Samsung LN52A550P3F ...... Vertical Lines/Black Screen

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  • Paul678
    Badcaps Veteran
    • Nov 2011
    • 402
    #1

    Samsung LN52A550P3F ...... Vertical Lines/Black Screen

    The sound is fine on this one.

    But the owner cannot see the menu, because the
    screen is either random colored vertical lines, or a black
    screen. When it's a black screen, he can still see the
    backlight lamp illuminated.

    He thought it was the T-con board, but after
    replacing it, the problem was still there.

    Ideas on this one? Thanks for your time.....
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Samsung LN52A550P3F ...... Vertical Lines/Black Screen

      It was the T-con board on a 40" Samsung I had that caused this problem. A voltage regulator on it failed. It's possible he received a faulty T-con.

      The remaining candidates are the main board and power supply. Or a loose T-con connector.

      I would go for it - sounds like an easy fix. Even if you bought both boards, that's going to be cheaper than a new 52" LCD. But don't pay more than $50.
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

        Comment

        • Paul678
          Badcaps Veteran
          • Nov 2011
          • 402
          #3
          Re: Samsung LN52A550P3F ...... Vertical Lines/Black Screen

          Actually, this is a repair job. He's not selling it.

          I seem to remember you said you don't do repairs for other people.

          But if you did, what would you charge for the labor? Excluding
          the cost of boards you may have to order....

          After my last TV job, I understand why the repair guys
          charge so much.....

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Samsung LN52A550P3F ...... Vertical Lines/Black Screen

              Originally posted by Paul678
              Actually, this is a repair job. He's not selling it.

              I seem to remember you said you don't do repairs for other people.

              But if you did, what would you charge for the labor? Excluding
              the cost of boards you may have to order....

              After my last TV job, I understand why the repair guys
              charge so much.....
              Well, it would take me around 2 hours, £60/hour... plus tax and parts etc.

              I'd make more money repairing TVs myself to sell, that's why I don't repair them.
              Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
              For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                Comment

                • Paul678
                  Badcaps Veteran
                  • Nov 2011
                  • 402
                  #5
                  Re: Samsung LN52A550P3F ...... Vertical Lines/Black Screen

                  Yes, that's become quite clear to me now.

                  Problem is, I have a Honda Accord, which barely fit a 46"
                  in the back seat last time, so I have doubts about moving
                  a 52".....maybe time to call a friend with a truck.... hehe

                    Comment

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