1100 System Board - Lenovo ideapad 310S Maintenance Manual

Lenovo ideapad 310S-14AST/ideapad 510S-14ISK/ideapad 310S-14ISK

1100 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.
• In 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:
• "1010 Base cover" on page 32
• "1020 Battery pack" on page 34
• "1030 Hard disk drive" on page 35
• "1050 PCI Express Mini Card for wireless LAN" on page 38
• "1060 Upper case" on page 41
• "1070 DC-in cable" on page 43
• "1080 Fan and heat sink assembly" on page 44
• "1090 IO board" on page 46
Figure 10. Removal steps of system board
Detach the four connectors (the speaker connector, KB FPC connector, KB
backlight connector and touchpad connector) in the directions shown by arrows
1, 2 and 3. Remove the screws 4.
Step Screw (quantity)
M2 × 4 mm, Phillips head, nylok-coated (3)
4
MB TO UPPER
When installing: Make sure that the connectors are attached firmly.
Color Torque
Silver 1.85±0.15 kgf*cm
47