Colored Vertical lines on Samsung UN55C6400RF TV

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  • Maverick1234
    New Member
    • Sep 2021
    • 4
    • United States
    #1

    Colored Vertical lines on Samsung UN55C6400RF TV

    Hi,
    I have a Samsung 55inch TV (UN55C6400RF). It has started showing colored vertical lines. I have opened the TV and the power board had one pin (out1-) which is discolored (Model # bn44-00358b). Can this be bad or is it the T-Con board (Model # D03464E0J09B6012066). Any recommendations on diagnosing the issue?

    Thanks,
    Sanjay
    Last edited by SMDFlea; 09-15-2021, 02:23 AM. Reason: added UN55C6400RF
    Tags: None
    • Davi.p
      Hobbist Tech
      • Sep 2009
      • 4278
      • Italy - Milan
      #2
      Re: Colored Vertical lines on Samsung TV

      Need photos of defect and the rest. Anyway Out1- is for the baklight and does not affect the pixels, anyway it has to be checked for voltage / resistance.

        Comment

        • Maverick1234
          New Member
          • Sep 2021
          • 4
          • United States
          #3
          Re: Colored Vertical lines on Samsung UN55C6400RF TV

          Attached is the pic of the screen and the Out1- pin as compared to the other pins. Moreover I am hearing a humming noise from the power board. I will read about how to test the power board.

          I checked shopjimmy.com and it doesnt have the powerboard Model # bn44-00358bn for my TV, nor an alternate. Any recommendations where I could find an alternate version of the power board?

          Thanks,
          Sanjay
          Attached Files

            Comment

            • Davi.p
              Hobbist Tech
              • Sep 2009
              • 4278
              • Italy - Milan
              #4
              Re: Colored Vertical lines on Samsung UN55C6400RF TV

              The problem is on the tcon board or the panel, most probably the panel, i'm trying to diagnose same problem on mine, probably a bad chip or couple of chip on tcon.

                Comment

                • Maverick1234
                  New Member
                  • Sep 2021
                  • 4
                  • United States
                  #5
                  Re: Colored Vertical lines on Samsung UN55C6400RF TV

                  Were you able to diagnose the problem? If so please can you share the how and results. I tried measuring the voltages on the power board and didnt see any obvious problem.

                  Thanks,
                  Sanjay

                    Comment

                    • Davi.p
                      Hobbist Tech
                      • Sep 2009
                      • 4278
                      • Italy - Milan
                      #6
                      Re: Colored Vertical lines on Samsung UN55C6400RF TV

                      No this repair is in standby for much time i think..

                        Comment

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