Question about Daewoo DP42SM 42 in. HD-Ready Plasma Television

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DP42SM image very dull

Help needed. My Daewoo DP42SM now shows very dull images. I have maxed out the contrast settings all to no avail. DP42SM is just over 26 months. Suggestions welcome.

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  • George Okorie Oct 21, 2007

    Thanks Shuttle83.

    How does one adjust the backlighting as you have suggested for the DP42SM.




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The daewoo DP 42SM has ugly picture like GHOST in human. Recently, I tried to elimiate the green dots, red dot scatter around the screen, I adjust Vs, Vdd...etc, however there are still few dots on the screen, I re-adjust again, for some reason my crew driver touch the board and make the picture worst one that I ever seen, does anyone know what the problem is? did I shorted a diode, mosfet..transistor..etc? Do I need to replace the whole board, I hope I did not cause to burn out plasma elememts...Thanks for your help, please email to

Posted on Dec 19, 2007

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What might be happening is the backlighting and or its circuitry is going bad.

Posted on Sep 21, 2007

  • Henry McKelvey
    Henry McKelvey Oct 21, 2007

    The backlight is an internal control, and the root problem should be found, and not adjusted to. The cause of the decay of your backlight should be investigated first. Adjusting will only lead to eventual burn out of the plasma elements. If you wish to troubleshoot this issue I'll be willing to provide some starting points as long as you have a background in eletronics. If you do not have a background in electronics, I would suggest that you have the set looked at by a qualified electronics repair technician.


    I hope this helps,

    Thank you,




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