Extron Electronics Matrix 50 Series - Manual (Page 33)

3-13 Matrix 50 Series Switchers • Operation
Viewing and adjusting the audio level
The audio level of each input can be displayed and adjusted through a range of
-15dB to +9dB to ensure that there is no noticeable volume difference among
sources. The audio level can be adjusted from the front panel or by using
Extron’s Windows-based control program.
1 . Press and hold the Audio button until the Audio LED begins to blink, then
release the Audio button.
2 . Press and release an input button to select an input. The audio level for the
selected input is displayed by the output LEDs and the polarity (+ or -) is
displayed by the view or Esc LEDs.
3 . Press and release the Esc ( ) and View ( ) buttons to increase and
decrease the audio level.
4 . Press and release the Audio button to exit the audio display and
adjustment mode. The Audio LED stops blinking and turns off.
1. There is one audio level setting per input. The audio level setting is
shared by the left and right audio inputs.
2. The audio level settings are stored in non-volatile memory. When
power is removed and restored, the audio level settings are retained.
Example 8: Viewing and adjusting an audio level
See figure 3-14 and figure 3-15 and the following steps for an example of viewing
and adjusting the audio level on a 12x8
Matrix 50 switcher with audio.
A Press and release the Esc button. The
Esc LED flashes once.
B Press and hold the Audio button for
approximately 2 seconds until the
Audio LED begins to blink, then release
the Audio button.
C Press and release the input 5 button.
The input 5 LED lights. The audio level
for the selected input is displayed by the
output LEDs. The polarity is indicated
by either the Esc (
) or View ( ) LED
blinking.
Each output LED indicates 1dB when
blinking and 2dB when lit.
The blinking Esc ( ) LED indicates a
positive (gain) level. The blinking
View (
) LED indicates a negative
(attenuation) level.
1 5 3 4 2 8 6 7
Output LED
Matrix 50 with audio
dB
+9
+8
+7
+6
+5
+4
+3
+2
+1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
View Esc