Studio Technologies 230 2008 - Manual (Page 29)

Model 230 User Guide Issue 7, October 2008
Studio Technologies, Inc. Page 29
output to be used, for example, as an
additional talkback output. In this way, the
main output and talkback output functions
can be used independently with neither
impacting the other. This also allows all
three buttons to be used simultaneously.
Note that as is always the case the audio
source for the main output is the output
of the microphone preamplifier.
In summary, when selected for the
correct application, each of the four sys-
tem modes can prove to be very useful.
A thorough study of how they impact the
Model 230’s operation can lead to many
interesting and powerful uses.
Conclusion
Once the switches have been set to the
desired configuration, it may be time to
reattach the security plate. The exception
is if the trim pots associated with the line
inputs and talkback-to-intercom side-
tone need to be adjusted. Details are
provided later in this user guide. The plate
attaches using the four rubber bumpers.
They should be hand-tightened only; no
tools are to be used.
Operation
At this point the desired input, output,
and power connections should have been
made. The button labels may have been
revised. After carefully reviewing the appli-
cation, the configuration switches should
have been set. Normal operation of the
Model 230 can now begin. The unit will
begin functioning as soon as a power
source is connected. As previously dis-
cussed, power for the Model 230 can
be provided by an IFB circuit, an inter-
com line, or an external source of 24 volt
DC. It’s important to highlight the fact that
the Model 230 is an active device. Audio
signals will not be present on the outputs
unless correct power has been supplied.
Specifically, the microphone does not
passively “cut through” to the main output
connector!
Upon Model 230 power up, the four status
LEDs will light in succession as a firmware
“boot up” indication. The unit will then
begin normal operation. Depending on the
selected configuration, one LED associated
with the state of the main output may be lit.
The user is now presented with three but-
tons, four LEDs, and two rotary controls.
These are simple to operate and under-
stand, as will be described in the following
paragraphs.
Pushbutton Switches and
Status LEDs
Three pushbutton switches are used to
control the main output and the talkback
functions. The way each operates depends
on the selected configuration. Four LED in-
dicators are located adjacent to the buttons.
They reflect the status of the main output
and the talkback functions.
Main Output Button and LED Indicators
The button on the left, factory labeled
as COUGH, functions according to the
selected configuration. Two LED indicators,
located directly above the button, are
associated with the status of the button
and/or the main output. If the Model 230 is
set to either of the on-air modes the green
LED, located on the right, is lit whenever the
main output is active. This could be consid-
ered as an “on-air” or mic active indicator.
At the least it should serve as a “careful
what you say” warning! The red LED, locat-
ed on the left, will be lit whenever the main
output is muted. This indicates that it’s safe
to speak as one sees fit.