Fan
Description
Spare part number
Fan
646027-001
Before removing the fan, follow these steps:
1.
Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn
the computer on, and then shut it down through the operating system.
2.
Disconnect all external devices connected to the computer.
3.
Disconnect the power from the computer by first unplugging the power cord from the AC outlet,
and then unplugging the AC adapter from the computer.
4.
Remove the battery (see
Battery on page 41
).
5.
Remove the following components:
a.
Access door (see
Access door on page 43
).
b.
WLAN module (see
WLAN/Bluetooth combo card on page 49
)
c.
WWAN module (see
WWAN module on page 47
)
d.
Keyboard (see
Keyboard on page 54
)
e.
Top cover (see
Top cover on page 55
)
f.
Modem module (see
Modem module on page 61
)
g.
System board (see
System board on page 63
)
Remove the fan:
1.
Position the system board upside-down.
2.
Remove the Phillips PM2.5×4.0 screw
(1)
that secures the fan to the system board.
3.
Disconnect the fan cable
(2)
from the system board.
Component replacement procedures
67
