dr*audio
Fish fingers and custard!
Look on the disc motor, there will be a manufacturer name and part number. Google the part number and you may find one for sale. The height of the disc table is critical. Before replacing the motor, measure the height with feeler gauges or find some object, a nut, several washers a piece of wood, that just fits between the table and the chassis. Then use a screwdriver against the neck of the table to pry it up. Don't pry against the top or you will warp it. Replace the motor making sure the wires are connected to the same terminals. Apply a small amount of wood glue to the top of the motor shaft to make a non permanent bond. Put your gauge between the table and the chassis and press the table onto the shaft until it hits the gauge.