beautypg.com

Lenovo ThinkPad 11e User Manual

Page 72

background image

Removal steps of the media-card-reader board

1

1

2

Step

Screw (quantity)

Color

Torque

1

M2 × L3 mm, flat-head, nylon-coated (2)

Black

0.181 Nm
(1.85 kgf-cm)

5

4

3

When installing: Ensure that the connector is attached firmly.

1090 System board assembly, dc-in connector, and thermal fan

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 15 cm (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.

66

ThinkPad 11e and ThinkPad Yoga 11e Hardware Maintenance Manual