We moved our TV from one venue to another. It worked fine before it was moved. Now we have zero power! We have checked the cables: they are connected correctly and the power source is reliable.Not even a pilot light shines on the bottom of the screen.What could be the problem?
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Re: LG 42" Plasma Faltron MT-42PZ91M
Try a power drain and if this doesn't work, it appears the power supply is defective or is not connected to the mainboard. If the connection was poor, simply moving it may have dislodged it and service would be required to reconnect it. Try the power drain first:
1. Unplug the product's power cable so that the device is not grounded to the house. Do not simply turn off the power-bar if one is in use. 2. Press and hold in the products power button for 1 minute to release the retained electricity from the capacitors and circuit board.
3. Plug the product back into the wall outlet rather than a power-bar to rule it out of contributing to the problem and turn the device back on.
Hope this works for you.
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Most likely what happened is one of the capacitors went bad. When a capacitors goes bad it produces a popping sound. This could be an easy and cheap fix if you find the bad capacitor or capacitors. The bad capacitor will have a bulging top most likely on the power board but could be anywhere.
I'm not really sure what causes this but I might be able to help. I have an LG 42 plasma which had the same problem. In my case I removed the video and the tuner board (they both were mounted on the same frame which was screwed on the tv chassis) and installed them in a "wooden box" so that there would be no electrical contact with the rest of the chassis except from the cables connected to them. It now works fine.
I wish I had an answer for you but I'm in the same boat. I've got a 42pc5d and it's doing the same thing. I'll turn it on using either the remote or the power button on the unit itself. The LED will blink either two or three times, then shut itself off. I tried plugging the unit into a different outlet. I tried unhooking all inputs (PS3, DVD player, antenna, etc). The tv was still shutting itself off. I called tech support and the lady who answered asked me if there was a power button on the unit. Well, of course I understand LG has hundreds of models but I felt like I was dealing with someone who didn't care enough to even open the manual to see for herself. Anyway, after a "reset", the TV is now nothing more than a very expensive paperweight. To say I'm displeased is an understatement.
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.
check all inputs on tv ,also check if menu on tv is working ,make sure lines arent being produce by another source, cable box etcc..If menu and or OSD are affected .Then there is a good chance you have lightning damaged some where in signal section on tv .
first i would try unplugging it for about 5 minutes to reset the set. after that i would need more detail as to the problem is there sparkles in the screen is it a certain portion of the set any info you can give