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 42 plasma power problem
needs power supply Part number 6709900023A
it is a 171 dollar part, you should be able to order through LG,
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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Before IM turn on my LG42 plasma, removed all cables from the PSU power supply board 3501v00077B/pw-1450, who joined the Main AV input signal smal 6870vm0261c board and LVDS T-CON DRIVER / LOGIC BOARD 6870QCE002D, fuses remain healthy, they say to add any contact step by step, and switched the nameplate attached to each contact, the most is the order of up to enclose the last contact at Main AV input small signal board.Izdeg fuses TV, power cord, and the home closet.How do I know which board is short circuited fault is a single detail!, Thanks .....
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