5. Disconnect the battery.
NOTE: When replacing the system board, be sure that the following components (as necessary) are
removed from the defective system board and installed on the replacement system board:
●
WLAN module (see WLAN module on page 49)
●
Solid-state drive (see Solid-state drive (M.2) on page 35)
●
Heat sink (see Heat sink on page 50)
Remove the system board:
1. Disconnect the following cables from the system board:
(1): Display cable
(2): Touch board cable
(3): Power connector cable
(4): Speaker cable
(5): USB/card reader board cable
(6): Wireless antennas (may include one or two antennas)
(7): Power button board cable
44 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts