42LG3000 LG Television

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  • Berts
    Senior Member
    • Aug 2012
    • 55
    • Scotland
    #1

    42LG3000 LG Television

    Greetings,

    I am new here so would just like to say hi.

    Please could someone offer some advice on a LG 42LG3000.

    I usually fix computers so this is a first for me.

    The TV powers on fine, back-lights are good. A picture can be seen but unfortunately it jumps all over the place but only on the vertical axis.

    I have googled around and found white screen / black screen problems, but nothing on this flickering and jumping picture.

    Any ideas? I will of course try and help some people in the computer section so you know I am not just a newbie freeloader!

    Thanks in advance for any ideas / advice.

    Bert
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: 42LG3000 LG Television

      I would guess a noisy voltage regulator. I have a TV right now giving the same issue and it is a voltage regulator which is oscillating due to bad capacitors near it.

      https://www.badcaps.net/forum/attach...1&d=1344693073
      https://www.badcaps.net/forum/attach...9&d=1344693073
      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

        • Berts
          Senior Member
          • Aug 2012
          • 55
          • Scotland
          #3
          Re: 42LG3000 LG Television

          Hi,

          thanks for replying.

          Would you suggest replacing the power board?

          I cannot see any signs of bloated capacitors.

          Berts

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: 42LG3000 LG Television

              No, check the main board first. Post pictures.
              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

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