I am restoring this radio for a friend. The AM radio is working great, the turntable is now turning correctly, but no sound into the speaker when using turntable. I can ear sound coming out from the arm (cartridge), but with my scope and can't see anything form the output. Is there any way to repair or replace the cartridge or arm? Look to be: Shure P93 78 rpm crystal phono cartridge.
Thank you!