Lenovo ThinkCentre M83 User Manual page 80

3. Adjust the angle of the rear antenna to lower the risk of breaking the antenna by accident.
Figure 58. Installing the rear Wi-Fi antenna
To remove the rear Wi-Fi antenna, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Straighten the rear Wi-Fi antenna so that it can be more easily twisted.
3. Hold the thicker end of the rear Wi-Fi antenna and unscrew the Wi-Fi antenna from the rear of the
computer.
Figure 59. Removing the rear Wi-Fi antenna
Replacing the internal speaker
Attention:
Do not open your computer or attempt any repair before reading and understanding the "Important safety information"
on page v.
68
ThinkCentre M83 and M93/p User Guide