Extron electronics MVX 128, User Manual

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Operation, cont’d
MVX 128 A VGA Matrix Switchers • Operation
3-28
PRELIMINAR
Y
Viewing and adjusting the output volume
The audio level of each output can be displayed and adjusted through a range of
100% (no attenuation) to 0% (maximum [98 dB] attenuation). The audio level can
be adjusted from the front panel or under RS-232/RS-422 control.
1 . Press the Esc button to clear any input LEDs, output LEDs, or control LEDs
that are lit.
2 . To enter the Audio mode, press and hold the Audio button until the LED
begins to blink, then release the button.
3 . Press and release an output button to select an output. The input LEDs
display the volume level for the selected output. The switchers indicate the
volume differently, depending on number of input LEDs, but as a general
rule, the more LEDs that are lit, the higher the volume. The fewer LEDs that
are lit, the lower the volume.
For a more detailed analysis of decoding the displayed value, see Reading the
displayed volume on the next page.
4 . Press and release the Esc (
>
) and View (
<
) buttons to increase and decrease
the audio volume by 1 dB per each push of the button or press and hold
the button to change the level at a rate of 3 dB per second until the button is
released or the upper or lower limit is reached.
5 . Press and release the Audio button to save the audio settings and exit the
Audio mode. The Audio button stops blinking.
N
• There is one audio volume level setting per output. The audio level setting is
shared by the left and right audio inputs.
• The audio volume levels are stored in non-volatile memory. When power is
removed and restored, the audio level settings are retained.
• Exiting Audio mode by pressing the Audio button always returns the I/O
LEDs to both RGBHV and Audio lit.
• Pressing the Enter or Preset button also exits Audio mode. Pressing the
Preset button changes to Recall Preset mode.