I got this laptop with a smashed screen. when i booted it up the backlight came on . connect hdmi and all is good. laptop works fine so i bought a new screen but just before i fitted the new screen the backlight stopped working.I fitted the new screen and everything works fine bar the backlight.Thinking i may have damaged the screen cable i replaced that too. Long n short laptop works great (you can see whats on the screen with a torch) but no led.f5 turns backlight on/off according to info on screen n fn plus up n down raise n lower brightness again according to info on screen but to no avail.does anyone have a schematic for the mother board or know any fuse location on the motherboard? Any help will be greatly appreciated