![](/images/new-backgrounds/1221421/22142119x1.webp)
b. Press “”or ““to increase or decrease the contrast of the display. Then press “1”to confirm the adjustment and back to OSD main menu.
2)Brightness
a. Press “”or ““to move the highlight to Brightness and press “1”to enter.
b. Press “”or ““to increase or decrease the brightness of the display. Press “1”to confirm the adjustment and back to OSD main menu.
9