My dad has a Sony PCG-F430 laptop that's screen went out about a year ago. I'm not sure if the entire LCD is out, or if it's just a inverter or video connection problem. The backlight seems to be fine because powering on the laptop all you see is a white screen. Using the VGA out, you are able to use the laptop on another monitor. I am wanting to fix the laptop's LCD and make some upgrades to the laptop so that I can use it since it's basically just sitting around. What are some of the things I should check if the screen seems to be having power to it (maybe it's not enough? Power inverter issue?) and I am able to see the white, which I assume is from the backlight, but not recieving any video?