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C5501 (bizhub 360i/300i)

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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# AA2JR70311)
  6. Replace CPUB. (Part# AC77H02P02)
  7. Replace BASEB. (Part# AC77H02101)
  8. Replace DCPU. (Part# AA2JR74000)

(Link to the Field Service Manual)

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