Maintenance and Service Guide

6. Remove the battery (see Battery on page 35).
7. Remove the fan (see Fan on page 48).
NOTE: When replacing the system board, be sure that the following components are removed from the
defective system board and installed on the replacement system board:
●
WLAN module (see WLAN module on page 38)
●
Memory modules (see Memory module on page 40)
●
Solid-state drive (if installed) (see Solid-state drive on page 41)
●
Heat sink assembly (see Heat sink assembly on page 52)
To remove the system board:
1. Position the computer upright, and then disconnect the following cables from the system board:
(1): USB board cable
(2): WLAN antenna cables
(3): Fan cable
(4): TouchPad button board cable
(5): Keyboard cable
(6): Backlight cable
(7): Hard drive cable
(8): Speaker cable
(9): Power connector cable
(10): Display cable
2. Remove the three Phillips silver M2.0×2.0 screws (1) that secure the system board to the computer.
3. Remove the Phillips broad head black M2.0×3.0 screw (2) that secures the system board to the
computer.
50 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts