Dell Inspiron 16 7620 Service Manual page 54

14. Disconnect the battery cable from the system board.
15. Disconnect the front-speaker cable from the system board.
16. Remove the front-speaker cable from the routing guides on the system board.
17. Using the pull tab, disconnect the side-speaker board cable from the system board.
18. Peel the tape that secures the I/O-board cable connector latch to the system board.
19. Lift the latch and disconnect the I/O-board cable from the system board.
20. Peel the tape that secures the fan cable to the system board.
21. Disconnect the fan cable from the system board.
22. Remove the screw (M2x3) that secures the system board to the palm-rest and keyboard assembly.
23. Remove the screw (M2x2) that secures the system board to the palm-rest and keyboard assembly.
24. Lift the system board off the palm-rest and keyboard assembly.
Installing the system board
Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
About this task
The following image indicates the connectors on your system board.
1. Display-backlight cable connnector
2. Display-cable connector
3. Keyboard backlight-cable connector
4. Keyboard-cable connector
5. Touchpad-cable connector
6. Battery-cable connector
7. Front-speaker cable connector
8. Side-speaker board cable connector
54 Removing and installing components