Extron electronic VGA MATRIX SWITCHERS MVX PLUS 128 - Manual (Page 51)

3-29 MVX Plus 128 VGA Matrix Switchers • Operation
PRELIMINAR
Y
6 . Press and release the View button to exit View-Only mode (fi gure 3-52).
VIEW All input buttons and output buttons
return to unlit or background illumination.
Press the View button
to exit View-Only mode.
The View button returns to
unlit or background
illumination.
Figure 3-52 — Press the View button to exit View-Only mode
Viewing and adjusting the input audio level
On models with audio, 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 (fi gure 3-53). The audio level can be adjusted from the
front panel or under RS-232/RS-422 or Ethernet control.
Audio
Inputs
Audio
Inputs
VCR
No noticeable
volume differences
between sources
Audio System
CD Jukebox
MVX 128 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 audio level and polarity (+ or –) for the selected input. Each lit output
button indicates 1 dB of gain or attenuation. Green output buttons indicate a
gain (+) audio level and red buttons indicate an attenuation (–) 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.