Installing The System Board (Single-Color Keyboard) - Dell NOT21994 Owner's Manual

Table of Contents

NOTE:

This step is applicable only for computers that are shipped with a 165 Hz or 240 Hz display.

4. Remove the two (M2x5) screws that secure the Type-C bracket to the system board and lift the bracket off the system

board.

5. Disconnect the power-adapter port cable from the system board.

6. Peel the power-adapter port cable off the system board.

7. Disconnect the right-fan cable from the system board.

8. Disconnect the speaker cable from the system board.

9. Open the latch and disconnect the touchpad cable from the system board.

10. Open the latch and disconnect the keyboard cable from the system board.

11. Open the latch and disconnect the keyboard-backlight cable from the system board.

12. Disconnect the left-fan cable from the system board.

13. Remove the five screws (M2x5) that secure the system board to the palm-rest and keyboard assembly.

14. Remove the screw (M2x3) that secures the USB board to the palm-rest and keyboard assembly.

15. Remove the screw (M2x3) that secures the ethernet and audio board to the palm-rest and keyboard assembly.

16. Remove the screw (M2x4) that secures the left fan to the palm-rest and keyboard assembly.

17. Lift the system-board assembly off the palm-rest and keyboard assembly.

NOTE:

Ensure that you lift the system board from the top left and right sides of the heat sink.

18. Place the system-board assembly on a clean and flat surface.

19. Turn the system-board assembly over and remove the

assembly.