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C7631 (bizhub 4750i/4050i)

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Trouble typeC7631: Supply power line 1 error
RankC
Trouble detection conditionAll of the fuse detection units of the same supply power line (24V10) detected an error for a predetermined time.
Trouble isolation–
Relevant electrical parts-DC power supply (DCPS)
-Base board (BASEB)

Procedure

  1. BASEB F1E, F2E, F3E, F4E conduction check
  2. Check the connector between DCPS CN4-BASEB CN3E for proper connection and correct as necessary.
  3. Check the connector between DCPS CN6-BASEB CN1E for proper connection and correct as necessary.
  4. Replace DCPS. (Part# AAJRR70600)
  5. Replace BASEB.
    4750i (Part# ACT9H02013)
    4050i (Part# ACT9H02002)

(Link to the Field Service Manual)

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