Problems with laptop?

I have an ecs laptop and until recently worked perfect, the other day i went to plug the main power line in and nothing, i have tried the battery pack and nothing, i have been told that it might be the motherboard. any ideas, how i can check this out, and fix the problem.thanksplease not i have no internal battery
Answer
Drop it down a flight of stairs, claim on your insurance and then buy a new one!