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C5351 (bizhub C754/C654)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
Contents
Trouble type | DC power supply cooling fan’s failure to turn |
Trouble code | C5351 |
Rank | B |
Detection timing | The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning. |
Trouble isolation | – |
Relevant electrical parts | -DC power supply cooling fan (FM9) -DC power supply (DCPU) -Printer control board (PRCB) |
 (2)Procedure
Step | Action | Control signal | Location of electrical components |
1 | Check the connector between FM9-relay CN333-PRCB CN38 for proper connection and correct as necessary. | – | – |
2 | Check the fan for possible overload and correct as necessary. | – | – |
3 | FM9 operation check | PRCB CN38-1 (DRIVE)PRCB CN38-3 (LOCK) | 19-K |
4 | Replace FM9 (Part# A2X0M14000) | – | – |
5 | PRCB ICP3 conduction check | – | – |
6 | Replace DCPU (Part# A2X0R70300) | – | – |
7 | Replace PRCB (Part# A2X0H00102) | – | – |
- Link to the wiring diagram (N.1. bizhub C754/C654)
- Link to the layout drawings for related parts by each trouble code (S.85. C5351)
K.3.10.4 (Link to the Field Service Manual)