C5351 (bizhub C754e/C654e)
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 (Replace DCPU Fan Motor) | – | – |
| 5 | PRCB ICP3 conduction check | – | – |
| 6 | Replace DCPU (Part# A2X0R70311) | – | – |
| 7 | Replace PRCB (Part# A2X0H00S06) | – | – |
- Link to the wiring diagram (N.1. bizhub C754e/C654e)
- Link to the layout drawings for related parts by each trouble code (S.85. C5351)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
K.3.10.4 (Link to the Field Service Manual)