I have one of these that used to be my Fathers. The wireless still works but the turntable doesn't any more.
Could be the belt drive is worn or the belt stretched. On the other hand and to be totally politically incorrect the little black boy, that my dad said was inside to push the records round, has died of old age.
The rubber has gone brittle on the idler wheel thingy off the motor. It is not important as records are never played in these CD days.
BTW, I removed the turntable assembly, disconnected and reconnected all the wires myself without calling in an electrician.
It looked very like an electric hob underneath. . .