Viewsonic VG800b 사용자 설명서

Adjust the menu items shown below by using the up 

▲ 

and down 

▼ 

buttons.    

automatically sizes, centers, and fine tunes 

the video signal to eliminate waviness and distortion.
Press the [2] button to obtain a sharper image.
NOTE: Auto Image Adjust works with most common video 
cards. If this function does not work on your LCD display, then 
lower the video refresh rate to 60 Hz and set the resolution to its 
pre-set value.

 adjusts the difference between the image background 

(black level) and the foreground (white level).

adjusts background black level of the screen image.

increases the volume, decreases the volume, and mutes 

the audio.

adjusts the proportion of sound coming from each 

speaker.

adjusts the low (bass) frequency audio output.

adjusts the high (treble) frequency audio output.

 temporarily silences audio output.