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Issue 1, September 2007 Model 233 User Guide
Page 30 Studio Technologies, Inc.
state when talkback began, once talk-
back activity ends that state will resume;
the main output will again be in its on
(“latched”) state.
Talkback 1 Button and LED Indicator
The button in the center, factory labeled
TALKBACK 1, controls the function(s) as-
sociated with talkback 1. The manner in
which the button functions depends on
the way it was configured. An LED indi-
cator, green in color, is located directly
above the button. It lights whenever talk-
back 1 is active. If the talkback 1 function
mode has been configured for disabled, it
will light only if the auxiliary relay has been
assigned to follow the talkback 1 button.
If the Model 233 has been selected to the
on-air system mode, whenever talkback 1
is active the main output will be placed in
the muted state. If the Model 233 is set to
the production system mode the status of
talkback 1 will not impact the main output.
Talkback 1 Button Modes
• Push to talk: If this mode is selected
the function(s) associated with the
talkback 1 button is normally off. The
function(s) will become active whenever
the button is pressed and held.
• Hybrid: This mode is a combination
of push to talk and alternate action.
If the button is pressed and held, the
function(s) associated with the talkback
1 button will become active until the
button is released. If the button is mo-
mentarily “tapped” the function(s) will
change state. Upon Model 233 power
up talkback 1 will be in its off state.
Talkback 2 Button and LED Indicator
The button on the right, factory labeled
TALKBACK 2, controls the function(s)
associated with talkback 2. The manner
in which the button functions depends on
how it was configured. An LED indicator,
green in color, is located directly above
the button. It lights whenever talkback 2
is active. If the talkback 2 function mode
has been configured for disabled, it will
light only if the auxiliary relay has been
assigned to follow the talkback 2 button.
If the Model 233 is selected to the on-air
system mode, whenever talkback 2 is ac-
tive the main output will be placed in the
muted state. If the Model 233 is set to the
production system mode the status of talk-
back 2 will not impact the main output.
Talkback Output 2 Button Modes
• Push to talk: If this mode is selected
the function(s) associated with the
talkback 2 button is normally off. The
function(s) will become active whenever
the button is pressed and held.
• Hybrid: This mode is a combination
of push to talk and alternate action.
If the button is pressed and held, the
function(s) associated with the talkback
2 button will become active until the
button is released. If the button is mo-
mentarily “tapped” the function(s) will
change state. Upon Model 233 power
up talkback 2 will be in its off state.
Headphone Output Level Controls
Three rotary controls (“pots”) are located
on the Model 233’s front panel and are
associated with the stereo headphone
output. The manner in which the controls
function depend on the selected con-
figuration. The control on the far right is
associated with the sidetone function.
It’s operation will be discussed in a later
section. One configuration parameter sets
the control on the far left and the control
in the center to operate in a level/level or
a level/balance mode. Another parameter
allows the left/right assignment of the