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CD703 (bizhub C650i/C550i/C450i)
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Contents
Trouble type | CD703: FW download communication fault |
Rank | C |
Trouble detection condition | Irregular data is received during FW downloading. -Places are changed in the order of write completion pulses. -A write completion pulse is received for a memory for which binary writing is not permitted. -Final checksum mismatch in FW download -Two-minute timeout (no response from CTL, the number of transfer data items less than the specified) |
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.
- Rewrite the firmware.
- Replace CPUB. (C650i Part# AA7NH02P03 / C550i Part# AA7PH02P01 / C450i Part# AA7RH02P02)
- Replace BASEB. (Part# AA7NH02102)
L.3.19.30 (Link to the Field Service Manual)