Lenovo IdeaCentre A300 - Manual (Page 50)

Hardware Maintenance Manual
48
Replacing the power adapter
To replace the power adapter:
1. Remove any media (diskettes, CDs, or memory cards) from the drives,
shut down your operating system, and turn off all attached devices
and the computer.
2. Disconnect the power adapter from the computer and connect the
new power adapter to the same connector.