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C6902 (bizhub C3320i)

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Trouble typeC6902: Bus check NG1-1C
RankC
Trouble detection conditionWhen bus check (front side) detects an error.
Trouble isolation–
Relevant electrical parts-CIS module (IR CIS)
-CIS relay board (CISRYB)
-DF CIS module (DF CIS)
-DF CIS relay board (DFCISRYB)
-CPU board (CPUB)
-Base board (BASEB)

Procedure

  1. Check the connector between IR CIS-CISRYB CN1 for proper connection and correct as necessary.
  2. Check the connector between CISRYB CN2-BASEB CN6 for proper connection and correct as necessary.
  3. Check the connector between DF CIS-DFCISRYB CN1 for proper connection and correct as necessary.
  4. Check the connector between DFCISRYB CN2-BASEB CN5 for proper connection and correct as necessary.
  5. Check CPUB for proper installation and correct as necessary.
  6. Replace CPUB. (Part# AAJRH01005)
  7. Replace BASEB. (Part# A93EH02007)

L.3.11.10 (Link to the Field Service Manual)

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