Dell Latitude D531 (Mid 2007) - Manual (Page 123)

Before You Begin 123
c Slide the card at a 45-degree angle out of its connector.
NOTICE: The card connector is keyed to ensure correct insertion. If you feel resistance, realign the card.
NOTE: Do not insert a Mobile Broadband (WWAN) network card into the WLAN card connector.
NOTE: The Mini-Card may have two or three antenna connectors, depending on the type of card you ordered.
5 Install the card:
NOTICE: To avoid damaging the Mini-Card, never place cables on top of or under the card.
a Move any cables out of the way to make space for the Mini-Card.
b Align the card with the connector at a 45-degree angle, and press the card into the connector until
it clicks.
NOTE: For more specific information about which cable to connect to which connector, see the documentation
that came with your Mini-Card.
6 Connect the cables to the Mini-Card, ensuring that you route the cables correctly.
7 Replace the keyboard or cover.
1 WLAN card 2 metal securing bracket
1 2