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CDF50, CDF70, CDFA0 (bizhub 4750i/4050i)

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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 CIS module (IR CIS).
Trouble isolation–
Relevant electrical parts-CIS module (IR CIS)
-CPU board (CPUB)
-Base board (BASEB)

Procedure

  1. Check the connector between IR CIS-BASEB CN6 for proper connection and correct as necessary.
  2. Check CPUB for proper installation and correct as necessary.
  3. Rewrite the firmware.
  4. Replace IR CIS. (Part# AAJNR71200)
  5. Replace CPUB. (Part# ACT9H01003)
  6. Replace BASEB.
    4750i (Part# ACT9H02013)
    4050i (Part# ACT9H02002)

(Link to the Field Service Manual)

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