My Beogram RX has been unused for several years. Installed a new cartridge today and was shocked to find that the speed was much too slow. On a crazy hunch, I set the speed to 45 rpm and tried it on a 33 record. It sounded right!

Is this more likely a belt problem or a control problem? Advice, please.

I doubt it is the belt. The motor will be running slow. I would start by running the deck for a few hours at 45 - see if it speeds up! There are controls to alter the speed but I only have the service manual for the 1800 though I am pretty sure the RX was very similar. There should be two holes on the bottom of the deck which lead to some variable resistors that will change the speed. however I think it likely that the motor needs servicing and probably some electronic components need replacing. Where are you based? - we might be able to recommend a helpful service source.

Welcome to Beoworld. 

Thank you, Peter.

I am in the mid-Atlantic region of the United States.

2mojo2