Lenovo 10w, Hardware Maintenance Manual

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1180 System board
Important notices for handling the system board:
When handling the system board, read the following:
• Some components mounted on a system board are very sensitive. Improper handling of a system board can cause
damage to those components, and may cause a system malfunction.
• The system board has an accelerometer, which can be broken when several thousands of G-forces are applied.
Note: Dropping a system board from a height of as little as 6 inches so that it falls flat on a hard bench can subject
the accelerometer to as much as 6000 G's of shock.
• 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.
• At every point in the process, be sure not to drop or stack the system board.
• If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or a corrugated
conductive surface.
• Avoid bending a system board and hard pushing to prevent cracking at each BGA (Ball Grid Array) chipset.
For access, remove these FRUs in order:
• “1010 Lenovo Integrated Pen (for selected models)” on page 36
• “1020 Pen dummy (for selected models)” on page 36
• “1030 LCD unit and LCD cable” on page 36
• “1100 Microphone board cable” on page 42
• “1140 Front camera with cable” on page 45
• “1150 Microphone board, microphone rubber and rear LED rubber” on page 45
• “1160 Wireless LAN antennas” on page 46
• “1170 Heatsink” on page 47
Removal steps of the system board
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Lenovo 10w Hardware Maintenance Manual