insignia ns-50d550na15 flashing crazy colors and shapes

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  • pocketmouse
    New Member
    • Jul 2015
    • 8
    • america
    #1

    insignia ns-50d550na15 flashing crazy colors and shapes

    hello all! im here looking to fix my sisters tv. it was a floor model at bestbuy only worked for like 6 months before doing this crazy stuff as seen below in photos. it flashes through green and pink with random squares and shapes. im not sure but from looking at videos and picture im thinking maybe t-con but with that said ive yet to see a screen that looks like mine and i dont believe there is sound but cant tell what input it is on to test it
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    • pocketmouse
      New Member
      • Jul 2015
      • 8
      • america
      #2
      Re: insignia ns-50d550na15 flashing crazy colors and shapes

      ok so i have sound on the tv so there is that

        Comment

        • Hamie
          Badcaps Legend
          • Apr 2014
          • 1383
          • UK
          #3
          Re: insignia ns-50d550na15 flashing crazy colors and shapes

          Mainboard by the looks of it.

          Check tcon voltages
          Avdd, voffe, vone, vgl, vgh

          If all are within spec then it would suggest bad mainboard.

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