AOC 2219V1 - Manual (Page 9)

Using On Screen Display (OSD) Functions
Main Menu
7
English
1
Exit from OSD menu.
Auto adjust the image when at root menu. 2
Confirm the selection.
Select the desired item when in OSD menu.
When not in OSD menu, it is to immediately activate Contrast/
Brightness. It should be change to Contrast/ Brightness by pressing
button W. V or W
When not in OSD menu, it is to immediately activate Screen 16:10/
4:3. It should be change to image ratio by pressing button V.
▼ + ▲ Recall both of Contrast and Brightness.
1 + ▼ Power Lock (when not in OSD menu)
1 + ▲ OSD Lock (when not in OSD menu)
Display main menu.