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CD261 (bizhub C750i)

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Trouble typeCD261: USB hub board failure
RankC
Trouble detection condition-When a failure is detected in USB hub board included in the local interface kit.

-Non-standard USB device is connected.
Trouble isolation–
Relevant electrical parts-CPU board (CPUB)
-Base board (BASEB)
-USB hub board (USBHB EK-608 or EK-609)

Procedure

  1. Check the operation with another USB device.
  2. Check USBHB for proper connection and correct as necessary.
  3. Replace USBHB.
    EK-608 (Part# A7AHH02H01)
    EK-609 (Part# A7AHH02702)
  4. Replace CPUB. (Part# ACKNH02P03)
  5. Replace BASEB. (Part# ACKNH02101)

(Link to the Field Service Manual)

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