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C40A2, C40A3, C40A4, C40A5, C40A6, C40C3, C40C5 (bizhub C750i)
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Contents
Trouble type | C40A2: Mechanical controller PF communication data error C40A3: Mechanical controller PF transmission timeout C40A4: Mechanical controller PF communication pulse error C40A5: QSPI communication clock switching error C40A6: Mechanical controller ASIC communication error C40C3: CTL PF transmission timeout 1 C40C5: CTL PF transmission timeout 2 |
Rank | C |
Trouble detection condition | A CPU communication error is detected. |
Trouble isolation | – |
Relevant electrical parts | • CPU board (CPUB) • Base board (BASEB) |
Procedure
- Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch.
- Check CPUB for proper installation and correct as necessary.
- Rewrite the firmware.
- Replace CPUB. (Part# ACKNH02P03)
- BASEB F8E conduction check
- Replace BASEB. (Part# ACKNH02101)