Maintenance and Service Guide

WLAN module
For a list of available WLAN modules, see Illustrated parts catalog on page 5.
The WLAN module is located on the system board above the memory modules. The WLAN module is secured
with one Phillips screw and has two connected antennas.
NOTE: The procedure to replace the WLAN module must be performed by an HP technician.
To remove the WLAN module:
1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 16).
2. Remove the base unit rear and front access panels (see Base unit access covers on page 17).
3. Disconnect the antenna cables from the module (1).
4. Remove the Phillips screw (2) that secures the module to the computer.
5. Lift the module to a 45-degree angle, and then pull it away to remove it from the socket (3).
To install the WLAN module, reverse the removal procedures.
When connecting the antennas cables, connect the cable labeled “1” (black sticker) to the AUX “1” connector
on the module and the cable labeled “2” (white sticker) to the MAIN “2” connector on the module.
NOTE: WLAN modules are designed with a notch to prevent incorrect insertion.
WLAN module 33