Manual

Model 214 User Guide Issue 5, December 2018
Studio Technologies, Inc. Page 25
Talkback Button and LED
Indicator
The pushbutton on the right, factory
labeled TALKBACK, controls the audio
signal associated with the talkback output
channel. The manner in which the talkback
pushbutton functions depends on the way
it was configured. One LED indicator
, green
in color, is located directly above the talk-
back pushbutton. It lights whenever the mi-
crophone audio signal is connected to the
talkback output channel. If the Model 214’s
system mode is selected for on-air, when-
ever the talkback function is active the au-
dio signal associated with the main output
channel will be placed in its muted state. If
the Model 214 is selected for the production
mode, the status of the talkback pushbutton
will not impact the status of the audio signal
associated with the main output channel.
Talkback Button Modes
Depending on the selected configuration,
there are two ways the talkback pushbutton
can function:
•
Push to Talk: If this mode is selected the
audio signal associated with the talkback
output channel is normally muted. The
audio signal will become active whenever
the talkback pushbutton is pressed and
held.
•
Hybrid: This mode is a combination of
push to talk and alternate action. If the
pushbutton is pressed and held, the
audio signal associated with the talkback
output channel will become active until
the talkback pushbutton is released. If
the talkback pushbutton is momentarily
“tapped” the audio signal will change
state. Upon Model 214 power up the
audio signal will always be in its muted
state.
Headphone Output
Three rotary controls (“pots”) are located
on the Model 214’s front panel and are as-
sociated with the headphone output. The
way the controls function depends on the
selected headphone output confi
guration.
One configuration parameter sets what
audio input signals are assigned to the
controls. There are four modes available.
Another parameter selects whether the
headphone output channels will maintain
a minimum output level or can be fully
muted.
T
o understand exactly how the level con-
trols on a specific Model 214 will function
requires knowledge of how that unit has
been configured. Please refer to the Con-
figuration section of this guide for details.
It may require a bit of study to fully under-
stand how the controls will function. The
author would like to be able to provide a
simple explanation. But there are really
four simple explanations, one for each
configuration choice!
Each level control has a mechanical step
(detent) that is located at the halfway
(50%) position of its rotation range. This is
intended to serve as an aid to Model 214
users. In an ideal installation, setting the
controls to their detent position will result
in a comfortable headphone output level.
The user, in response to a changing op-
erating environment, can then move the
level controls to get more or less level as
desired. The detent position will always
remain as a useful reference point. To
achieve this condition the audio level on
the appropriate audio inputs will have to
be calibrated as required. This is some-
what counter intuitive to the usual mental-
ity of just providing the user with whatever
level comes up by default. Spending a few
extra minutes “trimming” the input audio