Possible causes for lines on screen for 52" Sony LCD

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  • Pioneerx01
    Badcaps Veteran
    • Apr 2015
    • 241
    • US
    #1

    Possible causes for lines on screen for 52" Sony LCD

    I do not have access to this TV, so I can't tell you much besides whats here. This is a 52" Sony, probably KDL-52XBR9, KDL-52Z5100 or KDL-52Z5500. Assuming that all connectors are seated properly, what are the most likely causes of this issue? There are reported lines and image blurriness on all inputs. I have my theories, but I do not want to taint the replays. If you have an opinion post it, even if it was listed already.

    Sorry, for images, that is the best I was given.

    Thanks
    Attached Files
    Tags: None
    • CapLeaker
      Leaking Member
      • Dec 2014
      • 7972
      • Canada
      #2
      Re: Possible causes for lines on screen for 52" Sony LCD

      since the lines aren't consistent on these pictures, I say tab bonds.

        Comment

        • awyatt2
          Badcaps Veteran
          • Feb 2012
          • 407
          • america
          #3
          Re: Possible causes for lines on screen for 52" Sony LCD

          the ghosting and lines are probably tab bonds or component failure on the ribbons

            Comment

            • freakaftr8
              Badcaps Legend
              • Oct 2012
              • 3743
              • USA
              #4
              Re: Possible causes for lines on screen for 52" Sony LCD

              That is not a tcon board issue. For sure short in the COF on the tab ribbons built into the panel..this may be able to be mimicked out if you adjust the RGB gains in the service menu. I've done it.for people before but sometimes wont help much.

              Probably an AUO panel
              Did I leave the soldering iron on?

                Comment

                • Davi.p
                  Hobbist
                  • Sep 2009
                  • 4263
                  • Italy - Milan
                  #5
                  Re: Possible causes for lines on screen for 52" Sony LCD

                  HI, i downloaded a Sony document on Italian TV forum that is called "TCon troubleshooting guide", in this there is some example screens listed as Tcon failures, one of those is equal to the defect you posted. Bye.

                    Comment

                    • Pioneerx01
                      Badcaps Veteran
                      • Apr 2015
                      • 241
                      • US
                      #6
                      Re: Possible causes for lines on screen for 52" Sony LCD

                      Can you post the documentation and image examples here? Thanks
                      Keep in mind that lines are not uniformed, and there is blurriness on the screen as well.
                      Last edited by Pioneerx01; 09-25-2015, 12:28 PM.

                        Comment

                        • CapLeaker
                          Leaking Member
                          • Dec 2014
                          • 7972
                          • Canada
                          #7
                          Re: Possible causes for lines on screen for 52" Sony LCD

                          Probably something similar like this document. However your failure looks different to me.
                          Attached Files

                            Comment

                            • Davi.p
                              Hobbist
                              • Sep 2009
                              • 4263
                              • Italy - Milan
                              #8
                              Re: Possible causes for lines on screen for 52" Sony LCD

                              Here it is:
                              http://www.mediafire.com/download/33...leshooting.pdf

                              Page 6.... it is not probably a so good document or a complete guide but anyway..

                                Comment

                                • Pioneerx01
                                  Badcaps Veteran
                                  • Apr 2015
                                  • 241
                                  • US
                                  #9
                                  Re: Possible causes for lines on screen for 52" Sony LCD

                                  All of the pictures on page 6 show symmetrical periodic uniformity. The ones I am looking at do not; which puts a doubt in my mind. But still thanks for your input on this.

                                    Comment

                                    • Davi.p
                                      Hobbist
                                      • Sep 2009
                                      • 4263
                                      • Italy - Milan
                                      #10
                                      Re: Possible causes for lines on screen for 52" Sony LCD

                                      I'm not referring to those screens with vertical lines periodic, but the second picture, watch the effect (vertical blur) on the big characters (Sony), its very similar to those characters on your pictures... By

                                        Comment

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