Now the tricky part is done, even if you won't be in peace until you pull it alla back and listen to the sound of you beloved system again.

It will happen again !

You can now access the four screw securing the tape deck mechanism. PZ1 screws.
If you need to push from the other side to unscrew stuck screws, take care to not touch the beauty part of the front facing or use coton gloves. 

Now the tape deck mechanism should be free to be removed.

Follow the youtube tutorial to change the belt.

https://www.youtube.com/watch?v=JnAD5PbyBGA

Now, i come with a problem on the two BS i changed the belt. Even after replacing the belt the tape deck won't play, like still stuck.
I believe it's because when the belt broke or melt or whatever, the mechanism was in a certain position in the middle of something which need to be like reseted.

What i did is turn the main (big) wheel with the hand to what i call "the point beyond you think it will break".
Trust me when your BS will be up and running, you will remember it at the worst moment of all the fixing procedure!
But if you turn the main wheel and it dont spin freely you will have to do it until you hear a big "Clac" and it spin freely again.

Now it's done. Just do all the steps backward to re-assemble the BS.
Be careful, you're excited to see it working again, but now is very the time to be very careful.

Good luck to you all.

Hope it will help some people around…

A good old pictorial workshop! Thank you for the effort, I'm sure this will be useful to many people. 🤒

But CB is right, the "Workshop" subforum is exactly made for this kind of content. I'll move the thread, hopefully nobody will lose track.

Good DIY !

Big thanks !

A really excellent pictorial DIY. Love it! And I wish I mastered writing in French as you do in English. Bravo. 👍

Thanks so much for this information.

Can you perhaps be more specific which wheel to turn in which direction? My Cassette mechanism shuts the whole Beosound off after a few seconds. With the old belt that didn’t happen.

Marcian wrote:

which wheel to turn in which direction?
My Cassette mechanism shuts the whole Beosound off after a few seconds. With the old belt that didn’t happen.

Sorry for asking, but where did you get the new belt from?

Martin

Marcian wrote:

Can you perhaps be more specific which wheel to turn in which direction?

Dillen is right, it's the big flywheel next to the motor. I think it's actually the only one you can spin by hand once the mechanism block is put back together but I may be wrong, I can't remember well. Nevertheless, once it "Klang", you must be able to spin freely the black parts which move the tape reels.

Just in case, maybe you should check the belt path. It coud be maybe wrong and make the belt stuck.