Bad panel or tcon TC-L55E50 LC550EUD

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  • Solderjerk
    Member
    • Aug 2017
    • 16
    • United States

    #1

    Bad panel or tcon TC-L55E50 LC550EUD

    I'm pretty sure I know answer to this but is it a bad panel or tcon?
    I'm so pissed off cuz i finished this tv finally and now I'm sure the panel is trashed
    Short story in case it helps anyone out. Tv is a Panasonic TC-L55E50. Problem was it would blink the picture a couple times and the nothing, the power light would flash every 4 or 5 secs. Panasonics usually do this with a backlight problem. Took it apart, the panel was LG LC550EUD. Troubleshot any found 4 bad leds out of the 120. Replaced both strips and put back together. Tv fires up and works fine except for that big gray stain
    Attached Files
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: Bad panel or tcon TC-L55E50 LC550EUD

    That screen is CRACKED!
    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

    • Solderjerk
      Member
      • Aug 2017
      • 16
      • United States

      #3
      Re: Bad panel or tcon TC-L55E50 LC550EUD

      I figured that but I can’t see anything in it...and I was super careful dissecting it. I’m so pissed

      Comment

      • Solderjerk
        Member
        • Aug 2017
        • 16
        • United States

        #4
        Re: Bad panel or tcon TC-L55E50 LC550EUD

        Just wanted to follow up in case it helps anyone...
        I took lcd out and yes there is a crack and it follows those dead spots to a T. The crack was not visible from the front but very easy from the back.
        And a note to everyone, these screens are very brittle, more so than normal. Use caution... I can barely bend it and it cracks

        Comment

        • Andrew F. Ali
          Badcaps Legend
          • Jan 2014
          • 2450
          • Trinidad & Tobago

          #5
          Re: Bad panel or tcon TC-L55E50 LC550EUD

          You are not supposed to bend the screen. It will break And thanks for the bulletin that these screens are very brittle.

          Comment

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