Dell XPS 13 9340 Owner's Manual page 62

Figure 43. Opening the display assembly to a 90-degree angle
1. Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly.
2. Hold the system board by the short edges, as shown in the image, and place the system board on the palm-rest and
keyboard assembly. Ensure that the Thunderbolt 4 ports are aligned with their corresponding port holes on the palm-rest and
keyboard assembly.
3. Replace the seven screws (M1.6x2.3) that secure the system board to the palm-rest and keyboard assembly.
4. Replace the four screws (M1.6x3) that secure the system board to the palm-rest and keyboard assembly.
5. Connect the power-button cable and close the latch of the power-button connector.
6. Connect the right-speaker cable.
7. Connect the keyboard control-board cable and close the latch of the keyboard control-board connector.
8. Connect the touchpad cable and close the latch of the touchpad connector.
9. Connect the left-speaker cable.
10. Connect the capacitive touch-panel cable and close the latch of the capacitive touch-panel connector.
11. Connect the camera cable and the display cable to the system board.
12. Connect the wireless-module cables from the wireless module.
13. Replace the display-assembly cable bracket on the system board.
14. Tighten the three captive screws (M1.6x2) that secure the display-assembly cable bracket to the system board.
15. Replace the wireless-module bracket on the system board.
16. Tighten the captive screw (M1.6x2.3) that secures the wireless-module bracket to the system board.
NOTE: Be sure that the small, clear washer that holds the captive screw is in place before tightening the screw.
Next steps
1. Install the heat sink.
2. Install the fans.
62 Removing and installing Field Replaceable Units (FRUs)