Top cover
Description Spare part number
Top cover (includes TouchPad board and cable, TouchPad button board and cable, and TouchPad
bracket)
With fingerprint reader 492557-001
Without fingerprint reader 514059-001
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. Primary hard drive (see
Primary hard drive on page 55)
b. Optical drive (see
Optical drive on page 60) or Secondary hard drive (see Secondary hard
drive on page 68)
c. Switch cover and keyboard (see
Switch cover and keyboard on page 62)
d. Display assembly (see
Display assembly on page 74)
Remove the top cover:
1. Turn the computer upside down, with the front toward you.
80 Chapter 4 Removal and replacement procedures
