MP c6502 NV Ram Missing

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  • Timmytronic
    Trusted Tech

    Site Contributor
    100+ Posts
    • Oct 2010
    • 249
    #1

    MP c6502 NV Ram Missing

    Hi, I have a MP c6502 and the NV Ram has been removed and it can't be found anywhere. It is not my machine but a customers I have acquired. Can anyone let me know if its possible to instal a new one and use data from another machine to make it work or will it need the serial numbers or and the old NV Ram settings. I think the machine may be written off at the mo.

    Any help would be gratefully received.

    Tim
    Tags: None
    • Cipher
      It's not easy being green

      1,000+ Posts
      • May 2006
      • 1309
      #2
      Re: MP c6502 NV Ram Missing

      I would fit a new NVRAM and start from scratch.

      Procedure is in the service manual on how to replace the controller and BCU NVRAMs.

      It's not straight forward, but it is possible.
      • Knowledge not shared, is eventually knowledge that becomes lost... like tears in the rain.

      Fully qualified technician for Ricoh - Canon - Sharp - HP - Brother

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        • slimslob
          Retired

          Site Contributor
          25,000+ Posts
          • May 2013
          • 37048
          #3
          Re: MP c6502 NV Ram Missing

          If you are lucky, the birth certificate will still be with the machine. If not, follow the Adjustment after Laser Unit Replacement procedures in the service manual to download the laser correction settings from the laser unit.

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            • Timmytronic
              Trusted Tech

              Site Contributor
              100+ Posts
              • Oct 2010
              • 249
              #4
              Re: MP c6502 NV Ram Missing

              Originally posted by slimslob
              If you are lucky, the birth certificate will still be with the machine. If not, follow the Adjustment after Laser Unit Replacement procedures in the service manual to download the laser correction settings from the laser unit.

              Hi, Can you copy a NV RAM and upload it to another machine? Once I have put a new chip in.?

              Thanks.

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                • slimslob
                  Retired

                  Site Contributor
                  25,000+ Posts
                  • May 2013
                  • 37048
                  #5
                  Re: MP c6502 NV Ram Missing

                  Originally posted by Timmytronic
                  Hi, Can you copy a NV RAM and upload it to another machine? Once I have put a new chip in.?

                  Thanks.
                  You could try the NVram procedures in the service manual. The only problem I can think of would be a serial number conflict. If I remember correctly, when you upload NVram data to an CD card the file name contains the serial number. I do not know if it is also stored in the file. You will still have to run SP 2108-001 & 002 to download the image parameters from the laser unit.

                  One question, are you missing all three NVram chips or just the one from the BCU or the two from the controller?

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