Sometimes when I open the drawer of my Beogram CD 5500 it reaches the end on then it rectracts a little bit. A second later the drawer closes.

The times it works properly, it can hear some kind of tick, like a miniswitch. When the drawer fails and closes, I can't hear the click.

Can anybody tell me where to look in repairing this?

change the belt, also the micro switch may need cleaning with a p1200 grit and contact cleaner (carefully) as they tarnish, plus when the door is half way open make sure the same micro switch is centered, they can get bend over time

How can I get a replacement belt?