1050 System Board Assembly - Lenovo ThinkPad 11e Chromebook Hardware Maintenance Manual

Removal steps of the USB bracket
Step Screw (quantity)
1
M2 × L4 mm, flat-head, nylon-coated (2)
When installing: Ensure that the connectors are attached firmly.

1050 System board assembly

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.
For access, remove these FRUs in order:
• "1010 Base cover assembly" on page 54
• "1020 Battery" on page 55
• "1030 Wireless LAN card" on page 57
• "1040 Audio card, speaker, hall sensor card and USB bracket" on page 57
Attention: The microprocessor
you service the system board, avoid any kind of rough handling.
60
ThinkPad 11e Chromebook 4th Gen and ThinkPad Yoga 11e Chromebook 4th Gen Hardware Maintenance Manual
a soldered on the top side of the system board is extremely sensitive. When
Color Torque
0.181 Nm
Silver
(1.85 kgf-cm)