Extron electronic MPX 866 A manual see “Muting and Unmuting Video and Audio Outputs” on

GView (<) button and LED — The View (<) button and LED have one primary function (❏) and four secondary (•) functions:

❏Selects View-Onlymode, which displays the current configuration, and indicates its selection.

NOTE: View-onlymode also provides a way to mute and unmute the outputs

(see “Muting and Unmuting Video and Audio Outputs” on

page 34.

•Decrease the audio level of the selected input in Audio mode.

•Decrease the volume of the selected output in Audio mode.

•With the Enter, Preset, and Esc buttons, select Serial Port Configuration mode.

•Select 38400 baud for the RS-232 Primary port in Serial Port Configuration mode and indicate its selection.

HEsc (>) button and LED — The Esc (>) button and LED have one primary function (❏) and four secondary (•) functions:

❏Cancels operations or selections in progress and resets the front panel LEDs and flashes once to indicate that the escape function has been activated.

NOTE: The Esc (>) button does not reset the current configuration, the Video

button and Audio button selection, any presets, or any audio gain, attenuation, or volume settings.

•Increase the audio level of the selected input in Audio mode.

•Increase the volume of the selected output in Audio mode.

•With the Enter, Preset, and View buttons, select Serial Port Configuration mode.

•Select 115200 baud for the RS-232 Primary port in Serial Port Configuration mode and indicate its selection.

MPX 866 A Media Presentation Matrix Switcher • Operation 20