Viewsonic A90F+ 사용자 설명서

To display the Main Menu, press button [1].

To select a control you want to adjust, press the arrow buttons on the front 
control panel of your monitor and scroll through the choices. When the 
control you want is highlighted, press button [2].

NOTE: Some controls on the Main Menu are listed in pairs, such as 
Contrast/Brightness. Display control screen (sample shown in step 3 below). 
Press button [2] to toggle to the next control in the pair.

To adjust the selected control, such as 

 in the sample below, 

press the arrow buttons. 

To save the control setting and Exit the menu press button [1] twice.