Easy. Just mark the 4 holes in the wall where the 4 feet screw into the turntable, and attach some metal slotted brackets to the wall (like you use for hanging a dart board).
4 of these on the wall:
Attachment 17279
Then, find some srews with the same thread as the feet of the TT, and screw them where the feet would usually go.
Offer up the turntable to the wall, and slide the 4 screws into the 4 small, slotted brackets.
You'll be able to lift them in and out as you please.
You'll need to secure the platter, too. That would make a helluva noise if it fell off! :cursing: