3. 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.
4. Remove the following components:
a. Service door (see Service door on page 37).
b. Remove the battery (see Battery on page 38)
c. Hard drive (see Hard drive on page 39).
d. Solid-state drive (see Solid-state drive (select products only) on page 41).
e. WWAN module (see WWAN module (select products only) on page 42).
f. WLAN module (see WLAN module on page 43).
g. Optical drive (see Optical drive on page 45).
h. Keyboard (see Keyboard on page 47).
i. Hinge covers (see Hinge cover on page 53).
j. Base enclosure (see Base enclosure on page 55).
k. System board (see System board on page 57).
l. Fan/heat sink assembly (see Fan and heat sink assembly on page 59).
Remove the top cover:
1. If the computer is equipped with a pointing stick (select products only), remove 2 M2x1.5L P0 pointing
stick screws.
64 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts
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