Studio Technologies 76DBA V.3.00 - Manual (Page 9)

Model 76DBA/77B User Guide Issue 1, November 2010
Studio Technologies, Inc. Page 9
for Surround
surround digital monitor output to be
selected for pre- or post-downmix
operation.
In addition to the surround digital and
analog monitor outputs, auxiliary stereo
digital and analog monitor outputs are
also provided. A stereo signal, connected
to stereo input C on the Model 76DBA
Central Controller, can be routed to the
auxiliary stereo digital and analog monitor
outputs. A pushbutton on the Model 77B
Control Console allows on/off control of the
signal; no level control or signal modifica-
tion takes place. The auxiliary stereo digital
and analog monitor outputs can be useful
in special applications, e.g., in a broadcast
control room setting where an audio signal,
such as site-event cue signals, needs to be
monitored by way of an independent set of
loudspeakers.
For flexibility, the StudioComm for Sur-
round system is designed to easily inte-
grate with equipment such as production
intercom systems, on-air or recording tally
signals, and audio consoles. Three remote-
control inputs provide access to the mute
all, dim, and auxiliary stereo monitor out-
put on/off functions. By providing access
to these functions, talkback or slate activity
from an audio console or other commu-
nications system can control the level of
the post-fader surround digital and analog
monitor outputs or enable the auxiliary
stereo digital and analog monitor outputs.
Installation
In this section you will be installing the
Model 76DBA Central Controller in an
equipment rack. Connections to the digital
audio inputs and digital and analog monitor
outputs will be made. A dedicated digital
audio timing reference signal can
be connected to the sync input. If desired,
a source of Dolby E metadata will be con-
nected and external equipment will be
interfaced to the remote control inputs. A
location will be selected for the first Model
77B Control Console and it will be con-
nected to the Model 76DBA. AC mains
power will be connected to the Model
76DBA. For advanced applications up to
three additional Model 77B or Model 71
Control Console units can be connected
to the Model 76DBA.
System Components
The main shipping carton contains one
each of the following: Model 76DBA
Central Controller, Model 77B Control
Console, 9-pin D-sub interconnecting
cable, and user guide. Also included in
the shipping carton is a North American-
standard AC mains cord. Your dealer or
distributor should provide an AC mains
cord appropriate for destinations outside
of North America. Any additional Model
77B or Model 71 Control Consoles will be
shipped in separate cartons.
Mounting the Model 76DBA
The Model 76DBA Central Controller
requires one space (1U) in a standard
19-inch (48.3 cm) equipment rack. Secure
the Model 76DBA into the equipment rack
using two mounting screws per side.
Select a location that is convenient for
making connections to the audio signals
as well as interfacing with the first (or only)
Model 77B Control Console. A cable is
supplied to connect the Model 76DBA to
the Model 77B. If the needs of a specific
installation dictate, an alternate-length
interconnecting cable can be fabricated
and used.