HP ProBook 640 G1 Maintenance And Service Manual page 84

Description
Broadcom 802.11 a/b/g/n 2x2 + BT 4.0 LE PCIe+USB HMC WW
Intel 802.11 a/b/g/n 2x2 + BT 4.0 WLAN
CAUTION:
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. 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 battery (see
5. Remove the service cover (see
Remove the WLAN module:
1. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module.
NOTE:
"1". The WLAN antenna cable labeled "2" connects to the WLAN module "Aux" terminal labeled "2".
2. Remove the two Phillips screws (2) that secure the WLAN module to the system board.)
3. Remove the WLAN module (3) by gently pulling the module away from the slot at an angle. (The WLAN
module tilts up.)
76 Chapter 5 Removal and replacement procedures for Customer Self-Repair parts
To prevent an unresponsive system, replace the wireless module only with a wireless module
Battery on page
Service cover on page
The WLAN antenna cable labeled "1" connects to the WLAN module "Main" terminal labeled
64).
65).
Spare part number
730668-001
747832-001