Yes....model 42px5d......has worked flawless and quit like it was unplugged.....red light still on on bottom right but thats it!
Y-Sustain board or driver board should be suspected. Just check this link and select the site named 'Eelctro-help'. There are detailed description about most of the faults that can occur to a plasma tV. Functionally all plasma TV s are the same, except in brand name.
SOURCE: SCREEN FOR LG 42PX5D 42 in.
I have dealt with Lg in the past regarding screens and they are unable to sell them as a spare as they are so expensive, they are only used in production and a complete new HD TV is cheaper to buy than a screen. for example LG37LP1D £900.00, a replacement screen £1500.00
SOURCE: 42 inch LG Plasma TV - Lost picture
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.
SOURCE: LG flat panel plasma with red line
I had the same problem and fixed it by replacing the control board. It's a little nerve wracking, but required only simple hand tools. If you'd like to see detailed pictures of the repair check out my blog.
http://greenrenovation.wordpress.com/du-42px12xc-repair/
SOURCE: 42 inch LG Plasma TV - Lost picture
This is almost certainly the device that sends electricity to the the plasma in the panel after failing. Bring to your local repair shop and expect to pay 300-400 parts and 100-200 labour.
Cheers,
Stephen
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