Good job guys!! Beoworld rocks!!!

Bad trimmers and/or bad adjustment of trimmers on the volume control board.

Martin

I 'll check the connectors and trimmers and if it's not enough, well, I should resign myself to go down to that "service manual, chapter 5-5, volume adjustement" and try to understand what  "step 0" and "step 30" means😂...here again, it  would be better with a little help from my friends  😕.  Anyway, thanks to you all, gentlemen🙂

Step 0 and 30 are some of the buttons on the front panel.

Martin

Another thought that might be an easy check is to see if the belt is slipping so that the volume potentiometer is not quite reaching the target point and so the servo keeps the motor running. The belts become less grippy with age.  Martin has new belts if you need one.

Too much looking inside makes me forget to look at the frontside! ❓

Yes, I have noticed the belt was a bit sliding after I had put out the motor. So I  cut 2/3 millimeters of the belt, re-glue it and put it back in place. Working fine, but it's cool to know that I would had find such piece here @ Beoworld.