Power on de red to green no picture no sound black piocture

SOURCE: TV Picture Goes Black

I had the same exact problem.
I removed the bulb and cleaned it. There is a small screen at the top of the bulb and it was covered with dust. Once it was cleaned I replaced the bulb and it solved the problem.
Thanks to those who posted the solutions

SOURCE: TV powers off after 10 seconds of powering on....

Thats great, Please rate solution.

SOURCE: 37 INCH LCD HD NO PICTURE GREEN LIGHT ON, BUT NO SOUND

Unplug and replug it...it should work eventually.
I have the same problem with my 32".
But it eventually goes on when i try it a couple of times (the number of times is completely random...sometimes none, and sometimes like, 3).

SOURCE: LG TV won't turn on. Power light flashes red/green.

Hello,

Power supply board just die.It can be dead at anytime.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Testimonial: "good advice"

SOURCE: LG 32" Plasma TV power-on problem

Hello,

Your power supply board is dead, u know basic electronics’ and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
hope this helps...