Top cover
Description Spare part number
Top cover (includes TouchPad board and cable, and TouchPad button board and cable) 491632-001
Before removing the top cover, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4. Remove the battery (see
Battery on page 46).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 47)
b. Optical drive (see
Optical drive on page 55)
c. Switch cover (see
Switch cover and keyboard on page 57)
d. Keyboard (see
Switch cover and keyboard on page 57)
e. Speakers (see
Speakers on page 61)
f. Display assembly (see
Display assembly on page 62)
Remove the top cover:
1. Turn the computer upside down, with the front toward you.
68 Chapter 4 Removal and replacement procedures