WLAN module
Description
Spare part number
Broadcom BCM43142 802.11 bgn 1x1 Wi-Fi + BT4.0 HMC Combo Adapter
753077-005
Intel Dual Band Wireless-AC 3160 802.11 ac 1×1 WiFi + Bluetooth 4.0 Combo Adapter
784638-005
CAUTION:
To prevent an unresponsive system, replace the wireless module only with a wireless module
authorized for use in the computer by the governmental agency that regulates wireless devices in your
country or region. If you replace the module and then receive a warning message, remove the module to
restore device functionality, and then contact technical support.
Before removing the WLAN module, follow these steps:
1.
Shut down 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 all external devices connected to the computer.
3.
Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4.
Remove the keyboard/top cover (see
Keyboard/top cover on page 23
). Make sure the battery cable is
disconnected from the system board.
Remove the WLAN module:
1.
Disconnect the WLAN antenna cables
(1)
from the terminal on the WLAN module.
NOTE:
The 1/black WLAN antenna cable is connected to the WLAN module 1/Main terminal.
Either one or two antennas may be connected to the module.
2.
Remove the Phillips PM2.0×3.0 screw
(2)
that secures the WLAN module to the computer. (The WLAN
module tilts up.)
Component replacement procedures
29
