11.Grasp the logic board near the AirPort Card carrier and gently lift the board up, as shown below, being careful where it catches on ports, back panel mesh liner, and disconnected cables.
If necessary, open the panel door and press on the ports to free the logic board from the back panel.
Important: Lift the board just enough to access and disconnect the secondary fan’s connector on the logic board before removing the board.
Replacement Note: When reassembling the computer, make sure the replacement logic board ports align completely with the openings in the back panel.
Replacement Note: When positioning the replacement logic board into the computer, check that cables and connectors do not get caught under the board. Tilt the logic board toward the back panel, and place the following cables into the notches in the board:
•Power switch cable (reapply tape over the cable, if applicable)
•Sleep LED cable
•LVDS cable
•Audio cable