C6752 (bizhub C4050i/C3350i)

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Trouble typeC6752: ASIC clock input error (front side)
RankC
Trouble detection conditionWhen starting the machine, verification on reading and writing the predetermined value for CPU (image processing section) on CPU board (CPUB) was conducted, and verification failure was detected.
Trouble isolationScanner
Relevant electrical parts• CIS module (IR CIS)
• CPU board (CPUB)
• Base board (BASEB)

Procedure

  1. Check CPUB for proper installation and correct as necessary.
  2. Replace IR CIS. (Part# AAJNR71200)
  3. Replace CPUB. (Part# A93EH01004)
  4. Replace BASEB. (Part# A93EH02007)

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

L.3.11.6 (Link to the Field Service Manual)