Diamond PE 66 Turntable in Blaupunkt Valencia Deluxe will not spin after I push the start knob. When I push the start knob the handle jumps up and nothing else happens. I try to move the table but it is stiff. The arm moves when that happens. Once the arm hits what would record post (wisselas) it return and then the turntable can move freely. The motor runs i put lithium lubricant on the moving parts and nothing.