LG 42LD490 intermittently stuck in standby

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  • somebodyyouknow
    New Member
    • Jan 2015
    • 2
    • United Kingdom
    #1

    LG 42LD490 intermittently stuck in standby

    The tv when first turned on from cold e.g. overnight will not turn on. The red standby light begins pulsing and a high pitch whine is heard. It seems to originate from the main board. The back light remains off.

    If the tv is left trying to boot like this then turned off and on again it will turn on fully functional. If it is turned off after this and turned on again it may or may not boot up.

    The power board has been replaced in the hope it was the capacitors but it did not fix or change the problem.

    The firmware has been updated to the most recent via USB.

    I cannot find a replacement main board anywhere.

    Does anyone have any further trouble shooting pointers?

    Thank you for your time.
    Tags: None
    • sordids999
      Badcaps Legend
      • May 2013
      • 2158
      • uk
      #2
      Re: LG 42LD490 intermittently stuck in standby

      Posting pictures of the back of your tv showing the boards with clear pictures may help you more with fixing your problem

      although i ended up stripping my 42LD490 due to the mainboard being very rare to source one

      have u tried heating up the mainboard with a hair dryer ?
      Last edited by sordids999; 02-16-2015, 06:50 PM.

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