Lenovo IdeaCentre K220 User Manual download pdf (Page 46)

Chapter 7. Replacing hardware

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://www.lenovo.com/support.

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 power supply align with those in the chassis.

6. Install the four screws to secure the power supply. Note: Use only the

screws provided by Lenovo.

7. Reconnect the power supply connectors to the system board.

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Lenovo IdeaCentre K220 User Manual Page 46