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1180 Wireless WAN antenna assembly (for selected models)
For access, remove these FRUs:
• "1020 Base cover assembly" on page 62
• "1030 Built-in battery" on page 64
Removal procedure
When installing:
• Ensure that the connector is attached firmly.
• For models without Wireless WAN card, use an adhesive tape to fix the cable on the system board.
1190 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:
• "Removing the nano-SIM-card and nano-SIM-card tray" on page 60
• "1010 Keyboard" on page 60
• "1020 Base cover assembly" on page 62
• "1030 Built-in battery" on page 64
.
Chapter 8
Removing or replacing a FRU
81
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