Onn 100012586 vertical lines

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  • JRyan
    Expert tinkerer
    • Sep 2023
    • 21
    • USA

    #1

    Onn 100012586 vertical lines

    I found another TV by the road and took it home to try and fix it. This one has vertical lines as seen in the pic. I've disconnected both of the ribbons going from the tcon to panel one at a time and still see lines. Is the tcon board bad?
    Attached Files
    Last edited by JRyan; 10-31-2023, 06:04 PM.
    Trust me, i used to be an IT guy
  • EazyBone
    Badcaps Legend
    • Jun 2023
    • 1306
    • United states

    #2
    Re: Onn 100012586 vertical lines

    Probably means it's panel. Vertical lines is bad news usually.

    Comment

    • JRyan
      Expert tinkerer
      • Sep 2023
      • 21
      • USA

      #3
      Re: Onn 100012586 vertical lines

      That would be a bummer. I also disconnected both left and right at the same time from tcon and the lines went away, though I'm not sure if that means anything useful?

      Anything i can test or check?
      Trust me, i used to be an IT guy

      Comment

      • EazyBone
        Badcaps Legend
        • Jun 2023
        • 1306
        • United states

        #4
        Re: Onn 100012586 vertical lines

        Google fixing TV with tape, watch video and try to get a picture using tape method.

        If you disconnect both tcon boards and lines go away it's because you have nothing going to panel at all so the screen isn't going to do anything without power. You'll see the backlight potentially because the power board supplys that.

        Comment

        • JRyan
          Expert tinkerer
          • Sep 2023
          • 21
          • USA

          #5
          Re: Onn 100012586 vertical lines

          Ok that makes sense about both sides being disconnected.

          So I'm guessing disconnecting/reconnecting the ribbon cable did this? Now one side shows picture.
          Attached Files
          Trust me, i used to be an IT guy

          Comment

          • EazyBone
            Badcaps Legend
            • Jun 2023
            • 1306
            • United states

            #6
            Re: Onn 100012586 vertical lines

            Hey that's good! Now try the tape method on the other ribbon cables then. You may be able to partially get working. Check buffer boards for shorts

            Comment

            • KYBOSH
              Badcaps Veteran
              • Oct 2011
              • 581
              • Unknown

              #7
              Re: Onn 100012586 vertical lines

              This is very interesting...
              One side causing distortion on the other side.
              Dont think ive seen that before.

              They should be independent unless its an issue with the T-con board itself right?

              Comment

              • JRyan
                Expert tinkerer
                • Sep 2023
                • 21
                • USA

                #8
                Re: Onn 100012586 vertical lines

                Y'all will find this interesting too. I tried the tape fix and if the right screen side of the tcon(tape on ribbon cable) is connected the picture does not show and there are lines on the left side which works if only that sides ribbon cable is connected.

                I've attached pics
                Attached Files
                Last edited by JRyan; 11-01-2023, 11:01 PM.
                Trust me, i used to be an IT guy

                Comment

                • JRyan
                  Expert tinkerer
                  • Sep 2023
                  • 21
                  • USA

                  #9
                  Re: Onn 100012586 vertical lines

                  So I've looked for how to test for shorts but haven't found much so how do i test the left one?
                  Trust me, i used to be an IT guy

                  Comment

                  • JRyan
                    Expert tinkerer
                    • Sep 2023
                    • 21
                    • USA

                    #10
                    Re: Onn 100012586 vertical lines

                    I found a short in STV capacitor but it looks like it's broken. What does the 101 on them mean and how can i find a replacement?
                    Attached Files
                    Trust me, i used to be an IT guy

                    Comment

                    • EazyBone
                      Badcaps Legend
                      • Jun 2023
                      • 1306
                      • United states

                      #11
                      Re: Onn 100012586 vertical lines

                      Small components like that will test short sometimes when they just are supposed to be very low resistance. Make sure that's the case. Like the one with the zero on it should basically test short. What's the other 101 test as

                      Comment

                      • lotas
                        Badcaps Legend
                        • Jan 2016
                        • 4491
                        • Russia

                        #12
                        Re: Onn 100012586 vertical lines

                        Originally posted by JRyan
                        IWhat does the 101 on them mean and how can i find a replacement?
                        101 is an SMD resistor, the resistance of which is 100 Ohm.

                        Comment

                        • JRyan
                          Expert tinkerer
                          • Sep 2023
                          • 21
                          • USA

                          #13
                          Re: Onn 100012586 vertical lines

                          Originally posted by EazyBone
                          Small components like that will test short sometimes when they just are supposed to be very low resistance. Make sure that's the case. Like the one with the zero on it should basically test short. What's the other 101 test as
                          I tested the ones around it and all of them are 100 ohms the one that's short is 0.


                          Originally posted by lotas
                          101 is an SMD resistor, the resistance of which is 100 Ohm.
                          Ah ok that makes sense thank you for the info! I'll be pumped if replacing it fixes the TV I just wish i had checked the buffer board or driver board before buying a tcon replacement.
                          Trust me, i used to be an IT guy

                          Comment

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