HP ProDesk 400 G5 Micro Maintenance and Service Guide 1 - Page 46

WLAN module, Remove the Phillips M2.0×3.5 screw

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WLAN module 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 device functionality, and then contact technical support. Before removing the WLAN module, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 28). 2. Remove the access panel (see Access panel on page 29). 3. Remove the front bezel (see Front bezel on page 32). 4. Remove the drive cage (see Drive cage on page 33). 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/MAIN" connects to the WLAN module "Main" terminal. The WLAN antenna cable labeled "2/AUX" connects to the WLAN module "Aux" terminal. 2. Remove the Phillips M2.0×3.5 screw (2) that secures the WLAN module to the system board. (The module tilts up.) 3. Remove the WLAN module (3) by pulling the module away from the slot at an angle. NOTE: WLAN modules are designed with notches to prevent incorrect insertion. Reverse this procedure to install the WLAN module. 38 Chapter 4 Removal and replacement procedures

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WLAN module
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 device
functionality, and then contact technical support.
Before removing the WLAN module, follow these steps:
1.
Prepare the computer for disassembly (see
Preparation for disassembly
on page
28
).
2.
Remove the access panel (see
Access panel
on page
29
).
3.
Remove the front bezel (see
Front bezel
on page
32
).
4.
Remove the drive cage (see
Drive cage
on page
33
).
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/MAIN" connects to the WLAN module "Main" terminal. The
WLAN antenna cable labeled "2/AUX" connects to the WLAN module "Aux" terminal.
2.
Remove the Phillips M2.0×3.5 screw
(2)
that secures the WLAN module to the system board. (The module
tilts up.)
3.
Remove the WLAN module
(3)
by pulling the module away from the slot at an angle.
NOTE:
WLAN modules are designed with notches to prevent incorrect insertion.
Reverse this procedure to install the WLAN module.
38
Chapter 4
Removal and replacement procedures