Extron Electronics MAV Plus Series - Manual (Page 78)

3-35 CrossPoint 450 Plus and MAV Plus Switchers • Operation
Viewing and adjusting the input audio level (audio models)
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 (figure 3-56). The audio level can be adjusted from the
front panel or under serial port or Ethernet control. The default audio input level is
0 dB.
Audio
Inputs
Audio
Inputs
VCR
No noticeable
volume differences
between sources
Audio System
CD Jukebox
Crosspoint 450 Plus 3232
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
I
N
P
U
T
S
O
U
T
P
U
T
S
C O N T R O L I / O
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
POWER SUPPLY PRIMARY REDUNDANT
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
CROSSPOINT PLUS SERIES SWITCHER WITH ADSP
PRESET ENTER ESC RGBHV VIEW AUDIO
Figure 3-56 — 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.
• Pressing the Enter or Preset button also exits Audio mode. Pressing the
Preset button changes to Recall Preset mode.
• There is one audio level setting per input. The audio level setting is
shared by the left and right audio inputs.
• The audio level settings are stored in non-volatile memory. When power
is removed and restored, the audio level settings are retained.
• Exiting Audio mode by pressing the Audio button always returns the I/O
configuration to RGBHV (CrossPoint 450 Plus switchers) or video
(MAV Plus switchers) and audio selected for configuration.