@Varthall:
"BTW how much difficult are LCD screens to repair? They should be much safer to mess with as no high voltages are involved. Has anyone tried to repair one?"
Don't you believe it. The backlight /behind/ the LCD screen uses about 200 V ac to work. You can get a nasty shock from that, but I don't know what sort of power is involved, probably a couple of watts. You'd probably get burned by it (it's high frequency).
tony