No power going to LG 42 inch plasma, tried changing fuse in plug and tried a different power lead and still nothing (no standby light etc)

Kindly disconnect back light module & try power on , if fail try change any bulged capacitor ,then your VA output should have 5v, 12, & 24v if not present please change your power supply

hi this fault could be down to capacitor in the power supply, they bulge or go leaky, you need to take the back off the tv, to have a look. try and find a tv tech in your area hope it helps

regards
shaun

There is a internal fuse on the power supply board. When you plug in the set, does the standby light come on?

I also have a problem with the same tv unit, the cable is plugged in and there is no standby light and nothing on the screen. I have changed the power cable to the tv and still no look, anybody got any ideas? I have also tried that button at the bottom corner of the tv and still no difference..

Check to see if you get Va and Vs voltages from the power supply. There should be some wires running to the y-sus. A couple of those wires will be labeled va and vs. Are they present? There will be a sticker stuck to the panel somewhere telling you what they should be.

Check the wall source plug and see if you have power there.
If yes,Then it may have a blown fuse in the power supply.

Ur video inverter controller is dead,the board between the power supply board and main video backlight board.

Sure, you will need to replace the power supply circuit board asap. this will fix your issue.

Unplug the unit and let it sit for a minute. When you plug the unit in and try to power it is there any change in the light? Does it go green and back to red or just stay red?

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.