Extron Electronics MVX VGA A User Guide - Manual (Page 53)

Operation, cont’d
MVX VGA A Matrix Switchers • Operation 3-30
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 [76 dB] attenuation). The audio level can
be adjusted from the front panel or via serial port control. The default is 100% (no
attenuation).
N Output volume is protected when front panel Lock mode 2 is selected. You can
view the volume in Lock mode 2 but not adjust it from the front panel.
1 . Press the Esc button to clear any input LEDs, output LEDs, or control LEDs
that are lit.
2 . To enter 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 press of the button.
Or , press and hold either 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 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
button configuration to RGBHV and audio selected for tying (RGBHV and
Audio LEDs lit).
• Pressing the Enter or Preset button also exits Audio mode. Pressing the
Preset button changes to Recall Preset mode.