Acer Apsire 4520

I have an acer aspire 4520 and while using (normal usage with camera plugged into a USB port) when it turned off (randomly).

I turned back on and the screen stays black.

(the power and battery light came on... as well as the computer).

I have tried it with just the battery and without the battery and get the same result.

(sorry if this description isn't the best... i'm not technically savvy).

I've had another acer "die" on me (the motherbord went out...). This is a pretty new laptop and has very mild usage.

I don't know if a button was pressed but of course I have tried them all.

Any suggestions?