Power on Definition 1 of 2Pro Tip 1/3First Action Often the initial step in instructions for using electronics. To install the software, power on your PC first. Pro Tip 2/3Technical Sequences Commonly used in technical guides and troubleshooting steps. If the screen is blank, power on the monitor to check connectivity. Pro Tip 3/3Pre-condition Used before other actions that depend on the device being active. Power on the printer before sending a print job.