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CD261 (bizhub 4750i/4050i)

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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-P08 or EK-P09)

Procedure

  1. Check the operation with another USB device.
  2. Check USBHB for proper connection and correct as necessary.
  3. Replace USBHB.
    (EK-P08 Part# ACCTH02100)
    (EK-P09 Part# ACCTH02200)
  4. Replace CPUB. (Part# ACT9H01003)
  5. Replace BASEB.
    4750i (Part# ACT9H02013)
    4050i (Part# ACT9H02002)

(Link to the Field Service Manual)

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