Check the speaker/s first. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience. Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/
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Not as though we have not been able to have sound since the TV was purchased 7/2/07 & has worked perfectly. The picture is great& can change channels fine. Have hit the mute button & moved the volume up & down but still no sound.
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