Samsung LCD TV Display Issue

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  • dgambino1
    New Member
    • Jan 2017
    • 8
    • USA
    #1

    Samsung LCD TV Display Issue

    I'm hoping for some advice from the experts around here about the issue I'm experiencing.

    I have a Samsung LCD LN52A650 where the LCD is showing waves. Long story short is that it was having the power on/off issue. It wasn't the capacitors in the power board and it ended up being the main board (I swapped them both out).

    Can anyone offer any support on this one? Please? Here is link to gallery if pics are bad.
    Attached Files
    Tags: None
    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: Samsung LCD TV Display Issue

      Can we see the picture of the T-CON board.
      So cap C102 on the main board is bad?
      Never stop learning
      Basic LCD TV and Monitor troubleshooting guides.
      http://www.badcaps.net/forum/showthr...956#post305956

      Voltage Regulator (LDO) testing:
      http://www.badcaps.net/forum/showthr...999#post300999

      Inverter testing using old CFL:
      http://www.badcaps.net/forum/showthr...er+testing+cfl

      Tear down pictures : Hit the ">" Show Albums and stories" on the left side
      http://s807.photobucket.com/user/budm/library/

      TV Factory reset codes listing:
      http://www.badcaps.net/forum/showthread.php?t=24809

        Comment

        • dgambino1
          New Member
          • Jan 2017
          • 8
          • USA
          #3
          Re: Samsung LCD TV Display Issue

          Thanks for the reply bubm!

          I will get a pic of the t-con board asap. Are my screenshots an indicator of a bad t-con?

          The main board is fine now as I replaced it with another one but none of the caps seemed bad on the original board (nothing bulging/leaking). The TV is in perfect cosmetic condition. Its been babied its whole life.

            Comment

            • CapLeaker
              Leaking Member
              • Dec 2014
              • 8146
              • Canada
              #4
              Re: Samsung LCD TV Display Issue

              yep it does. Probably the AS-15 ic on the T-con board is bad.

                Comment

                • dgambino1
                  New Member
                  • Jan 2017
                  • 8
                  • USA
                  #5
                  Re: Samsung LCD TV Display Issue

                  Hey guys. Here is a pic of the Samsung's t-con board.

                  How does it look?

                  I never mentioned it but the TV is model LN52A650A1
                  Attached Files

                    Comment

                    • noledud
                      Badcaps Veteran
                      • Dec 2013
                      • 413
                      • united kingdom
                      #6
                      Re: Samsung LCD TV Display Issue

                      I think this set uses an AS19 chip

                        Comment

                        • noledud
                          Badcaps Veteran
                          • Dec 2013
                          • 413
                          • united kingdom
                          #7
                          Re: Samsung LCD TV Display Issue

                          does the chip near the bottom right black heatsink read AS19 on it at all

                            Comment

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