Studio Technologies 76D V.2.02 - Manual (Page 15)

Model 76D/77 User Guide Issue 2, June 2009
Studio Technologies, Inc. Page 15
for Surround
normal operating data is being inter-
changed with the one or more connected
Model 77 or Model 71 Control Consoles
the control console status LED will light.
The sync status LED will light if a recog-
nized sync source has been connected.
The sync status LED will flash if a valid
sync source is not recognized.
Also upon application of mains power, all
connected Model 77 units will go through
a power-up sequence, lighting each of its
LEDs in succession. Using its 4-digit dis-
play, each Model 77 will then momentarily
display its address, its software version,
and the software versions of the associat-
ed Model 76D. At this point normal system
operation can begin.
All connected Model 71 units will also go
through a power-up sequence after mains
power is applied to the Model 76D. Each
of the units’ three status LEDs will light
momentarily. After the three status LEDs
have been lit, the device address will be
shown briefly using the dim and reference
level LEDs as shown in Figure 8. When
this is complete the Model 71 will enter the
normal operating mode and its status LED
will light if communications are established
with the Model 76D. If the Model 71’s sta-
tus LED does not light check to see if there
is a device address conflict among all con-
nected control consoles and that all cables
are connected properly.
Should an error be detected during the
start-up process the two status LEDs on
the Model 76D will continue to flash in
cadence indefinitely. On the Model 77 units
a diagnostic code may be displayed. Refer
to the Technical Notes section of this user
guide for details.
Configuration
After the physical installation has been
completed it’s important that the system’s
configuration options be carefully reviewed.
In most cases one or more of the operating
parameters will need to be revised to meet
the needs of the specific installation. Many
of the configuration parameters will impact
the signal flow in to and out of the Model
76D Central Controller. Other parameters
affect how the one or more Model 77 Con-
trol Consoles will display status conditions
and respond to user commands. Most of
the configuration choices will be made
using a Model 77 Control Console. One
configuration choice is available for each of
the connected Model 71 Control Consoles.
Configurable Parameters
Many StudioComm functions can be
configured to meet the exact needs of an
installation. The Model 77 Control Console
is used to display and select the desired
system configuration. Here’s an overview
of what can be configured:
• Model 77 Device Address
• Stereo Input C Sample Rate Converter
• Post-Fader Stereo Output
• Sync Type
• Sync Input Termination
• Audio-Synced-to-Video Sample Rate
• Monitor Output Types
• Reference Level
• Overall Display Mode
• Reference Level in dB SPL
• Auto Reference Level Off
• Dim Level