6 CD Player/Changer Not Working
 

This is the second time my CD player has just stopped working. It blinks NO DISC no matter what I do. No cd's will come out or play, and I can not put any in.

The last time this happened the dealer took out the whole unit and it took forever to get everything fixed.

Is there something I can do myself?? I really don't want to go back to the dealer again.