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  1. #1
    Technician Crown Delorean's Avatar
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    Lightbulb C6400 error on KM1500

    C6400 zero crossing signal error.

    Accordingg to the service manual, I have repalced the YC7 connector, and the power supply board. Still failing.

    After a few experiments, I realized what the memory on the engine board (24L032) is burned.

    I switched the engine boards from two machines, C0180 error, the machine number is stored in flash memory at the engine board, then i switch memory betwen cards, same as start, C6400 is shown.

    An engine board from another machine is automatically rejected, showing a C0180 error (machine number mismatch)

    Does anybody has a memory image from a new engine board?

    Can I change the machine number from a memory image from another machine?
    Regards.

    Crown Delorean
    - Sicut Aquila Ero Mente...
    Homepage at: www.circulodeciencias.net

  2. #2
    Technician dwparker.wa's Avatar
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    Before you swap anything else, reset the fuser code with sim.163.
    A zero cross error is usually caused by the wall power being bad, not the copier.
    Parker

  3. #3
    Technician Crown Delorean's Avatar
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    Lightbulb

    Thanks, but i can't get into service mode, How can i do it?

    I've tried as is in the manual, but it doesn't work.
    Last edited by Crown Delorean; 06-10-2007 at 09:04 PM.
    Regards.

    Crown Delorean
    - Sicut Aquila Ero Mente...
    Homepage at: www.circulodeciencias.net

  4. #4
    The Great Gazoo 250+ Posts kyoceradude's Avatar
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    Leave the front door open then plug it in, turn it on. You should be able to enter service mode.
    My mission here on Earth is to help all you Dum-Dums!

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