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f.
Remove the WLAN module (see
WLAN module on page 50)
g.
Remove the WWAN module (see
WWAN module on page 53)
h.
Remove the keyboard (see
Keyboard on page 55)
i.
Remove the top cover (see
Top cover on page 60)
j.
Remove the RTC battery (see
RTC battery on page 65)
k.
Remove the display assembly (see
Display assembly on page 66)
l.
Remove the system board shield (see
System board shield on page 69)
m.
Remove the smart card reader (see
Smart card reader on page 78)
n.
Remove the system board (see
System board on page 80)
Remove the fan/heat sink assembly:
1.
Position the system board right side up.
2.
Disconnect the fan cable from the system board.
3.
Position the system board upside down.
4.
In the order indicated on the heat sink, loosen the four Phillips captive screws (1) that secure the
heat sink to the base enclosure.
Component replacement procedures
83