How Do You take off the turntable

The mat can be removed from the platter. Under this there are often holes through wich you can see the belt and motor. The belt should have some play in it but if it pulls away easily it probably needs replacement. Sometimes there is a C shaped clip holding the platter on. If so remove it and lift the platter. Otherwise the platter just sits on a bushing around the spindle. Lightly lift the platter and if it still doesnt come off you can LIGHTLY tap the spindle while lifting the platter and that should free the platter. If it is in one piece measure it lay it flat and measure it end to end and then double that measurement. The most common is 23.6" however there are 20.7", 25", 28" and 38.8", MCM electronics has them for a few bucks each. Simply place it on the inner ledge on the bottom of the platter and stretch over the motor pully. If the speed seems off check the placement on the bottom ledge and the pully. The belt if places d too high or low can ride up the pully to the top where its wider and make the table fast.