Oki C7400 Maintenance Manual page 110
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Also See for C7400:
- Limited warranty (12 pages) ,
- Parts list (17 pages) ,
- User manual (186 pages)
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6
Motor Fan Error
•
Does the low voltage power supply fan run after power-on?
•
No
Is 32V output to the fuse FU502 of the engine board (71K PWB)?
•
No
Is 32V output to the power connector of the engine board (71K PWB)?
32V: Pins 7, 8, 9 and 10
No
•
Yes Replace the engine board.
•
Yes Has the low voltage power supply fan replaced?
Yes End
•
No
Replace the low voltage power supply fan.
•
Yes
Does the engine board fan rotate after power-on?
•
No
Is 32V output to the fuse FU502 of the engine board (71K PWB)?
•
No
Is 32V output to the power connector of the engine board (71K PWB)?
32V: Pins 7, 8, 9 and 10
No
•
Yes Replace the engine board.
•
Yes Replace the fan of the engine board.
•
Yes
End
41316401TH Rev.9
Replace the low voltage power unit after checking the cable connection.
Replace the low voltage power after checking the cable connection.
Oki Data CONFIDENTIAL
110 /
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Troubleshooting
