Studio Technologies 76B 2012 - Manual (Page 31)

Model 76B/77B User Guide Issue 3, August 2012
Studio Technologies, Inc. Page 31
for Surround
Operation
Now that you’ve installed and configured
the system, you’re ready to go. You should
find operation very easy. However, taking
time to study this section of the guide may
prove valuable, especially regarding the
system’s support for dialnorm.
Upon power up the system will return to
the last operating condition, including all
selected sources, downmix modes, etc.
As a precaution, however, the monitor
output level will always return to its mini-
mum value. The rotary level control or the
reference level button must then be used
to return the system to the desired monitor
output level.
Model 76B Central Controller
The Model 76B’s front panel contains
three LEDs. The power LED should be lit
whenever AC mains power is connected.
The control console activity LED will light
steadily whenever the Model 76B is com-
municating correctly with the one or more
connected Model 77B units. This LED will
remain off during the system power-up
process, something that typically takes
several seconds to complete. The meta-
data activity LED will light whenever an
active metadata signal has been con-
nected and valid sync word information is
being received.
Model 77B Control Console
StudioComm for Surround operation is
controlled using Model 77B Control Con-
soles and, if connected, the metadata and
remote control inputs. In most installations
only one Model 77B will be present but,
as previously discussed, up to four can
be connected to one Model 76B. To make
things easy to describe, we’ve divided the
operator functions into seven main groups:
input source selection, downmix, monitor
output general functions, channel solo,
auxiliary monitor output, display and dis-
play mode, and remote control inputs.
Any change made to any one Model 77B
will be reflected in the status LEDs and
displays on all the connected units. And
note that all Model 77B units function
simultaneously—there is no priority of
one unit over the others.
Input Source Selection
Four input select buttons work together to
allow monitoring of up to six input sources.
One button serves as a group select while
the other three select the specific input.
The group select button is used to select
the active group, alternating between
groups 1-3 or 4-6. Two LEDs are associ-
ated with this button and indicate which
of the groups is active. The other three
buttons are used to select the specific
input source to be monitored. The choices
are 1/4, 2/5, and 3/6, with the active input
following the status of the group select
function. LEDs are associated with the
input select buttons and indicate which
is active. Note that the Model 77B “remem-
bers” which specific input was last selected
for each group, so changing between
groups will switch between two specific
inputs. This allows rapid switching be-
tween, as an example, input 1 and input 6.
The specific sources assigned to the
input buttons depend on the signals con-
nected to the Model 76B along with how
the system has been configured. Any input
can be assigned to any input select but-
ton. (Technically, the same input could be
assigned to multiple buttons!) This means,
for example, that a surround input could