My Ipod won't turn on. (7thg) PLEASE HELP ME!!

7th generation, no known damage done too it.

it worked fine, untill up to a couple of days ago.

it won't turn on, and it won't reset. It still connects to the computer fine, but thats it. it still syncs, and i've tried resetting it through itunes. it didn't work. the second it's unplugged, the screen goes black and completely unresponsive. it won't play music. I don't live near any apple stores. can anyone help me?