Is this a screen defect? LG 39LB5600

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  • Ponchojack
    Member
    • Mar 2020
    • 15
    • United States
    #1

    Is this a screen defect? LG 39LB5600

    I have this TV that seriously burnt an LED strip. It blew out the Main board but the power and t-con boards are ok. (I've swapped them for other good boards) The screen (and scan drive boards) , ribbon cables, and diffuser seem fine and show no visual damage. The screen shows a pattern I've not seen in an LED TV where the top half of the screen is problematic. Attached image.

    Any experienced thoughts?

    Poncho
    Attached Files
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    • Ponchojack
      Member
      • Mar 2020
      • 15
      • United States
      #2
      Re: Is this a screen defect? LG 39LB5600

      uploader rotated the picture, sorry.

        Comment

        • Davi.p
          Hobbist Tech
          • Sep 2009
          • 4326
          • Italy - Milan
          #3
          Re: Is this a screen defect? LG 39LB5600

          It has surely a bad screen defect, plus another one for the shadow, bin it, better for you..

            Comment

            • Ponchojack
              Member
              • Mar 2020
              • 15
              • United States
              #4
              Re: Is this a screen defect? LG 39LB5600

              Yeah, the shadow is a minor reflector issue I can fix, but the rest must be the screen.

              Well, I have some replacement boards and a frame with a new LED set of strips if anyone needs them.

              Poncho

                Comment

                • handsworth
                  Senior Member
                  • Oct 2015
                  • 174
                  • United States
                  #5
                  Re: Is this a screen defect? LG 39LB5600

                  I have that same tv last week and did a full led replacement. When I replaced the screen, I had the same kind of thing happen. Its one of the tabs on the side of the screen that went bad. If you wiggle them, you may see the screen clear up. If so, tape it in that position. There are posts here that show how to cut them off. They are drivers and THIS IS IRREVERSIBLE!!!!

                    Comment

                    • Ponchojack
                      Member
                      • Mar 2020
                      • 15
                      • United States
                      #6
                      Re: Is this a screen defect? LG 39LB5600

                      Thanks so much for this tip. Did you need to use some sort of glue or did they just reconnect when you pressed them?

                        Comment

                        • handsworth
                          Senior Member
                          • Oct 2015
                          • 174
                          • United States
                          #7
                          Re: Is this a screen defect? LG 39LB5600

                          I just pressed the ones towards the top and the screen cleared. I used a little black tape to hold it there in that position

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