49
Lenovo Y520-15IKBM
1120 System board
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.
For access, remove these FRUs in order:
•
•
“1020 Battery pack” on page 35
•
“1030 Solid state disk and hard disk drive” on page 36
•
“1040 PCI Express Mini Card for wireless LAN” on page 38
•
“1060 Fan assembly” on page 41
•
•
•
•
“1100 Kensington lock board and DC-in cable” on page 46
•
“1110 Touchpad button board” on page 48
Disconnect the connectors (the EDP cable connector, KB FPC connector and
keyboard backlight connector ) in the directions shown by arrows
1
,
2
,
3
and
4
. Remove the screws
5
.
2
1
2
1
3
3
4
5
5
5
5
Step
Screw (quantity)
Color
Torque
5
M2 × 3.5 mm, Phillips head, nylok-coated (4)
MB to C cover
Black
1.5 - 2.5 kg_cm
When installing:
Make sure that the connectors are attached firmly.