Filter
Top Products
2. Select an input: Press and release the Input 5 button.
VU
3
3
0
+
6
10
2
1
4
3
OUTPUTS
6
5
4
INPUTS
+dB
-dB
The Output 1, Output 2, and Output 3
LEDs display the audio level range of
input 5.
The +dB LED indicates
a gain (positive) level.
The power LED lights
steadily or blinks off only
occasionally to indicate
that the adjusted level is
too high.
A VU meter connected
to output 1 indicates
that the adjusted level
is approximately +9 dB
above the –10 dBV
internal level.
In this example, the LEDs indicate gain in the +6 dB to +10 dB range.
Press and release the Input 5 button.
The Input 5 LED lights to
indicate that input 5 is selected.
If the +dB and –dB LED are both lit they indicate an input gain of 0 dB. Otherwise, you
can determine the exact gain or attenuation using the following procedure:
a. If one or more output LEDs are lit AND the +dB LED is lit, press and release the
<
button repeatedly until the highest-numbered lit output LED goes out. Count the
button presses. In example 8, assume a value of +8 dB. It will take three presses of
the
<
button for the Output 1 LED to go out.
If one or more output LEDs are lit AND the –dB LED is lit, press and release the
>
button repeatedly until the highest-numbered lit output LED goes out. Count the
button presses.
If the +dB LED is lit and NO output LEDs are lit, press and release the
<
button
repeatedly until the +dB and –dB LED are both lit, indicating 0 dB. Count the button
presses.
If the –dB LED is lit and NO output LEDs are lit, press and release the
>
button
repeatedly until the +dB and –dB LED are both lit, indicating 0 dB. Count the button
presses.
b. Return to the original audio gain setting by pressing and releasing the
<
or
>
button
(the opposite of the button you pressed in step a) the same number of steps you
pressed the opposite arrow button in step 1. In example 8, this means pressing the
>
button three times.
c. Add the dB value indicated by the highest-numbered lit output LED (no output LEDs
lit and both dB LEDs lit = 0 dB) and either of the following:
• The number of button presses from 0 dB, or
• The number of button presses from when the highest-numbered output LED lit.
In example 8:
Output 1 LED: 6 dB
+ 2 presses: +2 dB
8 dB
The lit +dB or –dB LED indicates the gain (+) or attenuation (–).
MVX 44 / 48 / 84 / 88 VGA Matrix Switchers • Operation 25