Hi! I got a full Beosystem 6500 setup from my uncle that I'm trying to restore, starting with the Beogram. After replacing the drive belt and untangling the string I got the unit working, almost... All the functions work except that the stylus gets stuck in the same groove after about a song. The tonearm is still parallel to the sensor arm at this point, and if I lift the arm the motor follows my movements. I also checked that the senor light bulb is working. Could it just be that it needs new caps? And if so any good guides on which and where (in Europe) to buy, because I can't find any kits unfortunately. The sound quality also sound a bit poorer than expected, it's a bit scratchy/crackling/muffled even with new record. Could it also be the caps, or is the stylus too worn?