4. Remove the battery (see Battery on page 41).
5. Remove the following components:
a. Bottom door (see
Bottom door on page 47).
b. Hard drive (see
Hard drive on page 52)
c. Optical drive (see
Optical drive on page 48)
d. Modem module (see
Modem module on page 63)
e. Fan (see
Fan on page 65)
f. Heat sink (see
Heat sink on page 66)
g. Keyboard (see
Keyboard on page 71)
h. Top cover (see
Bottom cover on page 73)
i. Function board (see
Function board on page 82)
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 46)
●
Memory module (see
Memory modules on page 55)
●
WLAN module (see
WLAN module on page 59)
●
WWAN module (see
WWAN module on page 57)
●
Modem module (see
Modem module on page 63)
●
Processor (see
Processor on page 69)
Remove the system board:
1. Position the computer right-side up, with the front toward you.
2. Lift the Touchpad connector latch (1) and disconnect the Touchpad cable (2).
3. Lift the fingerprint reader connector latch (3) and disconnect the fingerprint reader cable (4).
84 Chapter 4 Removal and replacement procedures
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