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e. Keyboard (see Keyboard on page 58)
f. Base enclosure (see
Base enclosure on page 61)
NOTE: 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 41, if applicable)
● Memory module (see
Memory module on page 52)
●
WWAN module (see
WWAN module on page 54)
●
WLAN module (see
WLAN module on page 56)
●
Heat sink (see
Heat sink on page 70)
Remove the system board:
1. Disconnect the following cables:
● (1): Right speaker cable
●
(2): Display panel
●
(3): Left speaker cable
●
(4): Touchpad
●
(5): Smart card reader
68 Chapter 4 Removal and replacement procedures