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SOLIDYNE 462
dsp - broadcast digital processor
MAIN MENU
WARNING
Remember that being in the main screen, turning the JOG
or touching it briefly, you accede to the mode ‘program
selection’. In this mode; turning the JOG you explore the
462’s programs. In order to leave the ‘programs selection’
mode, press and hold the JOG. In order to accede to the
main menu press and hold again.
If being in the main menu or any settings screen changes
not occur during 10 minutes, the unit returns to the main
screen, discarding the changes.
3.2.1 INPUT SETUP
a)
Here you define the
audio level
and
type of
input
. The operation on this screen follows the
concept of the previous ones: to select an option
(“Input selection” or “Input level”) turn the JOG and
touch briefly to confirm. Now turn the JOG again
to change the value of the chosen option. Touch
briefly to confirm.
Selecting this option the following screen will
appear:
INPUT SELECTION
¨
Analog:
Select this option when the processor
is connected ONLY through the analogical input.
¨
Digital only:
Choose this option when the unit
is connected ONLY through AES/3. Also the
analogical inputs can be connected, as back up,
but they will be used only in case that the carrier
of signal AES/3 interrupts. In this case, the
equipment exchanges automatically to the
analogical inputs, being in that mode until the
digital signal is reestablished.
þ
Auto Search:
(default) It uses the AES/3 digital
inputs in case of finding a source of digital signal.
Otherwise, uses the analogical inputs. In case of
finding only silence or a total lost of digital AES/3,
the unit switches to the analogical inputs. This
type of faults in signal AES/3 is characteristic
when “a digital data link falls”. As signal AES/3 is
regenerated in the receiver, the digital streaming
follows present, but without content of audio
(channels muted).
Reestablishing the signal in Auto Search
mode:
The unit switches automatically to the
analogical mode in the following cases:
•
After losing AES/3
•
Absence AES signal
•
Absence of audio in the digital signal.
The reestablishment to the digital mode happens
in immediately in case signal AES/3 is had
completely lost. Since when recognizing a valid
digital carrier, the processor quickly returns to use
the digital audio like source of incoming signal. In
case the digital signal exists, but the same one
contains silence, the processor operates as
follows: At intervals of 5 minutes the processor
interrupts briefly (1 sec) the audio on the left
channel, connecting in its place the digital signal
of the left channel; verifying soon if the digital
signal were reestablished. If it continues in
absolute silence, then it reestablishes the
analogical signal. This process is repeated time
and time again until as returns signal AES/3.
When the digital audio reappears, the processor
returns to digital mode.
While the digital signal remains absent, the audio
on the left channel is briefly muted at intervals of 5
minutes, to alarm to the engineers of the radio
(and to the operators) that the processor is
working with the analogical backup inputs. This
has been intentionally designing in this way, since
otherwise; an accurate confirmation does not exist
on problems in the signal AES/3.
A. INPUT LEVEL
Define the nominal level of the analogical input
signal. So that the AGC (automatic gain control)
operates correctly, is very important to fit this level
correctly.
This value must agree with the
nominal output
level of your console
(in the case of Solidyne
consoles this level is + 4 dBm).
NOTE:
If you unknown the output level of your console, put the
console’s level at 0 VU peak and reads the level in the
462dsp/AM’s input VU-meters.