C5501 (bizhub C360i/C300i/C250i)

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Contents

Trouble typeC5501: AC signal abnormality
RankC
Trouble detection conditionThe zero cross signal is not input during fusing phase control.
Trouble isolation–
Relevant electrical parts• Fusing unit
• DC power supply (DCPU)
• CPU board (CPUB)
• Base board (BASEB)

Procedure

  1. Check the fusing unit for correct installation (whether it is secured in position).
  2. Check the connector between the fusing unit-relay CN95-BASEB CN4E for proper connection and correct as necessary.
  3. Check the connector between DCPU CN9-BASEB CN2E for proper connection and correct as necessary.
  4. Check CPUB for proper installation and correct as necessary.
  5. Replace the fusing unit. (Part# AA2JR70300)
  6. Replace CPUB. (Part# AA2JH02N06)
  7. Replace BASEB. (Part# AA2JH02005)
  8. Replace DCPU. (Part# AA2JR70600)

Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.

L.3.11.7 (Link to the Field Service Manual)