Cooling Fan Service Check - Lexmark E330 Service Manual

4505

Cooling fan service check

FRU
Cooling fan
2-48
Service Manual
Action
Make sure the fan cable plug is
properly seated at J19 (controller
card).
Turn the printer off and disconnect
the cooling fan cable from the
controller card.
Turn the printer on. Within a few
seconds the controller card
assembly should apply between
+24 V dc to pin 2. See
board" on page 5-3
information.
• If voltage is present and the fan is
not turning, replace the cooling
fan. If the fan still doesn't function,
replace the controller card.
Note: The fan speed is controlled by
a module on the PCB.
Between +8 V and +24 V dc
are constantly supplied at
pin 2 (J19). Pin 1 is ground
while pin 3 receives feedback
from the fan motor.
• If voltage is not present, see
"Controller board" on page 5-3
for more information.
"Controller
for more