Lenovo Y50-70 - Manual (Page 62)

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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) 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