Specifications

4. Remove the battery (see Battery on page 49).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 60)
b. Optical drive (see
Optical drive on page 56)
c. Keyboard (see
Keyboard on page 65)
d. Modem module (see
Modem module on page 70)
e. Fan (see
Fan on page 74)
f. Heat sink (see
Heat sink on page 75)
g. Base enclosure (see
Base enclosure on page 79)
h. Display assembly (see
Display assembly on page 84)
When replacing the system board, be sure that the following components are removed from the
defective system board and installed on the replacement system board:
●
SIM (see
SIM on page 50)
●
Primary memory module (see
Primary memory module on page 72
●
Expansion memory module (see
Expansion memory modules on page 63)
●
WLAN module (see
WLAN module on page 52)
●
WWAN module (see
WWAN module on page 68)
●
Processor (see
Processor on page 77)
Remove the system board:
1. Position the top cover right-side up, with the front toward you.
2. Disconnect the power button cable (1) swinging ZIF connector from the system board (2).
3. Disconnect the TouchPad cable (3) swinging ZIF connector from the system board (4).
4. Disconnect the wireless/web/mute function board cable (5) swinging ZIF connector from the
system board (6).
5. Disconnect the fingerprint reader cable (7) swinging ZIF connector from the system board (8).
92 Chapter 4 Removal and replacement procedures