Hardware Maintenance Manual - Lenovo Y40 50 Series

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
.



Step Screw (quantity) Color Torque
1
M2.0×3.0mm,at-head,nylok-coated(2)
RJ45COVERTOM/B(Y40-70/Y40-80)
Black 2.0kgf*cm