1100 System Board - Lenovo ThinkPad Yoga 12 Hardware Maintenance Manual

Removal steps of the P sensor
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1100 System board

Important notices for handling the system board
When handling the system board, read the following:
• 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 0.15 m (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 material.
For access, remove these FRUs in order:
• "1020 Base cover assembly" on page 60
• "1030 Speaker assembly" on page 63
• "1040 Battery" on page 64
• "1050 Hard disk drive or solid-state drive" on page 65
• "1060 Wireless-LAN card" on page 68
• "1070 M.2 solid-state drive" on page 70
• "1080 Hard-disk-drive/buttons card and hard-disk-drive/buttons cable" on page 71
• "1090 P sensor" on page 72
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Chapter 9 Removing or replacing a FRU
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