3. Remove the TouchPad button board, carefully lifting the cable through the top cover (2) (the cable was
disconnected from the system board when removing the top cover).
4. Remove the TouchPad button board (3).
Reverse this procedure to install the TouchPad button board.
WLAN module
Description Spare part number
Realtek RTL8188EE 802.11 bgn 1x1 Wi-Fi adapter 709848-001
Realtek RT8723BE 802.11 bgn 1x1 Wi-Fi + BT4.0 combo adapter 753077-005
Before removing the WLAN module, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn
the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see
Battery on page 29), and then remove the following components:
a. Service door (see
Service door on page 30)
b. Optical drive (see
Optical drive on page 32)
c. Top cover (see
Top cover on page 39)
Component replacement procedures 47
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