Studio Technologies 761 - Manual (Page 6)

Issue 1, March 2008 Model 761/771 User Guide
Page 6 Studio Technologies, Inc.
for Surround
the Model 761 separates out the dialnorm
element that relates to one of the con-
nected 5.1 surround audio sources. This
dialnorm level value can then be displayed
on the Model 771 Control Console, as
well as used to automatically adjust the
monitor output level. This provides a
unique solution to the broadcast and post-
production world, allowing a professional
environment to accurately simulate an end
user’s experience.
Digital audio sources are interfaced with
the Model 761 using nine BNC connectors.
Analog monitor output signal connections
are made using one 25-pin D-subminia-
ture connector. One 9-pin D-subminiature
connector is used to link the Model 761 to
the Model 771 Control Console. A second
9-pin D-sub connector is used to interface
metadata and remote control signals with
the Model 761. An advanced fl ash-based
microcontroller integrated circuit provides
the logic “horsepower” for the unit. AC
mains power is connected directly to
the Model 761, which is factory selected
for 100, 120, or 220/240 V operation.
The internal power supply utilizes two
toroidal mains transformers for quiet
audio operation.
Additional Details
The Model 771 provides four buttons
and associated LEDs for selection of the
input source to be monitored. A total of
six sources can be monitored, one being
active at a time. Two of the sources are 5.1
surround, while the other four are monau-
ral. For fl exibility, one of the 5.1 inputs can
be confi gured to be directly compatible
with a 2-channel stereo source.
Figure 1. Model 761 Central Controller Front Panel
Figure 2. Model 761 Central Controller Back Panel
Power
present
LED
Control console
to/from data
active LED
Stereo Input C
connection
Analog monitor
output connections
To/from
Model 771
Control
Console
AC mains
input connection
RS-485 and
remote control
inputs
Surround Input B
connections
Surround Input A
connections
Stereo Input A and
Stereo Input B
connections
Metadata
active
LED