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C6756 (bizhub C3320i)

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Trouble typeC6756: CIS power-supply voltage malfunction
RankC
Trouble detection conditionPower is not supplied to CIS after the lapse of a given period of time after the main power switch or power key is turned ON or the machine recovers from the sleep mode.
Trouble isolation–
Relevant electrical parts-CIS module (IR CIS)
-CIS relay board (CISRYB)
-DC power supply (DCPS)
-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 BASEB CN2E-DCPS CN5 for proper connection and correct as necessary.
  4. Check CPUB for proper installation and correct as necessary.
  5. Replace IR CIS. (Part# AAJPR70500)
  6. Replace CISRYB. (Part# AAJPH10100)
  7. Replace CPUB. (Part# AAJRH01005)
  8. Replace BASEB. (Part# A93EH02007)
  9. Replace DCPS. (Part# AAJRR70600)

L.3.11.9 (Link to the Field Service Manual)

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