47
Lenovo Y70-70 Touch/Y70-80 Touch
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.
• 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 Base cover” on page 33
• “1020 Battery pack” on page 35
• “1030 Hard disk drive” on page 37
• “1040 PCI Express Mini Card for wireless LAN” on page 39
• “1060 LED board” on page 42
• “1070 Subwoofer” on page 43
• “1080 USB board” on page 44
• “1090 Fan assembly and Heat Sink assembly” on page 45
Figure 10. Removal steps of system board
Disconnect the connectors in the direction shown by arrows
1
,
2
and
3
.
Remove the screws
4
.
4
4
4
4
4
4
4
3
2
2
1
1
2
1
2
2
Step Screw (quantity)
Color Torque
4
M2.0 × 3.0 mm, flat-head, nylok-coated (9)
RJ45 FRAME to MB & M/B SUB to LOGIC UP
SUB and KB SUP BKT
Black 2.0 kgf*cm
When installing:
Make sure that the connectors are attached firmly.
