User Guide

Model 76D/77 User Guide Issue 13, December 2020
Studio Technologies, Inc. Page 43
for Surround
A or B, can be selected. The channel mute/
solo button, stereo to mono button, and 4-
digit display are used to display and select
the input delay. When the mute/solo button
is pressed and held the LED associated
with the stereo to mono button indicates
whether input delay A or input delay B is ac-
tive. The 4-digit display will show the active
delay time in milliseconds. While pressing
and holding the mute/solo button the stereo
to mono button can be pressed to change
the selected input delay. Refer to Figure 9
for details. The selected input delay will be
stored in nonvolatile memory so a power
down/power up cycle will not change the
selection.
Display and Display Mode
The Model 77’s 4-digit LED display shows
the post-fader surround and stereo monitor
output levels as either the amount of attenu-
ation or the sound pressure level (SPL).
During normal operation, press and hold the Mute/Solo button
to view and change the solo mode and input delay settings.

This LED displays the current setting
of the solo mode. LED not lit means
normal; LED lit means channel pop.
Press the button to change the mode.
This LED displays the current
setting of the input delay.
LED not lit means input delay A
is selected; LED lit means input
delay B is selected. Press the
button to change the setting.
The display shows the currently
selected input delay in milliseconds.
Both will indicate level in dB. What the dig-
its actually represent will depend upon how
the Model 77 has been configured.
Display in dB of Attenuation
If configured for the attenuation mode the
display will show the monitor output level
as an attenuation value in reference to
the maximum output. This is in the form
of 0.5-dB steps less than the maximum of
0.0 dB. So a display of –40.5 would indicate
that the surround or stereo monitor output
is set to be 40.5 dB below the maximum
level. As the rotary level control is moved
counterclockwise the output level will go
down and the indicated value will get more
negative.
Display in dB SPL
If the Model 77 is configured to display the
monitor output level in dB SPL, the 4-digit
display will always show the output level
Figure 9. Solo mode and input delay settings