Lenovo ThinkPad X13 Yoga Gen 2, Руководство по техническому обслуживанию аппаратной части, Страница: 84 / 105

Step Screw (quantity) Color
Torque
6
M2 × L2 mm, flat-head, nylon-coated (7) Silver 0.181 Nm
(1.85 kgf-cm)
1160 System board
Note: If you replace the system board, remember to make the sensor calibration. For details, see “Sensor
calibration” on page 58.
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.
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X13 Yoga Gen 2 Hardware Maintenance Manual