6x1 HDMI Multimedia Presentation Switch Installation Guide© MuxLab Inc. 2019 125.1.4 Display ControlThe switcher supports CEC , and the DISPLAY CONTROL buttons on the front panelare designed for Display On/Off and volume adjustment.ON: Display is OnOFF: Display is OffMute/unmute audioLower Audio volumeIncrease Audio Volume5.1.5 VGA ResolutionThe RES button on the front panel allows you to select a VGA resolution. To select aspecific resolution you may press the RES button repeatedly until the LED of thedesired resolution is lighted green.5.2 Operations of the Rear panel5.2.1 EDID SettingsThe Extended Display Identification Data (EDID) allows the source to match the displayresolution. By default, the source device obtains its EDID from the first connecteddisplay. The 4 pin DIP switch on the rear panel can be used to set the EDID to a fixedvalue. Following table shows pre-defined EDID settings.Switch Settings (1 - 4) Video Resolution Audio Format0000 Pass-through0001 1080p60Hz RGB 4:4:4 8 bit Stereo audio0010 1080p60Hz RGB 4:4:4 8 bit High Definition Audio0011 1080p60Hz RGB 4:4:4 12 bit Stereo audio0100 1080p60Hz RGB 4:4:4 12 bit High Definition Audio0101 3840x2160p60Hz RGB 4:2:0 12bit Stereo Audio0110 3840x2160p60Hz RGB 4:2:0 12bit High Definition Audio0111 3840x2160@60Hz HDR Stereo Audio