Samsung LN52A550- Tab Bonds???

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  • DeathByCapacitance
    New Member
    • Mar 2017
    • 6
    • United States

    #1

    Samsung LN52A550- Tab Bonds???

    I have an LN52A550 that I bought off of craigslist. The problem lies either with the panel or the tab bonds, but I don't have enough experience to figure it out. What began as just a band of colored lines across the screen has turned into those same colored lines, but now that entire half of the screen is black.

    I have tried the tab bond repair methods mentioned throughout these forums, but I haven't had any success with them. I have also replaced the T con board, and it did not change anything.

    On startup, the lines are visible while the rest of the screen is still black. The menu does not override the lines, and all functions of the screen on the right side are BEHIND the lines/black screen.

    I've attached pictures, but the lines are hard to see in them. They are right next to the halfway mark on the screen - where the picture works. The black screen image is right after startup, before the picture is on, and the colored lines are still visible.
    Attached Files
  • Moreno83
    Badcaps Legend
    • Jun 2014
    • 2008
    • The Netherlands

    #2
    Re: Samsung LN52A550- Tab Bonds???

    Could you take some pictures of the tabbonds? This looks like a panel failure.
    I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

    Comment

    • DeathByCapacitance
      New Member
      • Mar 2017
      • 6
      • United States

      #3
      Re: Samsung LN52A550- Tab Bonds???

      I'll throw up pictures when I get home later today. I did forget to mention that I put some thermal conducting tape stuff on all of the tab bonds, stuff from digikey that I believe was something budm suggested.

      Comment

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