Lenovo C205 All-In-One - Manual (Page 57)

Chapter 8. Replacing hardware
55
Replacing the power adapter
To replace the power adapter:
1. Remove any media (disks, CDs, or memory cards) from the drives,
shut down the operating system, and turn off the computer and all
attached devices.
2. Disconnect the power adapter from the computer and connect the
new power adapter to the same connector.