Lenovo IdeaCentre K220 - Manual (Page 20)

17
Hardware Replacement Guide
Replacing the power supply
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://consumersupport.lenovo.com
To replace the power supply:
1. Remove the computer cover. Refer to “Removing the computer cover”.
Note: For this procedure, it helps to lay the computer on its side.
2. Disconnect the power supply cables from the system board and from all
drives. Refer to “Identifying parts on the system board”.
3. Remove the four screws that secure the power supply at the rear of the
chassis.
4. Lift the power supply out of the chassis.
5. Install the new power supply into the chassis so that the screw holes in the
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