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CDF50, CDF70, CDFA0 (bizhub 650i/550i/450i)

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Trouble typeCDF50: ASIC image version failure

CDF70: ASIC image access failure

CDFA0: ASIC image error
RankC
Trouble detection conditionCommunication error is detected between the CPU board (CPUB) and the CCD board (CCDB).
Trouble isolation–
Relevant electrical parts-CCD unit
-CPU board (CPUB)
-Base board (BASEB)

Procedure

  1. Check the connector between BASEB CN6-CCDB CN2 for proper connection and correct as necessary.
  2. Check CPUB for proper installation and correct as necessary.
  3. Rewrite the firmware.
  4. Replace the CCD unit. (Part# AA7NR72500)
  5. Replace CPUB.
    650i/550i (Part# AC74H02P03)
    450i (Part# AC76H02P02)
  6. Replace BASEB. (Part# AC74H02101)

(Link to the Field Service Manual)

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