Have had ntl hdi added to my tv through virgin media.after half an hour the sound becomes distorted and becomes not watchable.if i put it onto digital tv there is no problem.virgin put a new box and cable in but problem is the same.i turn plug off and it is ok again for a while.thanks craig
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The plasma gas tubes may be damaged or the gas couldve leak out. remember plasma have to remain upright at all times even when transporting them, if they are not you should just set it up straight for about 3-4 hours before turning it on.
I've been finding quite a few HDMI related problems over the past year and it seems to be increasing.
The problem usually is due to the cable being somewhat heavy. The plug sticks straight in and hangs. The weight of the cable uses the downward momentum and starts ripping the solder connections from the televisions HDMI input.
When the audio becomes distorted, try moving the cable and see if it clears up. If it does, then, that's the problem. If not, then the problem is more than likely the audio circuit.
Either way the Main PCB needs to be replaced.
After replacing the Main board, I suggest using component inputs instead (Same quality picture, just more cords), because, the chances of another problem caused by HDMI is likely.
Hope this helps.