Oki C9500 - Page 121

41956001TH Rev.6 121 /
Oki Data CONFIDENTIAL
5 Motor fan error
• Does the low-voltage power fan rotate at power ON?
• No Is 34V output to fuse F7 on the engine board (K7N PWB)?
• No Is 34V output to the power connector on the engine board (K7N PWB)?
34V: Pin 12, 13, 14
No Check the cable connections, then replace the low-voltage power unit.
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• Yes Replace the engine board.
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• Yes Was the low-voltage power board replaced?
• Yes End.
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• No Replace the low-voltage power board.
▼
• Yes Does the engine board fan rotate at power ON?
• No Is 34V output to fuse F7 on the engine board (K7N PWB)?
• No Is 34V output to the power connector on the engine board (K7N PWB)?
34V: Pin 12, 13, 14
No Check the cable connections, then replace the low-voltage power unit.
▼
• Yes Replace the engine board.
▼
• Yes Replace the engine board fan.
▼
• Yes End.