NEC FA Series Installation And Maintenance Manual page 74

Click "Advanced Settings" ( ) (a) to expand the setting screen.
(1) Brightness
Set the brightness of the screen using the slider (b).
Increasing the value increases the brightness.
(2) Gamma correction
Set the gamma correction value using the slider (c).
Increasing the value makes the dark parts of the screen darker.
(3) Color temperature
Set the color temperature using the slider (d).
Increasing the value makes the colors more bluish, while reducing the value makes the colors more
reddish.
When the setting is complete, click the "Save to HW" button to save the settings.
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