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TV went out durring storm.It will power-up ,has dim lit screen,no video or audio.Have found no fuses blown or visual damage.If you haven't worked on this model with this type of problem then please don't just give a vague answer like i have been given like "Probably has a blown part inside" That is not a Expert Response. It's gona be a board,likr maybe the H SC or DG. Thanks rioconcho Panasonic Plasma TH-42PX60U

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I have worked on your tv many times.
if you can see that the screen is lit up somewhat, then you probably have voltages and scan (power board "P" board, scan board "sc" board), and other board are usually ok. if you truly had a surge, it came in through power or cable/video inputs. with your symptom, it likely did not come in through power, or you would just have a dead set. if it came in through your video inputs, it will usually just fry the video (main) board. we can look up the board part #s and "exact names" when we figure it out, but first we need to confirm.

can you see your tv menu?

does rebooting the tv "hard boot" snap it out of the issues?
-unplug AC power for 2 minutes, plug in, wait 30 seconds and turn it back on.

answering these questions will narrow it down.

also look closely at the screen, if you can see it kind of light up, but dont see any pixels "mis-firing", it just looks like a dark screen, then your power and scan and sustain boards are all likely good.

let me know, we can fix this

Posted on Jun 05, 2010

  • 1 more comment 
  • earl mccain Jun 05, 2010

    Have tried to restart TV by unplugging,waiting,then restart,no luck on restart.Also menu will not pull up.I can turn set on and the whole screen does faintly lite up evenly all over the whole screen.

  • earl mccain Jun 05, 2010

    Have tried to restart TV by unplugging,waiting,then restart,no luck on restart.Also menu will not pull up.I can turn set on and the whole screen does faintly lite up evenly all over the whole screen

  • thielectronick
    thielectronick Jun 05, 2010

    well, looks like the signal part of the tv set has a few board

    the inputs are on the h board TNPA3769S

    with not menu (osd) you probably have more bad than that, but the surge likely came through there

    you're probably looking at the digital video board
    A20191-P01-H-K1 is the only part number i can find for it

    I would pull all that apart and see if i can find any burnt up parts or blackened traces
    if the surge came through the H board, it probably took that out too

    since there is no fuses or protection on the video side of the tv, surges over there can be a nightmare

    did anything else fail or get damaged by the surge? like cable or sat box?



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