Connect your VAIO computer to an AC power source.
Carefully read the precautions in Notes on Using the Power Source before connection.
Do not plug more than one device into the same AC outlet.
The shape of the AC adapter varies depending on the model you purchased.
Make sure that the power plug is firmly plugged into your VAIO computer.
You can purchase a power strip with a surge protector to help prevent damage to your VAIO computer caused by sudden power surges (in an electrical storm, for example).