Sony KDL-40EX620 Panel damage?

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  • triplefour
    Badcaps Legend
    • May 2014
    • 1747
    • USA
    #1

    Sony KDL-40EX620 Panel damage?

    can someone please tell me if this is definitely panel damage, or could a faulty mainboard or tcon cause this kind of display?
    the whole display is affected by this "mirroring"

    thank you
    Attached Files
    Don't fear the repair...
    Tags: None
    • vinceroger69
      Badcaps Legend
      • Mar 2012
      • 6714
      • uk
      #2
      Re: Sony KDL-40EX620 Panel damage?

      possible a tab bond issue?

        Comment

        • Davi.p
          Hobbist Tech
          • Sep 2009
          • 4318
          • Italy - Milan
          #3
          Re: Sony KDL-40EX620 Panel damage?

          Failed side panel driver, possible fix, search the forum.. bye..

            Comment

            • budwich
              Badcaps Legend
              • Jul 2015
              • 3097
              • Canada
              #4
              Re: Sony KDL-40EX620 Panel damage?

              it looks the common "sony tab problem" I have been trying to get some "success" out of kdl46xbr4 (thread posted). There are lots of threads and youtubes and such showing how to attempt to resolve the issue via pressure on the fault tab... usually the top right or left ones on the panel. There is no way to repair, best you can hope for is a "save" that may work for a while, on and off.

                Comment

                • triplefour
                  Badcaps Legend
                  • May 2014
                  • 1747
                  • USA
                  #5
                  Re: Sony KDL-40EX620 Panel damage?

                  thank you, i will investigate and report back my findings
                  Don't fear the repair...

                    Comment

                    • Davi.p
                      Hobbist Tech
                      • Sep 2009
                      • 4318
                      • Italy - Milan
                      #6
                      Re: Sony KDL-40EX620 Panel damage?

                      No budwich, is not a pressure sensitive defect.. there are many threads of the same problem, solution is the flat cable masking with tape..

                        Comment

                        • budwich
                          Badcaps Legend
                          • Jul 2015
                          • 3097
                          • Canada
                          #7
                          Re: Sony KDL-40EX620 Panel damage?

                          you are probably right since there is no dark section just picture "stutter".

                            Comment

                            • freakaftr8
                              Badcaps Legend
                              • Oct 2012
                              • 3743
                              • USA
                              #8
                              Re: Sony KDL-40EX620 Panel damage?

                              Yes agreed flat cable masking with tape is the only way to go this is an inherant internal short and I seriously doubt this panel has side tab drivers however the vertical gate drivers are built into the panel with the reference lines carrying down to the appropriate positions.

                              Disconnect one side of the ribbons to the panel at a time and see which 1 looks straight
                              Did I leave the soldering iron on?

                                Comment

                                • triplefour
                                  Badcaps Legend
                                  • May 2014
                                  • 1747
                                  • USA
                                  #9
                                  Re: Sony KDL-40EX620 Panel damage?

                                  sorry, i gave up and parted out this tv before i saw the replies. i will try harder on the next one.
                                  Don't fear the repair...

                                    Comment

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