17
phantom power on/ off
screenshot 6
Press the TALKBACK switch again to access the talkback switch latch setting. Rotating the encoder clockwise turn
on latching mode; rotating the encoder counter-clockwise turns off latch mode (momentary)
Press the TALKBACK switch again to access the talkback switch latch setting. Rotating the encoder clockwise turn
on latching mode; rotating the encoder counter-clockwise turns off latch mode (momentary)
When you’re done, press the CAL switch, which will exit CAL mode.
Activating the talkback function can be done by pressing the TALKBACK switch located on the front panel or
remotely by closing the contacts of an external switch connected to the TB IN jack. The TALKBACK switch on the
frontpanel operates in either a momentary fashion or latching swith mode, which can be changed in CAL mode.
Releasing (or unlatching) the TALKBACK switch ends talkback communications. The talkback signal is summed
with the stereo signal that is fed out the CUE OUT connectors. When TALKBACK is engaged, the control room
outputs are automatically dimmed and the source feeding the CUE output is automatically dimmed by the pre-
set amount set in CAL mode (discussed later).
The lcd WindoW
The LCD window (as highlighted throughout this manuaul) is located in the upper right-hand corner of the re-
mote unit and is used to display various system messages and text describing the current operating mode of the
m904. It has been designed to provide you with a clear display of vital system information in dimly lit environ-
ments and its off-axis viewing angle is superb.
Typical LCD window showing the digital input selected and DAC status information
input source selected
word clock source
s-Lock status
sample rate
advanced featureS: acceSSIng the cal modeS
The m904 includes a comprehensive set of calibration tools that allow you to tweak the operating parameters of
your system. In normal day to day operation, you may not have a need to use the CAL modes much or you might
regularly need to access a number of them for job specific tasks. In either case, these flexible tools provide an
easy way for you to customize the settings of your m904. The following features are available in CAL mode:
Input source level offsets
•
Global speaker system output level offsets
•
Individual L,R speaker output level offsets for each speaker system
•
Cue output levels and L, R channel offsets
•
Stereo speaker #3 / CUE output mode
•
Speaker 3 global and individual channel level offsets
•
Fixed DAC output levels
•
Headphone amplifier GAIN range settings
•
Talkback mic preamp gain levels
•
Talkback 48v on/off state
•
Talkback switch latch or momentary
•
Dim levels
•
ADAT channel pair source select
•
