HP ProBook 450 G5, Руководство по техническому обслуживанию и ремонту

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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 3168 802.11ac, 1×1 Wi-Fi + Bluetooth 4.0 combination adapter 852511-001
Intel Dual Band Wireless-AC 8265, 802.11ac, 2×2 Wi-Fi + Bluetooth 4.2 combination adapter 851594-001
Realtek RTL8821CE 802.11AC 1x1 Wi-Fi + BT 4.2 Combo Adapter 915621-001
Realtek RTL8822BE 802.11AC 2x2 Wi-Fi + BT 4.2 Combo Adapter 915623-001
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. Place the computer in “Battery Safe mode” ( Battery Safe mode on page 34 ).
3. Disconnect all external devices connected to the computer.
4. 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.
5. Remove the main service door ( Service doors on page 35 ).
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 M2.0×4.0 screw (2) that secures the WLAN module to the computer. (The edge of
the module opposite the slot rises away from the computer.)
Component replacement procedures 39