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g.
WWAN module (see
WWAN module on page 61)
h. Modem module (see
Modem module on page 68)
i.
Keyboard (see
Keyboard on page 69)
j. Base enclosure (see
Base enclosure on page 74)
k. System board (see
System board on page 79)
Remove the heat sink:
1. Following the 1, 2, 3, 4 sequence stamped into the heat sink, loosen the four captive Philllips
screws (1) that secure the heat sink to the system board.
82 Chapter 4 Removal and replacement procedures