ta 520i error code c0640

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  • tlf
    Technician
    • Nov 2010
    • 39

    #1

    ta 520i error code c0640

    Have a head banger here. this code will not reset with the sim codes formatting goes into on off right away. 906 just hangs and never tells you to turn off. scan disk goes into on off also tech support said hd s or sata cables. I had spare sata cables no change had 1 500 gig sata hd that was ready and formatted. tried it in both hd locations and did the regular sim settings still the same . Both orginal hd can be formatted on the computer and tested and work fine running out of ideas I have been told to consider the dims in the control panel or pcb control panel and possibly the main pwb. I did load firmware in the machine all passed except the cpu firmware failed ( maybe the error the machine is locked in is stopping it.)
  • blackcat4866
    Master Of The Obvious

    Site Contributor
    10,000+ Posts
    • Jul 2007
    • 23007

    #2
    Re: ta 520i error code c0640

    If you haven't changed the OEM HDD yet, I'd do that first.

    It sounds as thought you'd like to do everything ... except what the C0640 suggests. You're making this much more difficult than it needs to be. =^..^=
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

    Comment

    • Eric1968
      Service Manager

      1,000+ Posts
      • Jan 2009
      • 2458

      #3
      Re: ta 520i error code c0640

      Just replace the HDD. Had the same on a Taskalfa 4550ci. If formatting doesn't solve it, just replace it.

      Comment

      • tlf
        Technician
        • Nov 2010
        • 39

        #4
        Re: ta 520i error code c0640

        Thanks for the info guys I low level formatted the hard drives and tried them in a working machine hard drives were fine. Plugged the hard drives in the on the machine with the error code and it still popped the code machine would never allow a 906 reset or allow you to update cpu firmware.Replaced main pwb and resolved the issue just glad i was able to still warranty the board just made the 3 year warranty.

        Comment

        • blackcat4866
          Master Of The Obvious

          Site Contributor
          10,000+ Posts
          • Jul 2007
          • 23007

          #5
          Re: ta 520i error code c0640

          Thanks for posting back. I'll keep that in mind. =^..^=
          If you'd like a serious answer to your request:
          1) demonstrate that you've read the manual
          2) demonstrate that you made some attempt to fix it.
          3) if you're going to ask about jams include the jam code.
          4) if you're going to ask about an error code include the error code.
          5) You are the person onsite. Only you can make observations.

          blackcat: Master Of The Obvious =^..^=

          Comment

          • habik
            Service Manager

            Site Contributor
            1,000+ Posts
            • Apr 2010
            • 2013

            #6
            Re: ta 520i error code c0640

            In case you need to replace the Main PWB there is option to get repaired one for part exchange at much lower cost! Just to keep that in mind. Better than buying brand New. The difference is almost 50% of New!
            .OK Google! ... will I need Berrocca this morning?
            Firmwares HERE

            Comment

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