Dell Vostro 3681 Service Manual page 40

Steps
1. Connect the antenna cables to the WLAN card.
The following table provides the antenna-cable color scheme for the wireless card supported by your computer.
Table 3. Antenna-cable color scheme
Connectors on the wireless card
Main (white triangle)
Auxiliary (black triangle)
2. Slide and place the wireless card bracket on the antennae connectors on the WLAN card.
3. Align the notch on the wireless card with the tab on the wireless-card slot.
4. Slide the wireless card at an angle into the wireless-card slot of the system board.
5. Replace the single (M2x3) screw that secures the wireless card to the system board.
Next steps
1. Install the ODD bracket
2. Install the side cover.
3. Follow the procedure in
40 Disassembly and reassembly
After working inside your
Antenna-cable color
White
Black
computer.