42lg50 computer like sound and flashing display

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  • tomcat5512
    Member
    • Apr 2015
    • 12
    • USA

    #1

    42lg50 computer like sound and flashing display

    The top and bottom half of my 42lg50 was flashing static In-between good pictures. I replaced the T-con and the TV works fine for five minutes. Then the picture flashes and the TV makes sound like a very old computer game. I changed the power board and there was no improvement.
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    Last edited by tomcat5512; 09-03-2015, 08:02 PM.
  • tomcat5512
    Member
    • Apr 2015
    • 12
    • USA

    #2
    Re: 42lg50 computer like sound and flashing display

    Here is the system layout.
    Attached Files

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