HP 550 Maintenance And Service Manual page 52

3. Lift the right side of the WLAN module compartment cover (2), swing it to left, and remove the
cover. The WLAN module compartment cover is included in the Plastics Kit, spare part number
456614-001.
4. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module.
NOTE:
white WLAN antenna cable is connected to the WLAN module "Aux" terminal.
5. Remove the two Phillips PM2.5×4.0 screws (2) that secure the WLAN module to the computer.
(The edge of the module opposite the slot rises away from the computer.)
6. Remove the WLAN module (3) by pulling the module away from the slot at an angle.
NOTE:
Reverse this procedure to install the WLAN module.
44 Chapter 4 Removal and replacement procedures
The black WLAN antenna cable is connected to the WLAN module "Main" terminal. The
WLAN modules are designed with a notch (4) to prevent incorrect insertion.