55
Lenovo ideapad 330-17AST/ideapad 330-17AST D/ideapad 330-17AST U/
ideapad 330E-17AST D/ideapad 330E-17AST U/ideapad 330H-17AST/
ideapad 330L-17AST/ideapad 330E-17AST/ideapad 330R-17AST
1110 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:
• “1010 Optical drive” on page 33
• “1020 Base cover” on page 34
• “1030 Battery pack” on page 38
• “1040 PCI Express Mini Card for wireless LAN” on page 40
• “1050 DIMM” on page 42
• “1060 Hard disk drive” on page 43
• “1070 Speakers” on page 45
• “1080 Fan assembly and Heat Sink assembly” on page 46
• “1090 ODD transfer board, backup battery and fingerprint board” on page
• “1100 Upper case” on page 52
Figure 11. Removal steps of system board
Disconnect the connectors in the directions shown by arrows
1
and
2
.
Then remove the screws
3
.
b
c
c
c
a
Step Screw (quantity)
Color Torque
3
M2 × 3 mm, Phillips-head, nylok-coated (3)
M/B---log up
Black 1.85+/-0.15 kgf/cm