Lenovo Y70-70 Touch Hardware Maintenance Manual - Lenovo Y70-70 Touch - Page 51

System board, Important notices for handling the system board

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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 3 4 1 4 2 4 4 2 4 4 1 2 1 2 2 Step Screw (quantity) Color Torque 4 M2.0 × 3.0 mm, flat-head, nylok-coated (9) Black 2.0 kgf*cm RJ45 FRAME to MB & M/B SUB to LOGIC UP SUB and KB SUP BKT When installing: Make sure that the connectors are attached firmly. 47

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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.