Dell G15 5520-4132 Service Manual page 39

About this task
The following image indicates the location of the system board and provides a visual representation of the removal procedure.
Steps
1.
NOTE: Move in clock-wise direction to disconnect the cables from the system board.
Remove the two (M2x4) screws that secures the Type-C bracket to the system board and lift the bracket off the system
board.
2. Peel the tape that secures the display cable to the system board.
3. Open the latch and disconnect the display cable from the system board and place it on a flat and clean surface.
4. Open the latch and disconnect the power-adapter port cable from the system board.
5. Disconnect the left fan cable from the system board.
6. Remove the two (M2x2) screws that secures the left fan to the to the palm-rest and keyboard assembly.
7. Disconnect the speaker cable from the system board.
8. Open the latch and disconnect the keyboard cable from the system board.
9. Open the latch and disconnect the keyboard-backlight cable from the system board.
10. Open the latch and disconnect the touchpad cable from the system board.
11. Disconnect the right fan cable from the system board.
12. Open the latch and disconnect the power-button cable from the USB board.
13. Remove the display cable from the routing guides on the palm-rest and keyboard assembly.
14. Remove the five (M2x4) screws that secure the system board to the palm-rest and keyboard assembly.
NOTE: I/O board, USB board, and fan and heat-sink assembly are attached to the system board.
Removing and installing components 39