Extra
1 Press MENU (Menu) to display menu.
2 Press or to select (Luminance), and press to enter.
3 Press or to select submenu.
4 Press or to adjust.
5 Press to exit.
27P1: Auto/D-SUB/DVI/HDMI/DP
27E1H: Auto/D-SUB/HDMI
Select input signal source.
Auto adjust. the picture to default.
Select wide or 4:3 format for display.
Turn on or off DDC/CI Support.
Reset the menu to default.