WLAN/Bluetooth combo card
The computer uses a card that provides both WLAN and Bluetooth functionality.
Description Spare part number
Intel Dual Band Wireless-AC 3160 751416-005
Broadcom BCM43142 802.11bgn 1x1 Wi-Fi + BT 4.0 Combo Adapter 753078-005
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. Disconnect the tablet from the keyboard dock (see
Releasing the tablet from the keyboard dock
on page 25).
5. Remove the tablet cover (see
Tablet cover on page 43).
6. Disconnect the battery cable (see
Battery cable on page 45).
Remove the WLAN module:
1. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module.
NOTE: The WLAN antenna cable labeled “1” connects to the WLAN module “Main” terminal labeled
“1”. The WLAN antenna cable labeled “2” connects to the WLAN module “Aux” terminal labeled “2”. If
the computer is equipped with an 802.11a/b/g/n WLAN module, the yellow WLAN antenna cable
connects to the middle terminal on the WLAN module.
2. Remove the Phillips PM2.5×3.0 screw (2) that secures the WLAN module to the tablet. (The edge of the
module opposite the slot rises away from the tablet.)
58 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts