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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
Indicator. 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
page 13). The two mute Indicators 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 Indicators
off). Rotate the program volume knob clockwise to
increase and counterclockwise to decrease the audio
level. The Indicators display the level as the knob is
rotated.
4.
When the desired level is achieved, select another
input for adjustment 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 MUTE 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 exits the
audio adjustment mode.
Audio gain and attenuation are also adjusted using PCS
software control (see
and SIS commands (see
attenuation (case-sensitive)
figure 12
Audio Config Page
on page 40)
Program audio gain and
on page 51).
Front Panel LEDs
1
2
3
4
5
dB
+24
+23
+22
+21
+20
+19
+18
+17
+16
+15
+14
F
+13
S
+12
on
+11
F
+10
S
+9
+8
F
+7
S
+6
+5
F
+4
S
+3
+2
F
+1
S
0
-1
S
-2
F
-3
-4
S
-5
F
-6
-7
S
-8
F
-9
-10
S
-11
F
-12
-13
S
-14
F
-15
-16
-17
-18
1
2
3
4
5
= on
= blinking fast
F
S
MPS 602 • Operation
6
7
8
9
F
S
F
S
F
S
S
F
6
7
8
9
= off
= blinking slow
18
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