Lenovo ThinkCentre M79, Hardware Maintenance Manual

Page: 154 / 186

What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to “Completing the parts replacement” on page 151.
Replacing the Wi-Fi units
Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 “Read this first: Important safety information” on page 1.
The Wi-Fi units include a Wi-Fi adapter card, a Wi-Fi card module, and a rear Wi-Fi antenna cable.
Replacing the Wi-Fi units involves the following operations:
• “Removing the Wi-Fi adapter card” on page 146
• “Removing the Wi-Fi card module” on page 147
• “Installing the Wi-Fi units” on page 148
Removing the Wi-Fi adapter card
To remove the Wi-Fi adapter card, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See “Removing the computer cover” on page 105.
3. If your computer comes with a Wi-Fi card module that supports the Bluetooth function, disconnect
the Bluetooth cable from the Wi-Fi adapter card.
Figure 64. Disconnecting the Bluetooth cable
Note: The Bluetooth cable connects the Bluetooth connector on the Wi-Fi adapter card to the front USB
connector on the system board to support the Bluetooth function.
4. Remove the screw that secures the Wi-Fi adapter card.
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ThinkCentre M79 Hardware Maintenance Manual