Cooling Fan Service Check (E320/E322) - Lexmark E320 - Printer - B/W Service Manual

Cooling fan service check (E320/E322)

FRU
Cooling fan
Note: When looking at the printed side of a PCB, connectors are
designated with "J" followed by a number. Pin 1 is designated
on the PCB by an adjacent "1" or triangle. Pin numbers index
sequentially to the opposite end of the connector. See
controller (E220/E321/E323 only) " on page 5-8
information.
Service checks involve measuring voltages of the LVPS,
high voltage power supply (HVPS), and controller card
assembly. Continuity and resistance verifications are
done on cables and components as required.
Action
Make sure the cooling fan motor
cable plug is properly seated on the
engine board.
Unplug the printer and disconnect
the cooling fan cable on the engine
board.
Restore printer power. Within
approximately 3 seconds the engine
board should apply +24 Volts direct
current (V dc) to the fan. See
"Connector locations " on
page 5-1 for more information.
• If voltage is present, replace the
cooling fan.
• If voltage is not present, see the
"Engine board service check
(E320/E322) " on page 2-72
more information.
Diagnostic information
4500
for
"RIP
for more
2-65