Extron electronic MPS602 Switch User Manual


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Audio Gain and Attenuation Adjustments
Each audio input level (analog inputs 1 through 5 only)
is adjusted from the front panel over a range of -18 dB
to +24 dB. The adjustments normalize the input audio
levels so that output volume is consistent for all inputs.
The front panel input indicator LEDs provide a status
of the current input gain or attenuation level. When
adjusting the audio level, the inputs 1 and 2 (RGB inputs
1 and 2) and inputs 1 through 6 function as indicators of
the current audio level for the selected input as shown in
the table.
Gain or attenuation is indicated by the red Exec Mode
LED. Off indicates gain (+ dB) or zero. On indicates
audio is attenuated (- dB).
To adjust the input audio level from the
front panel:
1. Press and hold the Program Audio Mute and
Micmute buttons for 3 seconds (see figure 11 on
page 12). The two Mute LEDs flash three times as
the adjustment mode is enabled.
2. Press the input button for the desired audio
level adjustment. If no input button is pressed,
the switcher times out and exits the audio input
adjustmentmode.
3. When the input is selected, the front panel LEDs
indicate the current gain or attenuation setting for
that input. Factory default is 0dB (all nine LEDs
off). Rotate the program volume knob clockwise
to increase and counterclockwise to decrease the
audio level. The LEDs display the level as the knob
is rotated.
4. Once the desired level is achieved, to adjust another
input, select it within 3 seconds.
If audio adjustments are complete:
a. Do not press any front panel buttons for at least
3 seconds to exit the adjustmentmode, or
b. Press the Program audio and Micmute buttons
simultaneously to exit the adjustmentmode.
At any time during the adjustments, if front panel
buttons are not pressed or the program audio knob is
not rotated within 3 seconds, the switcher times out and
the audio adjustmentmode is exited.
S
F
S
F
S
F
S
F
S
F
S
F
S
F
S
F
S
F
S
F
S
F
S
F
S
F
S
F
Front Panel LEDs
VGA Input 1
VGA Input 2
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Exec Mode
8765432
19
= on = off
= blinking fast = blinking slow
S
F
-10
-11
-12
-13
-14
-15
-16
-17
-18
+9
+8
+7
+6
+5
+4
+3
+2
+1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
+18
+17
+16
+15
+14
+13
+12
+11
+10
+24
+23
+22
+21
+20
+19
8
7
dB
6
5
432
19
MPS602 • Operation 17
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