5. Remove the battery (see Battery on page 30).
6. Remove the speakers (see Speakers on page 37).
When replacing the system board, be sure to remove the following components from the defective system
board and install them on the replacement system board:
●
WLAN module (see WLAN module on page 42)
●
Fan/heat sink assembly (see Fan/heat sink assembly on page 43)
●
Memory modules (see Memory module on page 45)
Remove the system board:
1. Release the adhesive strip (1) that secures the display panel cable connector to the system board.
2. Release the ZIF connector (2) to which display panel cable is connected, and then disconnect the display
panel cable from the system board.
3. Release the display panel cable from the retention clips (3) and routing channel built into the fan/heat
sink assembly.
4. Release the ZIF connector (4) to which power button board cable is connected, and then disconnect
the power button board cable from the system board.
5. Disconnect the wireless antenna cables (5) from the WLAN module.
NOTE: The #1/white WLAN antenna cable connects to the WLAN module "#1/Main" terminal. The #2/
black WLAN antenna cable connects to the WLAN module "#2/Aux" terminal.
6. Release the adhesive strip (6) that secures the TouchScreen cable connector to the system board.
7. Release the ZIF connector (7) to which TouchScreen cable is connected, and then disconnect
the TouchScreen cable from the system board.
8. Disconnect the power connector cable (8) from the system board.
Component replacement procedures 39
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