XPS 17 9720 Service Manual

Installing the system board

1. Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly.
2. Replace the three (M2x4) screws to secure the system board to the palm-rest and keyboard assembly.
3. Connect the antenna cables to the wireless module.
   The following table provides the antenna-cable color scheme for the wireless card that is supported by your computer.

   Table 1. Antenna-cable color schemeThe following table provides the antenna-cable color scheme for the wireless card of your computer.

   Connector on the wireless card	Antenna-cable color	Silkscreen marking
   Main	White	MAIN	△ (white triangle)
   Auxiliary	Black	AUX	▲ (black triangle)

4. Connect the right speaker cable to the connector on the system board.
5. Place the wireless antenna bracket on the wireless module and install the single (M2x4) screw to secure it to the system board.
6. Place the right USB Type-C port bracket on the USB ports and install the single (M2x4) screw to secure it to the system board.
7. Connect the left speaker cable to the connector on the system board.
8. Connect the power-button cable to the connector on the system board and close the latch to secure the cable.
9. Connect the keyboard cable to the system board and close the latch to secure the cable.
10. Place the left USB Type-C port bracket on the USB ports and install the single (M2x4) screw to secure it to the system board.
11. Connect the display cable and the camera cable to the system board.
12. Place the display-cable bracket over the display and camera cable and replace the two screws (M2x4) to secure it to the system board.