Go to step 2.
Go to step 3.
Contact higher level
support.
7100-XXX
No
Go to step 2.
Clean contacts. If problem
persists, go to step 3.
Go to step 4.
Replace cable.
Go to step 6.
Contact higher level support.
No
Replace cable.
Problem solved.
Problem solved.
Diagnostic information
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