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C7623 (bizhub C360i/C300i/C250i)

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Trouble type C7623: Power line B3 error
RankC
Trouble detection conditionThe fuse detection unit detected an error for a predetermined time.
Trouble isolation–
Relevant electrical parts• PH unit 
• Expansion control board (EXCB)

Procedure

  1. EXCB ICP1 or ICP3 conduction check.
  2. Check the connector between the PH unit-relay CN306-EXCB CN10EX for proper connection and correct as necessary.
  3. Check the connector between the PH unit-relay CN300-EXCB CN7EX for proper connection and correct as necessary.
  4. Replace the PH unit. (Part# AA2JR71500)
  5. Replace EXCB. (Part# AA2JH00500)

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

L.3.13.44 (Link to the Field Service Manual)

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