Issue 4, October 2016
Model 760-03/77 User Guide
Page 42
Studio Technologies, Inc.
for Surround
stored for the reference value the reference
level LED will flash. This exact level can be
reached through the use of the rotary level
control, either by itself or through the setting
of the rotary level control in conjunction with
the dim function. Whatever path the post-
fader surround and stereo monitor outputs
take to reach the reference level value, it will
cause the reference level LED to flash!
Mute All
Pressing the mute all button causes the out-
put channels associated with the post-fader
surround and stereo monitor outputs to
mute. The 4-digit display indicates the mute
condition by showing four dashes (
– – – –
).
The mute all button is always set to “latch”
the function on and off. The LED associated
with the mute all button will light whenever
mute all is active. Note that if mute all is en-
abled via the remote mute all function, the
mute all LED will flash.
Dim
The dim function is provided for user con-
venience, allowing the post-fader surround
and stereo digital and analog monitor output
levels to be reduced by a fixed amount. The
Model 77’s configuration mode allows the
dim level to be selected from among four
choices: –10.0, –15.0, –20.0, or –25.0 dB.
Pressing the dim button will enable the func-
tion. The dim button is always set to “latch”
the function on and off. The 4-digit display,
when selected for output level mode, will
indicate the revised post-fader monitor out-
put level. If the requested “dimmed” output
level is equal to or less than –96.0 dB, the
monitor outputs will go into full mute and
the display will show four dashes (
– – – –
).
When dim is active the post-fader monitor
output level reduction will apply no matter
whether the level is being set by the rotary
level control or by the reference level button.
The LED associated with the dim button will
light whenever dim is active. If dim mode is
enabled via the remote dim function the dim
LED will flash.
It’s worth using a few sentences to dis-
cuss the auto dim off function. Whenever
dim is enabled due to the dim button be-
ing pressed, and the rotary level control is
active (reference level mode is not active),
changing the setting of the rotary level
control will automatically turn off dim. The
auto dim off function is a unique attempt
at protecting the aural health of users. No
longer will there be a heart-stopping blast of
audio when the dim button is pressed, sup-
posedly to enable dim, but actually turning
dim off because it was already enabled. It’s
hard to explain unless you’ve experienced
this in person—trust us, this situation can
and does happen!
Note that the auto dim off function is not
active whenever dim is enabled due to the
remote dim function being active. This al-
lows remote control equipment, such as a
talkback system, to reliably dim the monitor
outputs.
Rotary Level Control
The rotary level control is used to manually
adjust the post-fader surround and stereo
monitor output levels. The level control pro-
vides the ability to adjust the post-fader sur-
round and stereo digital and analog monitor
output levels over a 70-dB range. Technical-
ly the rotary level control is a 24-step-per-
revolution mechanical encoder. The amount
of level change in dB per step (“click”) will
depend on how quickly the control is turned.
When rotated slowly, each step represents
a 0.5-dB change in level. In this case, to
traverse the entire level range would require
rotating the control more than five full turns.
But the Model 77’s software detects when
