7. Remove the top cover (3).
Reverse this procedure to install the top cover.
Fingerprint reader board
Description Spare part number
Fingerprint reader board 486828-001
Before removing the fingerprint reader board, 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 43).
5. Remove the following components:
a. Hard drive (see Hard drive on page 46)
b. Optical drive (see Optical drive on page 44)
c. Keyboard (see Keyboard on page 56)
d. Switch cover (see Switch cover on page 58)
e. Speaker assembly (see Speaker assembly on page 60)
f. Display assembly (see Display assembly on page 62)
g. Top cover (see Top cover on page 69)
Component replacement procedures 71