My CD 50 has stopped working. When I put a cd in the cd-tray and close it, it opens again and nothing else happens.

I had the same problem with mine. There are some contacts which detect if the CD tray is closed with a CD. I just gave them some contact cleaner (deoxit), and the machine came to life.

-Søren

Do I have to open the CD 50 in order to find the contacts or .....

It is easy to open the player, just the two screws in the back in each upper corner. Then you can slide the top cover off.

I have the top cover off, but I can't locate the contacts. When the tray slides in with the cd the cd doesn't rotate. It just raises a bit, stay in that position for 5 sec, falls down again and the tray slides out again.

A common problem with this model. Have a look at this thread:

http://forum.beoworld.org/forums/t/30607.aspx

Maybe this will help. In the photo you can see two sets of contacts. an upper set and a lower set on the left side.

I would look at the lower set on the left side. I had one with the same problem and cleaned and adjusted that set of contacts. solved the problem and it hasnt been a problem ever since. I really like the sound the CD50 produces and I also think it looks a little better than the later versions.

Worth fixing if you have the time and patience fro fiddly type work. If not look into a CD 5500.

Eugene:

Maybe this will help. In the photo you can see two sets of contacts. an upper set and a lower set on the left side.

I would look at the lower set on the left side. I had one with the same problem and cleaned and adjusted that set of contacts. solved the problem and it hasnt been a problem ever since. I really like the sound the CD50 produces and I also think it looks a little better than the later versions.

Worth fixing if you have the time and patience fro fiddly type work. If not look into a CD 5500.

Thanks Eugene. I have been away for some time so I had not seen your reply. I have loosened the four screws that hold the laser, but I can't remove it because of the four black "hooks". Anything else I must do?

Remove the block hook at the front of the player facing outside (easiet) and you will be able to jiggle the laser block out and expose the gears and contacts.

Give everyting a good cleaning.

I use deoxit on the electronic components then Isopropol on everything else

I was thinking from memory that the contacts are visible when the laser block is al the way forward at the start play position.

I have located the problem to the contact which is driven by the big gear wheel. It seems as if the wheel doesn't turn enough to force the contact to the other side, but leaves the contact in the middle.

Ok  then,  did have one player where the flywheel had slipped loose from the cam underneath. Had to fit the two back togther and realign the flywheel so that everything would open close and load in proper sequence.

As I recall it was a fairly easy fix.

The other possibility is the contacort is out of kilter a bit. I have had that happen as well.