Acer 4720Z will not start

sory if this isn't the right section for this, i'm new to these forums

Acer 4720Z is unable to boot.
I was cleaning they keys i pushed down on the space bar to set it back into place. i must have pushed too hard or something because the Acer made an ugly buzzing sound gave me a blue screen then shut off. i finished setting my keys up and tryed to reboot, at the first pop up menu (the one that says "windows did not shut down properly" ) i picked "start up normally". about 15 minutes later the entire system froze and i had to power down.
now it dose not give me any user interface at all, only a black screen. the little battery light dose not show up eather, unless i have it pluged in (in wich case it shows orange instead of green). dose anyone have any ideas how to fix this?