Lenovo Y50-70 Touch Hardware Maintenance Manual - Lenovo Y40 50 Series - Page 62

System board, Important notices for handling the system board

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Y40-70/Y40-80/Y50-70/Y50-80/Y50-70 Touch/Y50-80 Touch Hardware Maintenance Manual 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 36 • "1030 Hard disk drive" on page 39 • "1040 PCI Express Mini Card for wireless LAN" on page 43 • "1060 LED board" on page 48 • "1070 Subwoofer (Y50-70/Y50-80/Y50-70 Touch/Y50-80 Touch)" on page 49 • "1080 IO board" on page 50 • "1090 Fan assembly and Heat Sink assembly" on page 53 Figure 10. Removal steps of system board Y40-70/Y40-80 Remove the screws 1, unplug the connector 2.    Step Screw (quantity) 1 M2.0 × 3.0 mm, flat-head, nylok-coated (2) RJ45 COVER TO M/B (Y40-70/Y40-80) Color Torque Black 2.0 kgf*cm 58

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58
Y40-70/Y40-80/Y50-70/Y50-80/Y50-70 Touch/Y50-80 Touch
Hardware Maintenance Manual
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 36
•
“1030 Hard disk drive” on page 39
•
“1040 PCI Express Mini Card for wireless LAN” on page 43
•
“1060 LED board” on page 48
•
“1070 Subwoofer (Y50-70/Y50-80/Y50-70 Touch/Y50-80 Touch)” on page 49
•
“1080 IO board” on page 50
•
“1090 Fan assembly and Heat Sink assembly” on page 53
Figure 10. Removal steps of system board
Y40-70/Y40-80
Remove the screws
1
, unplug the connector
2
.
±
²
²
Step
Screw (quantity)
Color
Torque
1
M2.0 × 3.0 mm, flat-head, nylok-coated (2)
RJ45 COVER TO M/B (Y40-70/Y40-80)
Black
2.0 kgf*cm