Lenovo IdeaCentre B300 - Manual (Page 47)

Chapter 8. Replacing hardware
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5. Lift up the function panel.
6. Align then screw in the new function panel.
7. Connect the cable to the new function panel.
8. Install the computer cover and computer stand.
Replacing the WLAN card card
1. Remove the computer stand. Refer to “Removing the computer stand”.
2. Remove the computer cover. Refer to “Removing the computer cover”.
3. Remove the motherboard cover. Refer to “Removing the motherboard
cover”.
4. Disconnect the antenna cables from the WLAN card.