AR-M550 Dead touch screen

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  • Buddy
    Trusted Tech

    250+ Posts
    • Aug 2009
    • 285
    #1

    AR-M550 Dead touch screen

    Hi Guys,

    I tried replacing the touch screen. What I'm getting is a faint blue light coming from the screen. There is no image at all on the screen. Machine operates fine. (People are able to print to it.)

    I was just hoping someone could tell me what and where the board is that powers the touch screen.

    Thanks,

    Buddy
    Tags: hoping, print, screen, touch
    • blackcat4866
      Master Of The Obvious

      Site Contributor
      10,000+ Posts
      • Jul 2007
      • 22999
      #2
      Re: AR-M550 Dead touch screen

      It could be as simple as a failed fluorescent backlight or inverter PWB. Can you select individual functions even though you can't see them? I would estimate 80% op panel PWB, 15% Controller PWB, 5% something else. =^..^=
      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

        • scottshepp
          Junior Member
          • Nov 2015
          • 2
          #3
          Re: AR-M550 Dead touch screen

          Try to slide the MFP PWB in and out a few times.

            Comment

            • Buddy
              Trusted Tech

              250+ Posts
              • Aug 2009
              • 285
              #4
              Re: AR-M550 Dead touch screen

              Thanks Guys,

              I tried all of the above and replacing all the related boards - no luck. Did this on a Friday. Went back to it on Monday and it was working! Working that is until I put the back cover on. Turned out to be a shorting harness. What a PIA! Thanks again.

                Comment

                • Ratchet2501
                  Trusted Tech

                  Site Contributor
                  100+ Posts
                  • Mar 2017
                  • 206
                  #5
                  Re: AR-M550 Dead touch screen

                  Originally posted by Buddy
                  Thanks Guys,

                  I tried all of the above and replacing all the related boards - no luck. Did this on a Friday. Went back to it on Monday and it was working! Working that is until I put the back cover on. Turned out to be a shorting harness. What a PIA! Thanks again.

                  That annoying line between something amazing or something stupid, real stresser sometimes

                    Comment

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