Could be the power amp I.C., it should be mounted on a heatsink (piece of aluminium), next time the sound goes, unplug the tv and see if the audio I.C. is very HOT, careful where you stick your fingers, there are lethal voltages in the back of tv sets, best to try one of the `freezing sprays` from tandy or similar stores, spray the amp when the sound goes and see if it comes back. |