Extron electronic MVX 128 manual See Viewing and adjusting the input audio level on

f View (<) button and LED — The View (<) button and LED have two primary functions (•) and six secondary (❏) functions:

•Selects a View-Onlymode that displays the current configuration.

NView-only mode also provides a way to mute and unmute the outputs. See Muting and unmuting video and/or audio on page 3-18.

•Indicates that View-Onlymode is active.

❏Decreases the audio level of the selected input. See Viewing and adjusting the input audio level on page 3-24.

❏Indicates a negative (attenuation) audio level. See Viewing and adjusting the input audio level on page 3-24.

❏Decreases the volume of the selected output. See Viewing and adjusting the output volume on page 3-28.

❏With the Enter, Preset, and Esc buttons, selects Serial Port Configuration mode. See Selecting the RS-232/RS-422 protocol and baud rate on page 3-33.

❏Selects 38400 baud for the RS-232/RS-422 port in Serial Port Configuration mode. See Selecting the RS-232/RS-422 protocol and baud rate on page 3-33.

❏Indicates that the RS-232/RS-422 port is set to 38400 baud in Serial Port Configuration mode. See Selecting the RS-232/RS-422 protocol and baud rate on page 3-33.

g Esc (>) button and LED — The Esc (>) button and LED have two primary functions (•) and six secondary (❏) functions:

•Cancels operations or selections in progress and resets the front panel button indicators.

NThe Esc (>) button does not reset the current configuration, the RGBHV button and Audio selection button, any presets, or any audio gain or attenuation settings.

•Flashes once to indicate that the escape function has been activated.

❏Increases the audio level of the selected input.

See Viewing and adjusting the input audio level on page 3-24.

❏Indicates a positive (gain) audio level. See Viewing and adjusting the input audio level on page 3-24.

❏Increases the volume of the selected output. See Viewing and adjusting the output volume on page 3-28.

❏With the Enter, Preset, and View buttons, selects Serial Port Configuration mode. See Selecting the RS-232/RS-422 protocol and baud rate on page 3-33.

❏Selects 115200 baud for the RS-232/RS-422 port in Serial Port Configuration mode. See Selecting the RS-232/RS-422 protocol and baud rate on page 3-33.

❏Indicates that the RS-232/RS-422 port is set to 115200 baud in Serial Port Configuration mode. See Selecting the RS-232/RS-422 protocol and baud rate on page 3-33.

MVX 128 A VGA Matrix Switchers • Operation 3-5