Lectrosonics DM84 - Manual (Page 15)

DM84 Installation Guide
Rio Rancho, NM 15
The DM84 can be configured in the installation or a
configuration file can be created off line in advance.
The minimum required setup to pass audio includes:
Inputs, Matrix and Outputs. Input and output filters,
compressors and delays are used to tailor the system
for specific audio situations. These parameters are set
up through the Control Panel GUI.
Outputs Matrix Inputs
Initial Setup Hints
1) The GUI interface is quite intuitive. As a recom-
mended first step, we suggest you select Labels
from the Menu Bar and type in all the input and
output labels. This will simplify further setup steps
because you will be able to easily keep track of
which input or output you are adjusting.
2) The right click is powerful in this interface. You can
activate quick access to a number of setup func-
tions (for example - right click in any input box
in the INPUTS tab ). It also allows some powerful
cut and paste capabilities - especially in the matrix
setup and the filter (both input and output).
3) Store startup settings in a startup default preset.
(See Storing and Recalling Presets in the online
HELP application.)
4) Presets will take about 3 seconds to switch due to
the many parameters in the unit - audio will switch
off temporarily during a preset switch to avoid feed-
back. If you need quicker response with no interrup-
tion to the audio, use macros instead - try using the
macro recorder for making any changes. The only
changes that cannot be made in a macro are filter
adjustments. such as EQ.
5) Store presets after changes are made and not be-
fore they are made.
6) Help is always available by clicking Help on the
Main Menu Bar. This Help is a comprehensive
resource and includes the latest revisions to the
software and firmware.
IMPORTANT: Any changes made during setup
must be saved in the unit via the preset menu.
For direct support from the factory, call 1-800-821-1121
Ask for anyone in the SALES department. They will be
able to answer your setup and/or technical questions or
will get the correct person who can help on the phone.
Front Panel Gain Controls
The gain of input and output audio channels is adjust-
able from the front panel of the DM84. This feature is
useful for system setup and adjustment, and may be left
enabled to allow users to “touch up” gains as needed
during operation.
Gain can be increased or decreased within a range which
is centered around 0 dB (unity) gain. The minimum gain
position has a special meaning - the channel will be turned
“off” when the control is rotated to the fully counter-clock-
wise position. The range of adjustment for each channel
is individually programmable using the Control Panel GUI
(in Device Setup Menu) or LecNet2 serial commands.
Changes made to the gain range settings take ef-
fect immediately and are global in scope - the same
settings are in effect no matter what memory “pre-
set” is loaded. The default range is 30 dB (+/- 15 dB).
Any or all of the front panel gain controls may be
“locked out” to prevent unauthorized changes to the
system. This is also done using the Control Panel GUI
(in Device Setup Menu) or LecNet2 serial commands.
Changes made to the gain control lock settings take
effect immediately and are global in scope - the
same settings are in effect no matter what memory
“preset” is loaded.
NOTE: When the Front Panel Mute feature is
enabled, the minimum gain position has a special
meaning. The channel will be muted and the
associated activity indicator will blink RED to
warn the user that no audio is being passed. This
feature can be controlled using the supplied GUI
control panel or the serial command “fpmten.”
Front Panel Input/Output Activity Indicators
These indicators reflect activity on input and output
audio channels. Useful for setup and troubleshooting,
these tri-color LEDs are interpreted as follows:
1) Input channels
DARK - channel is inactive
GREEN - audio present (level greater than -35 dBu)
ORANGE - input compressor is active
RED - input is in clipping (overdriven)
BLINKING RED - input has been turned off using
front panel gain control
2) Output channels
DARK - channel is inactive
GREEN - audio present (level greater than -35 dBu)
ORANGE - output compressor is active
RED - output is in limiting
BLINKING RED - output has been turned off using
front panel gain control