StudioComm 760-03, Руководство пользователя

Страница: 46 / 55

Issue 4, October 2016 Model 760-03/77 User Guide
Page 46 Studio Technologies, Inc.
for Surround
reference buttons. An example could be
where non-technical personnel are allowed
only to use the rotary level control. A con-
figuration parameter, previously described
in the Model 71 Control Console Configu-
ration section, allows button operation to
be disabled.
Rotary Level Control
The rotary level control is used to manually
adjust the post-fader surround and stereo
monitor output levels. Its operating charac-
teristics are identical to those of the Model
77 Control Console, discussed earlier in
this section.
Dim
The dim function allows the post-fader sur-
round and stereo monitor output levels to
be reduced by a fixed amount. Its operat-
ing characteristics are identical to those of
the Model 77 Control Console, discussed
earlier in this section.
An indication is provided should the dim
button be pressed when button operation
has been disabled. Its associated LED will
flash briefly but no operating change will
occur. The LED will continue to display the
status of the dim function as selected by
other Model 77 and Model 71 units.
Reference Level
The reference level button sets the post-
fader surround and stereo monitor output
levels to their preset values. The operat-
ing characteristics are identical to those of
the Model 77 Control Console, discussed
earlier in this section.
An indication is provided should the ref-
erence button be pressed when button
operation has been disabled. The associ-
ated LED will flash briefly but no operating
change will occur. The LED will continue
to display the status of the reference level
function as selected by other Model 77 and
Model 71 units.
Technical Notes
Loss of Sync
The Model 760-03 relies on an external tim-
ing reference (sync) source for proper op-
eration. This can be in the form of an AES3,
word clock, DARS (AES11), bi-level video,
or tri-level video reference signal. In most
cases the sync signal will be connected to
the sync input BNC connector located on
the Model 760-03’s back panel. Alternately,
a configuration choice allows the L/R input
of the AES3 source currently selected for
monitoring to also serve as the system’s
timing reference. Whenever a valid sync
signal has been connected to the Model
760-03 the sync status LED, located on the
unit’s front panel, will light. The sample rate
of the monitor output channels will reflect
the rate of the sync input and, if a video
sync source is utilized, the configured rate.
If a valid sync signal is not present several
visual indications are provided. On the Mod-
el 760-03 the sync status LED will flash. On
all connected Model 77 Control Consoles
the 4-digit LED display will cease normal
operation, instead alternating between the
words
no and sync . When a valid sync
signal is again connected the Model 760-
03’s sync status LED will light steadily. On
the Model 77 units the word
sync will mo-
mentarily be displayed followed by a brief
display of the monitor output sample rate.
The sample rate will display as
32.0
,
44.1
,
48.0 , 88.2 , 96.0 , 176.4 , or 192.0 , reflecting
the impact of the sync source rate and the
Model 760-03’s configuration.