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Can it be heard with sound off and describe the sound a bit, buzz or high pitched sound? Not unusual for the front screen unit to make a slight buzz but I gather this is loud.
If there is no picture but sound is audible then replacing the projection lamp will do otherwise, the TV requires to be diagnosed for any other hardware damages.
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.
just might be the bulb. Have you unpluged you set make sure its cooled down and remove the buld examine the bulb ussally when the bulbs go bad they shatter not always but it good to check them out as the first step
Our LG 50" plasma tv screen went black after a popping noise but still had sound, after great diliberations decided to take the back off and have a peek!
We unplugged the tv and tested the fuses (there were three we could see) one had blown, the one on the left as you look at the back of the tv it also has one above it. We wrote the code/seriel number down and took the fuse to the electrical wholesalers Maplin and bought a pack of 10 fuses for £1.29 replaced the fuse in the tv and everything now fine!!!!!!
Hope this might be of use to anyone whose lost the picture after a loud popping/snacking noise but still has sound.
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