C6903 (bizhub 658e/558e/458e)

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Trouble typeC6903: DSC board bus check NG1-2 (When SC-508 is installed)
RankC
Trouble detection conditionWhen DSC bus check (front side) detects an error.
Trouble isolation–
Relevant electrical parts• DSC board/1 (DSCB/1; SC-508) 
• MFP board (MFPB)

 Procedure

  1. Correct the harness connection of DSCB/1 if faulty.
  2. Replace DSCB/1. (Part# N/A)
  3. Replace MFPB. (658e/558e Part# AA6RH02103 / 458e Part# AA6UH02101)

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

L.3.18.11 (Link to the Field Service Manual)