Apple TV/FM Radio System - Manual (Page 24)

17 Installing the Card and Software
2 Press the reset button on the logic board. Then gently but
firmly push on the vertical plate until the logic board is back
into place within the computer. You’ll need to push a little
harder at the end to make sure the connectors at the back of
the board are seated in their slot.
Note: If you can’t find the reset button, it may be in a
different location on your logic board. Check the manual
that came with your computer, in the section in the
appendix about installing expansion cards. There you will
find an illustration that shows where the reset button is for
your computer.
1 Press the reset button.
2 Gently but
firmly push on the
vertical plate until the logic
board is solidly back in place.