Viewing and adjusting the input audio level, Viewing.and.adjusting.the.input.audio.level, Preliminar y – Extron Electronics MVX Plus 128 VGA A User Guide User Manual
Page 58: Operation, cont’d

Operation, cont’d
MVX Plus 128 VGA A Matrix Switcher • Operation
3-32
PRELIMINAR
Y
Viewing and adjusting the input audio level
The audio level of each input can be displayed and adjusted through a range of
-18 dB to +24 dB to ensure that there is no noticeable volume difference among
sources (figure 3-53). The audio level can be adjusted from the front panel or under
serial port or Ethernet control. The default audio level is 0 dB.
Audio
Inputs
Audio
Inputs
VCR
No noticeable
volume differences
between sources
Audio System
CD Jukebox
MVX Plus 128 VGA A
0
-3
-6
-9
-12
-15
Low Audio
Output Level
+4
+1
-2
-5
-8
-12
-18
-21
-15
-18
3
+7
6
+10
9
+13
12
+16
15
+19
18
+21
21
+24
VU
dBu
0
-3
-6
-9
-12
-15
High Audio
Output Level
+4
+1
-2
-5
-8
-12
-18
-21
-15
-18
3
+7
6
+10
9
+13
12
+16
15
+19
18
+21
21
+24
VU
dBu
0
-3
-6
-9
-12
-15
Output
Level
+4
+1
-2
-5
-8
-12
-18
-21
-15
-18
3
+7
6
+10
9
+13
12
+16
15
+19
18
+21
21
+24
VU
dBu
AUDIO
VIDEO
I/O
CONTROL
ENTER
PRESET
VIEW
ESC
INPUTS
1 2 3 4 5 6 7 8 9 10 11 12
OUTPUTS
1 2 3 4 5 6 7 8
MVX SERIES SWITCHER
WIDEBAND MATRIX SWITCHER WITH ADSP™
Figure 3-53 — Audio gain and attenuation
1
.
Press the Esc button to clear any input buttons, output buttons, or control
buttons that may be lit.
2
.
To enter Audio mode, press and hold the Audio button until the button begins
to blink red, then release the button.
3
.
Press and release an input button to select an input. The output buttons
display the audio level for the selected input; each output LED indicates 1 dB
when blinking slowly, 2 dB when blinking quickly, and 3 dB when lit steadily.
Green output buttons indicate a gain (+) audio level and red output buttons
indicate an attenuation (–) level. See the table on the next page to read the
displayed audio level.
4
.
Press and release the Esc (
>
) and View (
<
) buttons to increase and decrease
the audio level.
5
.
Press and release the Audio button to exit the Audio mode. The Audio button
stops blinking.
N
• Pressing the Enter or Preset button also exits
Audio mode. Pressing the
Preset button changes to
Recall Preset mode.
• There is one audio level setting per input. The audio level setting is shared
by the left and right audio inputs.
• The audio level settings 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
configuration to RGBHV and audio selected for configuration (RGBHV and
Audio buttons lit).