Hi,
I haven’t got an answer to your question but I posted a very similar problem yesterday regarding my 7007.
Mine will start on 45rpm with both 7″ and 12″ records. I can however change the speed to 33 by pressing the 33 button.
Interestingly though, it goes back to 45 once the end of the record is reached during the auto return of the arm procedure.
If I get a reply before you I’ll let you know!
Cheers,
Colin