LG plasma logic board blink code

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  • tw2005
    Badcaps Legend
    • Oct 2011
    • 6458
    • Australia

    #21
    Re: LG plasma logic board blink code

    Originally posted by chood2
    I have a faulty, but not shorted YSUS. Caps look good... Not bulging... Buzzing however is quite present.

    I don't see where it shows what voltages VSETUP and VY, etc should be? I have oscilloscopes, etc.
    Label should be on the panel at the top. In my case I had an open cct transformer but that's a 2010 model. I know the same transformer was also on the 60" models too and I've also had a 60pk series also that had me stumped for a bit with that.

    Comment

    • Poor Flick
      Of sound mind
      • Jun 2014
      • 3167
      • U.S.S.A. The flophouse of the world.

      #22
      Re: LG plasma logic board blink code

      Originally posted by tw2005
      OMG, as soon as I read you removed the bottom heatsink I stopped. I feel your pain. Did that some years ago myself on a Samsung destroying a perfectly good panel.
      Yep, my ass is still bruised from the ass kicking I gave myself!
      The blinking pattern on the fully repaired and normal working set is steady with no irregular pattern.
      From my favoritest movie ever!:
      Cledus Snow: Can I ask you a question?
      Bo Darville: Sure, ask me what?
      Cleedus: What the Hell do we want to go to Texas for and haul beer back here? What is that?
      Bo: For the good old American life. For the money, the glory, and the fun. Mostly for the money.

      Comment

      • chood2
        Member
        • Oct 2017
        • 11
        • USA

        #23
        Re: LG plasma logic board blink code

        Originally posted by tw2005
        Label should be on the panel at the top. In my case I had an open cct transformer but that's a 2010 model. I know the same transformer was also on the 60" models too and I've also had a 60pk series also that had me stumped for a bit with that.
        Could you elaborate on your open cct transformer??

        Thanks for the help.

        Comment

        • chood2
          Member
          • Oct 2017
          • 11
          • USA

          #24
          Re: LG plasma logic board blink code

          Originally posted by Poor Flick
          Chood2, I got your email but I thought I'd post the reply here, maybe it will help others also.
          I never found an answer to my flash code. What did happen is that I replaced the power supply board and got my panel to come mostly on with no sound. Replacing the logic board got my sound on. In the process I didn't see a defect in the end of a ribbon connector, causing the blank spot in my panel. I continued troubleshooting by pulling off the skinny long metal cover on top of the ICs along the bottom of the panel thinking I would test for power on the boards. What I didn't know was the metal cover is a heat sink and when I powered it up to do voltage checks, the ICs overheated and my panel was then junk. At the time my TV had a few weeks of warranty left and after a honest talk with a repair shop, I got a new panel installed for almost free.
          Closer inspection of things showed a tiny burnt hole in a chip on the logic board, I never could figure out why my power supply was bad.
          This was my first try at fixing a TV.
          Thanks for the updates. I really appreciate this! Going to trek forward and try to find something wrong with the board I can fix...

          Comment

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