WLAN module
Component Spare part number
Realtek RTL8723BE 802.11b/g/n 1×1 Wi-Fi + Bluetooth 4.0 Combo Adapter 753078-005
Before replacing the WLAN module, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the keyboard/top cover (see
Keyboard/top cover on page 19).
Remove the WLAN module:
1. Disconnect the WLAN antenna cable (1) from the terminal on the WLAN module.
2. Remove the Phillips PM2.4×2.8 screw (2) that secures the WLAN module to the system board. (The
WLAN module tilts up.)
3. Remove the WLAN module (3) by pulling the module away from the slot at an angle.
NOTE: If the WLAN antenna cable is not connected to the terminal on the WLAN module, a protective sleeve
should be installed on the antenna connector, as shown in the following illustration.
Reverse this procedure to install the WLAN module.
WLAN module 27
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