VX4S/VX4 User's Manual-7-Setp3: BrightnessReturn to the main menu interface. Press the Knob to select the corresponding valueof Brightness. You can rotate the Knob to adjust the value at this time.BrightnessScreen SettingsInput SettingsOutput Settings25% BrightnessScreen SettingsInput SettingsOutput Settings25%Setp4: Output SettingsOutput settings are divided into three cases:First one: disable Scaling, i.e., the sizes of output image and input image are thesame, and original scale output is used. If the input resolution is smaller than the LEDdisplay in one direction, LED display may not become bright in this direction; if theinput resolution is greater than the LED display in one direction, the input contentsmay not be displayed completely in this direction. This option is applicable to theapplication scenarios requiring point-to-point display. Horizontal offset and verticaloffset of images can be set according to the needs, and at this time the displayedcontents may move to the left or top at the LED display.At this point [Scaling] is disabled.Second one: Auto Fit� At this point [Scaling] is enabled, and [Auto Fit] is enabled.When enabling [Auto Fit], the input contents will be fully zoomed to the size of LEDdisplay, and the input contents will be adaptive to the size of LED display. This modeis suitable for full-screen playback of the contents.Xi’an NovaStar Tech Co., Ltd.