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C5501 (bizhub 950i/850i)
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Contents
| Trouble type | C5501: AC signal abnormality |
| Rank | C |
| Trouble detection condition | The zero cross signal is not input during fusing phase control. |
| Trouble isolation | – |
| Relevant electrical parts | – Fusing unit – DC power supply unit/1 (DCPU/1) – CPU board (CPUB) – Base board (BASEB) |
Procedure
- Check the fusing unit for correct installation (whether it is secured in position).
- Check the connector between the fusing unit-relay CN807-BASEB CN30E for proper connection and correct as necessary.
- Check the connector between DCPU/1 CN7-BASEB CN31E for proper connection and correct as necessary.
- Check CPUB for proper installation and correct as necessary.
- Replace the fusing unit.
- Replace CPUB.
- Replace BASEB.
- Replace DCPU/1.