925.01-Fan Error Service Check - Lexmark C540n Service Manual

925.01—Fan error service check
Step Questions / actions
Turn the printer off, and remove the rear
1
shield. See
"Top cover assembly removal"
4-13. Check the fan cable at JFAN1
on page
for the following values:
Pin
1
2
3
Are the measured values correct?
JFAN1
Value
+3.3 V dc
Ground
0 (fan off)
Yes
Replace the top cover
(which includes the fan).
See
"Top cover assembly
removal" on page 4-13.
5025-2xx, 4xx
No
Replace the controller
board. See
"Controller
board removal" on
page 4-20.
Diagnostic information
2-25
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