In this video, we will demonstrate how to replace the wireless card. Before removing the wireless card read through the safety guidelines to protect your computer from potential damage and ensure your personal safety.
For more information about safety guidelines see the Inspiron 7706 2-in-1 Service Manual at: Dell.com/support Before you begin ensure that you turn off your computer and disconnect all attached peripherals. To remove the base cover remove the eight screws that secure the base cover to the palm-rest and keyboard assembly.
Loosen the three captive screws that secure the base cover to the palm rest and keyboard assembly. Do not pull or pry on the base cover at the side where the hinges are located. Doing so may damage the base cover. Upon loosening the three captive screws, the base cover will pop up creating a gap between the base cover and the palm rest assembly.
If the cover is still attached use the plastic scribe to gently pry it off. Lift the base cover off of the palm rest assembly. Disconnect the battery cable from the system board. Turn the computer over and open the display. Press the Power button for 15 seconds to drain the flea power.
Now, let’s remove the wireless card. Remove the screw that secures the wireless card bracket to the wireless card and system board. Remove the wireless card bracket from the wireless card. Disconnect the antenna cables from the wireless card. Slide and remove the wireless card from the wireless card slot.
You have successfully removed the wireless card. Now, let’s install the wireless card. Connect the white antenna cable to the wireless card main connector.
The white antenna cable must be connected with the connector that is marked with a white triangle. Connect the black antenna to the wireless card main connector.
The black antenna cable must be connected with the connector that is marked with a black triangle. Align the notch on the wireless card with the tab on the wireless card slot and insert the wireless card at an angle into the wireless card slot.
Align the screw hole on the wireless card bracket with the screw hole on the wireless card and palm rest and keyboard assembly. Replace the screw that secures the wireless card bracket to the wireless card and system board.
Once the wireless card is installed, we have to reconnect the battery cable. To reinstall the base cover, align the screw holes on the base cover with the screw holes on the palm rest and keyboard assembly.
Then, snap the base cover into place. Replace the eight screws that secure the base cover to the palm rest and keyboard assembly. Tighten the three captive screws that secure the base cover to the palm rest and keyboard assembly. The wireless card installation process is now complete.
For additional information about this procedure and more see the Service Manual document at: Dell.com/support.
