Compaq 300 320 321 420 421 620 and 621 Notebook PC and 420 and 620 Notebook PC - Page 75

CAUTION, Description, Spare part number, Atheros 9285G 802.11 b/g/n WiFi Adapter

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Description Atheros 9285G 802.11 b/g/n WiFi Adapter for use in all countries and regions Realtek RTL8191SE802.11 b/g/n WiFi Adapterf or use in all countries and regions Spare part number 605560-005 593533-001 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 computer functionality, and then contact technical support through Help and 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 battery (see Battery on page 56). 5. Remove the service door (see Service door on page 56). Remove the WLAN module: 1. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module. NOTE: The black WLAN antenna cable is connected to the WLAN module "Main" terminal. The white WLAN antenna cable is connected to the WLAN module "Aux" terminal. 2. Remove the two Phillips PM2.0×2.5 screws (2) that secure the WLAN module to the computer. (The edge of the module opposite the slot rises away from the computer.) 3. Remove the WLAN module (3) by pulling the module away from the slot at an angle. Reverse this procedure to install the WLAN module. Component replacement procedures 67

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Description
Spare part number
Atheros 9285G 802.11 b/g/n WiFi Adapter
for use in all countries and regions
605560-005
Realtek RTL8191SE802.11 b/g/n WiFi Adapter
f or use in all countries and regions
593533-001
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 computer functionality, and then contact technical support through Help and 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 battery (see
Battery
on page
56
).
5.
Remove the service door (see
Service door
on page
56
).
Remove the WLAN module:
1.
Disconnect the WLAN antenna cables
(1)
from the terminals on the WLAN module.
NOTE:
The black WLAN antenna cable is connected to the WLAN module “Main” terminal. The
white WLAN antenna cable is connected to the WLAN module “Aux” terminal.
2.
Remove the two Phillips PM2.0×2.5 screws
(2)
that secure the WLAN module to the computer.
(The edge of the module opposite the slot rises away from the computer.)
3.
Remove the WLAN module
(3)
by pulling the module away from the slot at an angle.
Reverse this procedure to install the WLAN module.
Component replacement procedures
67