C5701 (bizhub C4050i/C3350i)

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Trouble typeC5701: Power supply malfunction
RankC
Trouble detection conditionA condition is detected in which no power is being supplied to the base board (BASEB).
Trouble isolation–
Relevant electrical parts• Front door sensor (PS1)
• Right door sensor (PS2)
• Front door switch (SW2)
• Right door switch (SW5)
• DC power supply (DCPS)
• CPU board (CPUB)
• Base board (BASEB)

Procedure

  1. Check the connector between PS1, PS2-BASEB CN16E for proper connection and correct as necessary.
  2. Check the connector between SW2, SW5-relay CN36-DCPS CN3 for proper connection and correct as necessary.
  3. Check the connector between DCPS CN4-BASEB CN3E for proper connection and correct as necessary.
  4. Check the connector between DCPS CN6-BASEB CN1E for proper connection and correct as necessary.
  5. Check CPUB for proper installation and correct as necessary.
  6. Replace CPUB. ( A93EH01004 )
  7. BASEB F5E conduction check
  8. Replace BASEB. ( A93EH02007 )
  9. Replace DCPS. ( AAJRR70600 )

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

(Link to the Field Service Manual) L.3.10.10.