C5351 (bizhub C754/C654)
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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)