Lift the lid to get to the turntable.

Using the appropriate tools (needle-nose pliers, tweezers, screwdriver, etc.), remove the snap ring from the center of the turntable. The snap-ring is the small metal ring around the axel of the turntable.

The snap-ring is hard to remove so be patient and don't be afraid to use some force.

Feel free to use whatever tool(s) that will remove the snap-ring. The above list of tools are just a suggestions.