Lenovo G400s User Manual page 46

Appendix. CRU instructions
7 Take out the wireless LAN card
8 Install the new wireless LAN card.
9 Reinstall and tighten the screw.
0 Reconnect the two wireless LAN cables (one black, one white).
Note: When installing or reinstalling the wireless LAN card:
• In models with a wireless LAN card that has two cables:
• In models with a wireless LAN card that has only one cable, plug the black cable
A Reinstall the compartment cover and tighten the screws.
B Reinstall the battery pack.
C Turn the computer over again.
D Connect the AC power adapter and the cables to the computer again.
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Plug the black cable (MAIN) into the jack labeled M(MAIN).
Plug the white cable (AUX) into the jack labeled A(AUX).
(MAIN) into the jack labeled M(MAIN).
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