1150 System Board And Expresscard Slot Assemblies; Chapter 8 . Removing And Replacing A Fru - Lenovo ThinkPad X220 Maintenance Manual

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Israel label (67.8 mm x 27.9 mm)
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Israel label (72.2 mm x 29.7 mm)
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Israel label (76.2 mm x 31.8 mm)
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Ethernet label or Onboard LAN MAV address label
For some models, you need to apply two FCC labels,
two FCC labels, apply both to the new base cover.
For the location of each label, refer the following figure:
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1150 System board and ExpressCard slot assemblies

Important notices for handling the system board:
When handling the system board, bear the following in mind.
• The system board has an accelerometer, which can be broken if 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 6,000 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.
• If a system board is dropped, you must test it, using PC-Doctor for DOS, to make sure that the HDD
Active Protection System™ still functions.
Note: If the test shows that the HDD Active Protection System is not functioning, be sure to document the
drop in a reject report, and replace the system board.
• 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.
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17 and 21 . Check the old base cover; if it has
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Chapter 8 Removing and replacing a FRU
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