How can I fix my CD player & make it work again?

My CD player IS kind of old, but it was working fine & all of a sudden, one day when I went to play a CD - it wouldn't do ANYTHING at all !! The lite comes on like it's going to work - but when I hit the play button, it won't spin or do anything. (??)(It's an AIWA - 1995. It's a CD/cassette player/ AM/FM radio combo. thing) What's really strange is my sister got one of the same kind, at the same time as me (Christmas 1995-?) & hers did the same thing......just stopped working!!!