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Lenovo N22 Hardware Maintenance Manual
1050 System board
For access, remove these FRUs in order:
• "1010 Base cover" on page 33
• "1020 Battery pack" on page 35
• "1030 PCI Express Mini Card for wireless LAN" on page 36
• "1040 LCD unit" on page 38
Figure 5. Removal steps of system board
Remove screws
in the direction shown by arrow
connector and IO board connector in the directions shown by arrows
40
Important notices for handling the system board:
When handling the system board, bear the following in mind.
• Be careful not to drop the system board on a bench top that has a hard surface,
such as metal, wood, or composite.
• Avoid rough handling of any kind.
• During the whole process, make sure not to drop or stack the system board.
• If you put a system board down, make sure to put it only on a padded surface,
such as an ESD mat or conductive corrugated material.
. Unplug speaker connector and backup battery connector
1
Step
Screw (quantity)
M2.5 × 3 mm, flat-head,
1
nylok-coated (5) MB to Upper
. Detach keyboard connector, touch pad
2
a
a
a
Color
Torque
Black
2 kgf.cm
and
.
3
4
a
a
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