Re: Laptop LCD not working
Doubt he needs a new motherboard. More commonly on these old laptops, the assembly responsible for the LCD fails, and while it's better than the motherboard failing, it's not cheap to replace in a lot of cases. You can still sell the laptop online, but mention the problem with the screen. Obviously won't get as much for it. There's a big market for parts laptops.
If you get video while connecting it to an external monitor, it's not the motherboard - look at getting a replacement inverter, or even an LCD power module.