Optoma PK120 User Guide - Page 17

How to Use External Input Source: VGA / Composite AV Switching Input Source Once a video source device is connected and turned on, the projector detects the video source. To manually switch the input source, do the following: or Switch again or Exit the input source and return to Home menu from any point Adjusting Input Source Settings Adjust volume or E nter S etting mode Contrast setting Brightness setting Sharpness setting Similar screen appears in Brightness setting and Sharpness setting. However, the button functions may differ, follow the button guide. Exit Setting mode Sharpness setting Brightness setting Return to previous screen Return to Home menu 17