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NOTE:
When replacing the system board, be sure to remove the solid-state drive
WLAN module
board and install them on the replacement system board.
Remove the system board:
1.
Disconnect the following cables from the system board:
(1) WLAN module
(2) Left and right fan cables
(3) TouchPad cable
(4) Keyboard backlight cable
(5) Keyboard cable
(6) Display panel cable
2.
Remove the three Phillips PM2.0×3.0 screws (1) that secure the system board to the computer.
3.
Swing the front edge of the system board up and back so you can access the RTC battery cable (2).
4.
Disconnect the RTC battery cable (3) from the system board.
38
Chapter 5 Removal and replacement procedures for Authorized Service Provider parts
(Heat sink on page
39), and heat sink
(Heat sink on page
39) from the defective system
(Heat sink on page
39),
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