Apple TV/FM Radio System - Manual (Page 17)

6 There is a wire handle on the back of the logic board. Swing
it down and use it to pull the logic board toward you.
The logic board is plugged into a slot inside the computer,
so you may have to brace the computer with your other
hand and pull firmly at first. Slide the entire logic board all
the way out of the computer.
Wire handle
10 Chapter 1