After working our way around the MacBook Air's main logic board, we should turn our attention back to the case. A small circuit board is located on the case's left side and contains the MagSafe power port, USB port, and headphone jack. Three cables connect it to components remaining in the case. You'll need to disconnect all of them before lifting the small board away from the case.
Photo by: Bill Detwiler / TechRepublic
Caption by: Bill Detwiler