So, you have turned your computer on, and then saw it start up as usual but then suddenly it went blank. So you decide to restart it for some odd reason, but then figure out that there is a problem.
Your problem is: The Inverter (connects the power to the bulb) is dying.
Your solution is: Open up you LCD panel and change the inverter.
Continue with this instructable to fix your screen.
Step 1: Open up the LCD screen
Take you screen turn it over and unscrew all the back screws. then carefully take of the back plastic panel, it is usually gripped on very well, so i would recommend taking two flat screwdrivers and slowly prying it open.