Lexmark C925 Service Manual page 77

Step Action and questions
1 Are the cables connecting CN24 on the engine board,
CN5 on the printhead controller, and CN03 in the
LVPS properly connected?
2 Re connect the cables. Did this fix the problem?
3 Check the cables for continuity. Is there continuity?
4
Replace the cables. Did this fix the issue?
5 Check pins 1,3, and 7 on CN03 on the LVPS for +5V,
and pins 5, and 9 for +24V. Are the voltages correct?
6 Replace the LVPS. Did this fix the problem?
7 Replace the engine board. Does this fix the issue?
8 Replace the printhead controller board. Did this fix the
issue?
Yes No
Go to step 3. Go to step 2.
Problem resolved Go to step 3.
Go to step 5. Go to step 4.
Problem resolved Go to step 5.
Go to step 7 Go to step 6.
Problem resolved Go to step 7
Problem resolved Go to step 8.
Problem resolved Contact your
second level of
support.
Diagnostic information
5041-030
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