Acer AT4220A AT4220A Service Guide - Page 27

Connecting a Camera, Camcorder or Video Game Connect your camera or camcorder to the video/audio ports on the rear of the TV set as shown below.
  
Connecting a PC or Notebook Computer To display PC output on your TV, please connect your PC or notebook computer to the TV as shown below. For AT4220A 
   
 Note: For VGA and DVI input, Acer recommends setting your PC's external monitor resolution to 1360 x 768 at 60Hz. Chapter 1 21