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WLAN/Bluetooth combo card
The computer uses a card that provides both WLAN and Bluetooth functionality.
The WLAN module and WWAN module are not interchangeable.
Description Spare part number
Intel Centrino Advanced-N 6235 670292-001
Atheros AR9485 802.11b/g/n 1x1 WiFi Adapter 675794-001
Atheros AR9565 802.11bgn 1x1 WiFi + BT4.0 combo Adapter 690019-001
Ralink RT3290LE 802.11bgn 1x1 Wi-Fi and Bluetooth 4.0 Combo Adapter 690020-001
Realtek RTL8188EE 802.11bgn Wi-Fi Adapter 709848-001
Broadcom BCM943228HMB 802.11abgn 2x2 Wi-Fi + BT 4.0 Combo Adapter (Intel models only) 731550-001
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 battery (see
Battery on page 36).
5. Remove the service door (see
Service door on page 37).
Remove the WLAN module:
1. Position the computer upside-down.
2. 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.
3. Remove the two Phillips PM2.5×3.0 screws (2) that secure the WLAN module to the computer. (The
edge of the module opposite the slot rises away from the computer.)
Component replacement procedures 45
55


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