What should I do if my computer screen goes blank?

• Make sure your VAIO computer is on and not in a power saving mode. [Details]

• Make sure your VAIO computer is securely plugged into an AC outlet [Details] and the power indicator light is on.

• Make sure the DISPLAY OFF indicator light is off. [Details]
  While the DISPLAY OFF indicator light is on, the computer screen is blank. Press the DISPLAY OFF button to turn off the DISPLAY OFF indicator light.

• If you wait for a while and the computer screen remains blank, follow the procedures below:

• Press and hold down the power button for more than four seconds, check if the power indicator light is off, and then turn on your VAIO computer.

• If the problem persists, press and hold down the power button for more than four seconds and check if the power indicator light is off. Disconnect all cables and peripheral devices, such as the power cord and the USB device, and wait about five minutes. Then, put them back in place and turn on your VAIO computer again. For notebooks, remove the battery pack before restarting the computer.