My Beogram 5500 has been fitted with new drive belts, and a newly refurbished cartridge from Axel. Everything worked well until I tried to play a 17cm record. The player didn't recognise the smaller record, and dropped where it should for a 30cm record. Not good.
I have looked at the service manual and searched Beoworld but I can't find anything to tell me how the player detects record size. Looking at the schematic, there are some switches which may be the switches on the main PCB activated by the mechanics. But how does the player detect record size?
And how to fix it so the stylus only ever contacts vinyl?