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C9403 (bizhub C3320i)

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Trouble typeC9403: CIS LED lighting failure (back side)
RankB
Trouble detection conditionAt the CIS gain adjustment, the machine detected that the output of the CIS LED is lower than the specified value.
Trouble isolationScanner
Relevant electrical parts-Flat cable
-DF CIS module (DF CIS)
-DF CIS relay board (DFCISRYB)
-CPU board (CPUB)
-Base board (BASEB)

Procedure

  1. Check the connector between DF CIS-DFCISRYB CN1 for proper connection and correct as necessary.
  2. Check the connector between DFCISRYB CN2-BASEB CN5 for proper connection and correct as necessary.
  3. Check CPUB for proper installation and correct as necessary.
  4. Replace the flat cable. (Part# AAJPN11500)
  5. Replace the DF CIS module assy. (Part# AAJPR70800)
  6. Replace DFCISRYB. (Part# AAJPH10100)
  7. Replace CPUB. (Part# AAJRH01005)
  8. Replace BASEB. (Part# A93EH02007)

L.3.14.2 (Link to the Field Service Manual)

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