Question about Dell W4201C 42 in. Plasma HDTV

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No output from right side speaker jack

Was adding external speakers to my Dell W4201C plasma TV. Both were working well. While mounting the speakers to the wall, the right side speaker wire got pulled tight, and sound quit coming out of both speakers. I unhooked the right speaker to deal with the wire length, and the left speaker sound came back on. When I plug the right speaker back in, both lose sound. This is repeatable.
I checked the speakers, and they both work fine if plugged into the left channel jack individually. I measured the resistance of the speaker jacks on the TV and found that the resistance is pretty low (200-300ohms) on the left side output, but the resistance is open on the right side output.
Any ideas....?

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  • ejb747vh May 21, 2009

    Well, since this post, I have lost picture quality - looks like very bad contrast, and have a couple of very large black splotchy areas.  Thus, I have not tried to remove or repair the audio board.
    If I can get a little guidance with the video issue, I will work on both at the same time.  Appreciate the help.  Thx

  • ejb747vh May 29, 2009

    I replaced the main logic PCA LJ92-01270E and that did not resolve the video clarity problem.  I was able to go thru the menu and put the TV into "Plasma Conditioning" Mode.
    There is a huge black patch in the upper left corner and another about a 1/3 of the way from the right side.  Each extends from the top edge at least 12".  In the lower left corner, there is another patch, but not black.  The rest of the top half of the screen is white with red dots dancing around in it.  The bottom half of the screen has pink/red horizontal lines overlaying the white background.
    Is the plasma screen toast ?
    Is this what they look like when they fail ?
    Please help !

  • Chi Chu Aug 09, 2013

    Yes,the plasma screen is damage to caused this problem.This problems u are discribing sound like the tv it drop from the table stand or the wall mount

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Audio board located inside the mainboard console to the right trace your speakers wire to bd, disconnect the three leads, 3 phillips screws, and examine bd for burns. If yes, ebay the board id for a replacement.

Posted on Apr 28, 2009

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