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C5601 (bizhub 650i/550i/450i)

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Trouble typeC5601: Engine control malfunction
RankC
Trouble detection conditionEngine control malfunction is detected with port monitor control.
Trouble isolation–
Relevant electrical parts-CPU board (CPUB)
-Base board (BASEB)

Procedure

  1. Check the connectors on BASEB for proper connection and correct as necessary.
  2. Rewrite the firmware.
  3. Replace CPUB.
    650i/550i (Part# AC74H02P03)
    450i (Part# AC76H02P02)
  4. Replace BASEB. (Part# AC74H02101)

(Link to the Field Service Manual)

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