LG Plasma 60PB5600 Logic Board no light

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  • fconsela
    Member
    • Jul 2018
    • 15
    • United States
    #1

    LG Plasma 60PB5600 Logic Board no light

    Hi all - have something that I havent read about on this site.

    Have this LG thast has no video, bad Y-upper buffer (at least).

    However, when turned on - the green light on the Logic board (EBR77186601) never illuminates, no blinking either. I know the light works as when I probe it in diode mode it come on.

    Would a bad Y buffer and/or Ysus keep prevent the Logic board from coming up? This even happens when I disconnect the logic board to try and jumper EXT_AUTO_GEN (also no test patterns) - never does the light come on.

    Where to begin?
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    • Andrew F. Ali
      Badcaps Legend
      • Jan 2014
      • 2450
      • Trinidad & Tobago
      #2
      Re: LG Plasma 60PB5600 Logic Board no light

      Is the Logic Bd. getting 5V from the Y-SUS Bd?

        Comment

        • olivier.gendron@gmail.com
          Member
          • Aug 2018
          • 18
          • Canada
          #3
          Re: LG Plasma 60PB5600 Logic Board no light

          ES1432 flat cable seems to not be connected properly

            Comment

            • R_J
              Badcaps Legend
              • Jun 2012
              • 9553
              • Canada
              #4
              Re: LG Plasma 60PB5600 Logic Board no light

              P231 does'nt look like it is connected properly either.

                Comment

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