usp440m-42lp - Issue starting from warm

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  • tmcw
    Badcaps Veteran
    • Oct 2010
    • 382
    • Ireland
    #1

    usp440m-42lp - Issue starting from warm

    Someone from work asked me to have a look at their 42" Tevion branded Plasma TV.

    The set starts ok from cold, but if left on for 3 or 4 hours, and then switched off, and then tried to start while the set is still warm, it won't switch on. And even the red/green LED at the front won't illuminate.

    If the set is left for a few hours to go cold again, and started, it will start up ok. LED at the front comes back on too.

    I've opened the back, and no signs of any bulging caps, or any other damage for that matter.

    Parts inside seem to be mainly LG boards, and look the same as posted in the other similar threads for this PSU.

    https://www.badcaps.net/forum/search...archid=8188591

    I've gone through those threads, but no one is having the same problem as I'm seeing with this set.

    Any ideas where to start on this issue?
    Tags: None
    • dskall
      Badcaps Legend
      • Oct 2016
      • 2905
      • usa
      #2
      Re: usp440m-42lp - Issue starting from warm

      Sounds like you are losing standby. Try cooling components when tv won't come on till you see led come on.
      I assume no responsibility for any stupid suggestions I might post.

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