“OSD” button: To enter OSD setup menu, or to perform the function selected in OSD operation.
“NEXT” button: To select next item of option functions.
“”
“” button: To increase setting.
“” “” button: To decrease setting.
“” “” button: To turn the monitor power ON/OFF. The monitor can be turned OFF only when there is video signal and can be turned ON only when there is video signal and after the “Turn Off Panel” message vanishes. The default status is set to ON when power is supplied unless manually turned OFF. Since this button controls only the display power but not the display controller neither the touch controller, please try disconnect the power cable or the VGA cable once unfortunately the screen display goes into a mess. Please also avoid touching the screen with the system still running though this power switch is turned off.
F.OSD functions
Press “OSD” button with a normal display on the screen to activate the OSD functions (On Screen Display adjustment). The OSD window will pop up on the screen. On top part of this window is a Posiflex logo with the OSD firmware version indicated to its lower right. Below this area is a row of icons for main OSD menu. Below the main menu is a group of icons for submenu that corresponds to one icon selected in the main menu. An analysis of the video signal on resolution and refresh rate will be displayed at the bottom. Applicable icons in the main menu and its subsequent menus are explained below.
“MAIN MENU”: There are in total 5 icons in this menu: One of the 5 icons
will be displayed in inverted color to indicate its 
relationship with the submenu below. Pressing “NEXT” button will shift the selected icon one by one from left to right and then wrap around to the most left. Press “OSD” button to enter the selected sub menu. If there is no button for OSD setting is pressed within a period of time (about 5 seconds to 1 minute as programmed) the OSD window will disappear with all the adjusted parameters saved. Explanations on items in sub menu are as below.
“BRIGHTNESS / CONTRAST ADJUST SUBMENU”: There are 3
icons in this submenu: 
Press “OSD” button to select item or return to main menu. Press “N EXT” button to select among brightness, contrast and exit.
“BRIGHTNESS ADJUST”: When this item is selected, there will be only the brightness icon with an adjustment indication bar under it between the main menu area and the video signal mode. Press “+” button to increase brightness. Press