Top cover
NOTE: Top cover spare part kits include the touchpad assembly.
Description Spare part number
Top cover (includes touchpad) 905996-001
Before removing the top cover, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Place the computer in “Battery Safe mode” (Battery Safe mode on page 30).
3. Disconnect all external devices connected to the computer.
4. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet, and
then unplugging the AC adapter from the computer.
5. Remove the following components:
a. Service door (see Service door on page 31).
b. Hard drive (Hard drive on page 34)
c. Optical drive (Optical drive on page 32)
d. Keyboard (see Keyboard on page 41)
Remove the top cover:
1. Position the computer upside-down with the front toward you.
2. Remove the 13 Torx T8 2.5×6.0 screws (1) that secure the top cover to the computer.
3. Remove the 4 Phillips PM2.0×3.0 screws (2) that secure the top cover to the computer.
4. Position the computer upright and open it as far as possible.
48 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
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