Lenovo IdeaCentre B310 - Manual (Page 48)

Hardware Maintenance Manual
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5. Remove the screw that secures the WLAN card to motherboard, and
pull out the WLAN card.
6. Align then insert the new WLAN card to the card port and screw it in
to the motherboard.
7. Connect the antenna cables back to the new WLAN card.
8. Install the motherboard cover back.
9. Install the computer cover and computer stand.
Replacing the speakers system
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 cables from the motherboard.
5. Remove the 4 screws that secure the speakers system to the chassis.