Apple ipod

The iPod will not turn on, what should I do?

Ok, so I just bought a 30GB iPod classic a pawnshop. I made at home and worked very well, I can sync to my itunes, but I have all my music on it and it was perfect. k So I decided to sync with winamp and just leave me and when you reboot is displayed in the Apple for a few seconds, make a crack and then the screen goes black. does it again and again. someone has an idea of what to do or how to fix?

Press the center button and play / pause at the same time to restart. Apple site says the songs clearly UR, but I passed. and charge the iPod is left for a couple of hours and see what happens Watson

Review of 30GB Microsoft Zune [Black; Generation 1] (HD)