TV acting strange after cleaning screen

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  • tech2014
    Badcaps Veteran
    • Aug 2014
    • 807
    • Canada

    #1

    TV acting strange after cleaning screen

    I have a customer who is having an issue with a smartTV. His wife sprayed the screen with mr clean and now its acting weird. When he is using his remote to change from the on screen options, it seems to have a mind of its own. It will move on its own between icons on screen, or when he moves it left, it moves to the right. Any idea what could be causing this? It worked fine before cleaning so I assume its a screen issue.
  • Hamie
    Badcaps Legend
    • Apr 2014
    • 1383
    • UK

    #2
    Re: TV acting strange after cleaning screen

    more than likely she's used a cloth charged with static and damaged the touch sensitive buttons.

    Comment

    • tech2014
      Badcaps Veteran
      • Aug 2014
      • 807
      • Canada

      #3
      Re: TV acting strange after cleaning screen

      thanks. Is this something that is repairable or not?

      Comment

      • Hamie
        Badcaps Legend
        • Apr 2014
        • 1383
        • UK

        #4
        Re: TV acting strange after cleaning screen

        Diagnose it first.
        Unplug the buttons from the main board.

        Use the remote and see if it still changes icons etc.
        If not then you know it's the buttons.

        Good chance someone will be selling them.

        Alternatively use your ohm meter and check for differences in resistance.

        Or of course, just tell the customer to use the remote and leave the buttons disconnected.

        Comment

        • tech2014
          Badcaps Veteran
          • Aug 2014
          • 807
          • Canada

          #5
          Re: TV acting strange after cleaning screen

          bu buttons I assume you mean the power/input/menu buttons on the bottom/side of the tv.

          Comment

          • Hamie
            Badcaps Legend
            • Apr 2014
            • 1383
            • UK

            #6
            Re: TV acting strange after cleaning screen

            Yes

            Comment

            • tech2014
              Badcaps Veteran
              • Aug 2014
              • 807
              • Canada

              #7
              Re: TV acting strange after cleaning screen

              will the remote work without the buttons/sensor being connected to the main board?

              Comment

              • Hamie
                Badcaps Legend
                • Apr 2014
                • 1383
                • UK

                #8
                Re: TV acting strange after cleaning screen

                well if the remote sensor isnt plugged into the mainboard its not going to work.

                there will be a way to diconnect the buttons.. even if it involves removing the wires from the harness.

                Comment

                • diif
                  Badcaps Legend
                  • Feb 2014
                  • 6978
                  • England

                  #9
                  Re: TV acting strange after cleaning screen

                  Or if the buttons are on the bottom, she sprayed to much on the screen and this has run down between the frame and is making sporadic connections.

                  Comment

                  • stj
                    Great Sage 齊天大聖
                    • Dec 2009
                    • 31077
                    • Albion

                    #10
                    Re: TV acting strange after cleaning screen

                    Originally posted by diif
                    Or if the buttons are on the bottom, she sprayed to much on the screen and this has run down between the frame and is making sporadic connections.
                    this.

                    i'v seen all kinds of damage from people spraying cleaner on the screen including rusty frames!

                    Comment

                    • tech2014
                      Badcaps Veteran
                      • Aug 2014
                      • 807
                      • Canada

                      #11
                      Re: TV acting strange after cleaning screen

                      thanks guys.

                      Comment

                      • budm
                        Badcaps Legend
                        • Feb 2010
                        • 40746
                        • USA

                        #12
                        Re: TV acting strange after cleaning screen

                        It is also bad if it uses one of those screen where the tab bonding boards are at the bottom side in stead of on the top side of the screen, they get corroded and ruin the screen, seen that many times.
                        Never stop learning
                        Basic LCD TV and Monitor troubleshooting guides.
                        http://www.badcaps.net/forum/showthr...956#post305956

                        Voltage Regulator (LDO) testing:
                        http://www.badcaps.net/forum/showthr...999#post300999

                        Inverter testing using old CFL:
                        http://www.badcaps.net/forum/showthr...er+testing+cfl

                        Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                        http://s807.photobucket.com/user/budm/library/

                        TV Factory reset codes listing:
                        http://www.badcaps.net/forum/showthread.php?t=24809

                        Comment

                        • tech2014
                          Badcaps Veteran
                          • Aug 2014
                          • 807
                          • Canada

                          #13
                          Re: TV acting strange after cleaning screen

                          I hope thats not the problem budm. Thanks for the input guys.

                          Comment

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