I am under warrenty but I am getting no sound whatsoever.I have troubleshoot this jvc av-56p575 screen tv for several hours no sound from tv whatsoever.I assume my sound chip is bad.The tv does not even make noise on channelless stations when my satt is disconnected.So at this point I assume that this is the problem.I checked all sound setting.Anything that you can assume might be wrong with settings or is it hardware like the sound chip. Tom

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