User Guide Manual

Operation, cont’d
MTPX Twisted Pair Matrix Switchers • Operation
3-26
PRELIMINARY
Viewing and adjusting the TP input audio level
The audio level of each TP 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 3-42). The audio level can be adjusted from the front panel or via
serial port control. The default audio level is 0 dB.
Audio
Inputs
Audio
Inputs
VCR
No noticeable
volume differences
between sources
Audio System
CD Jukebox
MTPX 3232
Twisted Pair Matrix Switcher
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
INPUTS
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
OUTPUTS
AUDIORGBHVENTERPRESETVIEWECS
MTPX SERIES
MTP MATRIX SWITCHER
CONFIG
Figure 3-42 — Audio gain and attenuation
1. Press the Esc button to clear any input LEDs, output LEDs, or control LEDs
that are lit.
2
. To enter the Audio mode, press and hold the Audio button until the LED
begins to blink, then release the button.
3
. Press and release an input button for a TP input to select that input. The
output LEDs display the audio level for the selected input and the Esc (
>
) and
View (
<
)LEDsdisplaythepolarity(gain[+]orattenuation[–]).Seethetables
on the next two pages to read the displayed audio level.
4
. Press and release the Esc (
>
) and View (
<
) buttons to increase and decrease
the audio level by 1 dB per each push of the button.
Or, press and hold the button to change the level at a rate of 3 dB per second
until the button is released or the upper or lower limit is reached.
5
. Press and release the Audio button to exit the Audio mode. The Audio LED
stops blinking.
N
 • 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 video and audio selected for configuration (Video and
Audio LEDs lit).