Dell Latitude 3440 Service Manual page 25

Steps
1. Connect the WLAN-antenna cables to the respective connectors on the wireless card.
NOTE: The WLAN-antenna cable connectors are fragile, and utmost care should be taken while replacing them.
Table 2. WLAN-antenna cable color scheme
Connectors on the wireless card
Main - White triangle (△) on the wireless module of the
system board
Auxiliary - Solid triangle (▲) on the wireless module of the
system board
2. Align the notch on the wireless card with the tab on the wireless card slot.
3. Slide the wireless card at an angle into the wireless card slot.
4. Place the wireless-card bracket on the wireless card.
5. Align the screw hole on the wireless-card bracket with the screw hole on the system board.
6. Replace the screw (M2x3) to secure the wireless-card bracket and the wireless card to the system board.
Antenna-cable color
White cable
Black cable
Removing and installing components 25