VIEWSONIC ViewBoard IFP8662 86" 4K Interactive Display - Manual (Page 43)

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Display Settings
1. Press q on the remote control and select the Display menu.
2. Press q / p / t / u on the remote control or directly touch the option to select it.
3. Adjust the Brightness, Contrast, Hue, and Sharpness directly by touching and
adjusting each value, or with the remote control by pressing ENTER to adjust the
option.
4. Drag the blue light slider directly to adjust the blue light value.
5. Press EPG/BACK on the remote control, or touch a blank area outside of the
menu to exit.