Installing The System Board - Dell XPS 16 9640 Owner's Manual

Steps
1. Open the latch and disconnect the power-button and fingerprint reader cable from the connector (FP1) on the system
board.
2. Remove the screw (M2x3) that secures the wireless-module shield to the system board.
3. Open the latch and disconnect the capacitive touch-panel cable connector (TF1) on the system board.
4. Disconnect the speaker cable from the connector (SPKR1) on the system board.
5. Open the latch and disconnect the keyboard-controller cable from the connector (CN6501) on the system board.
6. Open the latch and disconnect the touchpad cable from the connector (TPAD1) on the system board.
7. Disconnect the speaker cable from the connector (SPKL1) on the system board.
8. Disconnect the antenna cables from the connectors (AUX1 and MAIN2) on the wireless module.
9. Remove the four screws (M2x4.5) that secure the system board to the palm rest and keyboard assembly.
10. Remove the system board from the palm rest and keyboard assembly.

Installing the system board

CAUTION: The information in this installation section is intended for authorized service technicians only.
Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
About this task
Figure 48. System-board connectors
1. Power-button and fingerprint reader cable connector (FP1)
2. Antenna-cable connectors (MAIN 2 and AUX 1) on wireless module
3. Camera-cable connector (CAM1)
68 Removing and installing Field Replaceable Units (FRUs)