C5603 (bizhub 558/458)

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Trouble typeC5603: Front side board communication error
RankC
Trouble detection conditionCommunication error is detected in front side board.
Trouble isolation–
Relevant electrical partsFront side board (FRB)PH unitMFP board (MFPB)

 Procedure

  1. Reboot the machine.
  2. Check the connector between FRB CN5-PH unit for proper connection and correct as necessary.
  3. Check the connector between FRB CN2-MFPB CN8E for proper connection and correct as necessary.
  4. Replace FRB. (Part# A9HJH00501)
  5. Replace the PH unit. (458 Part# A9HHR70000 / 558 Part# A9HGR70400)
  6. MFPB F10E conduction check
  7. Replace MFPB. (558 Part# A9HGH02102 / 458 Part# A9HHH02102)

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

K.3.17.11 (Link to the Field Service Manual)