C5372 (bizhub C4000i/C3300i)

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Trouble typeC5372: MFP control board CPU temperature failure
RankC
Trouble detection conditionTemperature failure of CPU on the CPU board was detected.
Trouble isolation–
Relevant electrical parts• CPU cooling fan (FM3)
• CPU board (CPUB)
• Base board (BASEB)

Procedure

  1. Check the connector between FM3-BASEB CN17 for proper connection and correct as necessary.
  2. Check the fan for possible overload and correct as necessary.
  3. Check CPUB for proper installation and correct as necessary.
  4. FM3 operation check
    • Control signal: BASEB CN17-1 to 2
    • Location of electrical component: 21-I
  5. Replace CPUB. (Part# AAJRH01005)
  6. BASEB ICP1 conduction check
  7. Replace BASEB. (Part# AAJRH02005)

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

L.3.10.4 (Link to the Field Service Manual)