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C5610 (bizhub 650i/550i/450i)

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Trouble typeC5610: PH LD drive communication error
RankC
Trouble detection conditionLD drive write data and read data disagree with each other a predetermined number of consecutive times.
Trouble isolation–
Relevant electrical parts-PH unitCPU board (CPUB)
-Base board (BASEB)

Procedure

  1. Reboot the machine.
  2. Check the connector between BASEB CN17E-relay CN307-PH unit for proper connection and correct as necessary.
  3. Check CPUB for proper installation and correct as necessary.
  4. Replace the PH unit.
    650i/550i (Part# AC74R70200)
    450i (Part# AC76R70100)
  5. Replace CPUB.
    650i/550i (Part# AC74H02P03)
    450i (Part# AC76H02P02)
  6. Replace BASEB. (Part# AC74H02101)

(Link to the Field Service Manual)

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