Optoma Optoma EP706 - Manual (Page 19)

English 
User Controls
Clear
 Clear your selection.
Color Setting
 A djust the Red, Green, Blue, Yellow, Cyan and Magenta colors
for advanced adjustment of the individual colors.
Source Lock
 Select auto detection all connector ports or lock current connector
port.
Sleep Timer
 S ets the countdown timer interval.
VGA
 Press “VGA” to choose VGA connector.
S-Video
 Press “S-Video” to choose S-Video source.
Video
 Choose composite video source.