Question about Hitachi 42HDT79 42 in. Plasma Television

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Audio quality My 42HDT79 suddenly has poor sound quality. It is hooked to a cable box.

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  • aldot9255 Jul 11, 2008

    Sound from the midrange/tweeters disappeared overnight, only had sound from the woofers/low freq speakers. Hitachi sent a software upgrade. That turned the high freq speakers back on, but disabled the low freq speakers. Now, the LOUDNESS and BASS BOOST controls have no control of the sound. I've unplugged the set from the wall and re-started it, but that didn't help.

  • Anonymous Sep 03, 2008

    I ,too, have that same problem. Turned on the TV after an overnight and the sound quality is muffled and low. Do not know what to do. Called Cable, but I think the problem is with the TV.

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I fixed it by turning the main power switch off for thirty seconds and then turning it back on.

Posted on Mar 04, 2008

Thanks, It worked!

Posted on Sep 03, 2008

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