Lenovo IdeaCentre K220 - Manual (Page 56)

Chapter 7. Replacing hardware
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6. Pull on the tips of the rubber mounts until the fan assembly is in place.
7. Connect the system fan assembly cable to the system fan connector on
the system board.
8. Refer to the “Completing the installation”.
Replacing the keyboard
Attention
Do not remove the computer cover or attempt any repair before
reading the “Important safety information” in the Safety and Warranty
Guide that was included with your computer or in the Hardware
Maintenance Manual (HMM) for the computer. To obtain copies of
the Safety and Warranty Guide or HMM, go to the Support Web site at
http://www.lenovo.com/support.
To replace the keyboard:
1. Remove any media (diskettes, CDs, or tapes) from the drives, shut
down your operating system, and turn off all attached devices and the
computer.