4.
Remove the battery (see
Battery on page 41
).
5.
Remove the following components:
a.
Access door (see
Access door on page 43
).
b.
Hard drive (see
Hard drive on page 44
)
c.
Keyboard (see
Keyboard on page 54
)
d.
Top cover (see
Top cover on page 55
)
e.
Speaker assembly (see
Speaker assembly on page 62
)
When replacing the system board, be sure to remove the following components from the defective
system board and install on the replacement system board:
●
SIM (see
SIM on page 42
)
●
Memory module (see
Memory modules on page 46
)
●
WLAN module (see
WLAN/Bluetooth combo card on page 49
)
●
WWAN module (see
WWAN module on page 47
)
●
Modem module (see
Modem module on page 61
)
●
Processor (see
Processor on page 71
)
Remove the system board:
1.
Position the computer upright and open it.
2.
Disconnect the display cable from the system board
(1)
and lift it aside.
3.
Remove the Phillips PM2.5×5.0 screw
(2)
that secures the system board to the base enclosure.
4.
Remove the Phillips PM2.5×7.0 screw
(3)
that secures the system board to the base enclosure.
5.
Lift to remove the power connector bracket on the right side of the system board
(4)
.
The power connector bracket is available in the Bracket Kit, spare part number 646045-001.
64
Chapter 4 Removal and replacement procedures
