Dell XPS 14 (L421X, Mid 2012) - Manual (Page 33)

Replacing the Wireless Mini-Card
WARNING: Before working inside your computer, read the safety information
that shipped with your computer and follow the steps in "Before You Begin" on
page 9. After working inside your computer, follow the instructions in
"After Working Inside Your Computer" on page 11. For additional safety best
practices information, see the Regulatory Compliance Homepage at
dell.com/regulatory_compliance.
Procedure
1 Align the notch on the Mini-Card with the tab on the mini-card connector.
CAUTION: Use firm and even pressure to slide the mini-card into place. If you use
excessive force, you may damage the connector.
CAUTION: The connectors are keyed to ensure correct insertion. If you feel
resistance, check the connectors on the mini-card and on the mini-card
connector, and realign the mini-card.
CAUTION: To avoid damage to the mini-card, never place cables under
the mini-card.
2 Insert the mini-card at a 45-degree angle into the mini-card connector.
3 Press the other end of the mini-card down into the slot on the system board and
replace the screw that secures the mini-card to the system board.
4 Connect the antenna cables to the connectors on the mini-card.
The following table provides the antenna-cable color scheme for the mini-card
supported by your computer.
Connectors on the mini-card Antenna-Cable Color Scheme
WLAN + Bluetooth (2 cables)
Main WLAN + Bluetooth (white triangle) white
Auxiliary WLAN + Bluetooth (black triangle) black
Postrequisites
1 Replace the battery. See "Replacing the Battery" on page 26.
2 Replace the speakers. See "Replacing the Speakers" on page 24.
3 Follow the instructions from step 2 to step 6 in "Replacing the Base Cover" on
page 15.
Replacing the Wireless Mini-Card | 33