XEROX 7655 configuration mismatch, diagnostic error 03-355

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  • vojinp
    • Jun 2025

    #1

    XEROX 7655 configuration mismatch, diagnostic error 03-355

    Dear all,

    Please help..

    Few months ago, my wc7655 lost scan function. After some time, every time when I turn it on, he show configuration mismatch, after clicking yes machine restart and I can use it after choosing language, time.. etc.. .counters zero.

    I called a friend, ex Xerox Technician, and he changed yellow battery located in a backcase, on PWB Assembly NVM.

    After that, machine was in a loop, always showing configuration mismatch, after clicking Yes, coming to same point, cant use machine like before.
    Software was 040.033.53260.. With WCCP, I had error 03-355

    We decided to do altboot, to update to latest software, but this didnt solve a case. Only UI was updated, other modules showed old version of software.
    Than we went to force upgrade procedure, downgrade to 040.033.53050, and all modules are now on that version, but I still have same problem.

    Does anybody have idea what to try?
    I am located in Serbia, so spare parts are rare, cant find PWB Assembly NVM 960k27121A to try...

    Vojin
  • adriansto
    Service Manager

    Site Contributor
    VIP Subscriber
    1,000+ Posts
    • Nov 2007
    • 2384

    #2
    Re: XEROX 7655 configuration mismatch, diagnostic error 03-355

    Do you have WCPP Diagnostic Navigator software tool and what version ?

    Comment

    • vojinp

      #3
      Re: XEROX 7655 configuration mismatch, diagnostic error 03-355

      Originally posted by adriansto
      Do you have WCPP Diagnostic Navigator software tool and what version ?
      Yes I have WCPP
      Tried on winXP platform with ....342 version, and on win7 with ....369

      Comment

      • adriansto
        Service Manager

        Site Contributor
        VIP Subscriber
        1,000+ Posts
        • Nov 2007
        • 2384

        #4
        Re: XEROX 7655 configuration mismatch, diagnostic error 03-355

        Originally posted by vojinp
        Yes I have WCPP
        Tried on winXP platform with ....342 version, and on win7 with ....369
        Ok,
        Use XP version of WCPP and send me at stoadis@gmail.com printscreens of dc100, dc105 and dc108.
        Also on MCU PWB you have a round battery. Measure the voltage on this batt - DO NOT disconnect battery when do voltage measurement.

        Comment

        • vojinp

          #5
          Re: XEROX 7655 configuration mismatch, diagnostic error 03-355

          Tnx a lot, will do it tomorrow morning from the office
          Regards,
          Vojin

          Comment

          • vojinp

            #6
            Re: XEROX 7655 configuration mismatch, diagnostic error 03-355

            DC100.JPGDC105.JPGDC108.JPG

            Comment

            • adriansto
              Service Manager

              Site Contributor
              VIP Subscriber
              1,000+ Posts
              • Nov 2007
              • 2384

              #7
              Re: XEROX 7655 configuration mismatch, diagnostic error 03-355

              Sent mail.
              The round battery is on a small pwb on the mcu pwb located at the left hand from net pwb
              But the problem is in dc105 , machine dont know if it is a copier or a copier/printer
              Do you have service manual pdf or edoc format ?

              Comment

              • vojinp

                #8
                Re: XEROX 7655 configuration mismatch, diagnostic error 03-355

                Originally posted by adriansto
                Sent mail.
                The round battery is on a small pwb on the mcu pwb located at the left hand from net pwb
                But the problem is in dc105 , machine dont know if it is a copier or a copier/printer
                Do you have service manual pdf or edoc format ?
                No service manual pdf or edoc at my side...
                My service technician has it, we were reading together, but dont know what else to try..
                I can ask him for it if needed...

                Comment

                • vojinp

                  #9
                  Re: XEROX 7655 configuration mismatch, diagnostic error 03-355

                  Originally posted by adriansto
                  Sent mail.
                  The round battery is on a small pwb on the mcu pwb located at the left hand from net pwb
                  But the problem is in dc105 , machine dont know if it is a copier or a copier/printer
                  Do you have service manual pdf or edoc format ?
                  At the end machine is repaired, NVM board was defected.
                  Case solved :-)

                  Comment

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