LG Plasma 50PS80ED problem

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  • Crackers_c
    New Member
    • Jan 2012
    • 3

    #1

    LG Plasma 50PS80ED problem

    We have a LG Plasma tv. Model number 50PS80ED. The tv will turn on but instead of a lighter grey screen appearing as it boots before the image displays, it comes up with a very bright grey screen which remains for half a second then it reverts to a bright white screen with like pink smudges through it for a further half a second before the tv turns back off to standby.

    It happens if you use the remote or the button on side of telly.

    Same problem happened about a month ago but after leaving it unplugged for a couple of days it's worked ok up to now however I've tried to leave it unplugged for a few days again to no avail. Telly is about 2 years old so just out of warranty...
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #2
    Re: LG Plasma 50PS80ED problem

    Have you got a camera? Take the cover off and post some pictures. There are several faults that can cause this. I'm placing a bet on some bad caps.
    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

    • Crackers_c
      New Member
      • Jan 2012
      • 3

      #3
      Re: LG Plasma 50PS80ED problem

      Here are some photos of the boards inside, 1 general photo then a closer one of each of the boards. On quick inspection, i couldn't see any capacitors or components that look obviously dead. Checked voltages while i had cover open and the main voltage of 5 is running at 5.09, 12 is running at 12.09 and 17 is running at 17.11.

      Thank you...
      Attached Files

      Comment

      • tom66
        EVs Rule
        • Apr 2011
        • 32560
        • UK

        #4
        Re: LG Plasma 50PS80ED problem

        What about the Vs and Va voltages? (Be careful when measuring these - they are around 200V and 60V.)
        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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