TROUBLE SHOOTING
PROBLEMS
SOLUTIONS
There doesn´t appear to be any signal at all arriving at the
back XLR.
Make sure the GAIN knob is not in the ´Off´ position.
There still doesn´t appear to be any signal at all arriving at
the back XLR.
Check to see if a jack cable has been left plugged into the
front panel D.I.
Even at the lowest position on the GAIN knob I still have
too much gain.
When this happens you should activate the PAD button.
This will reduce the input by 20 dB ahead of the input
transformer.
Condenser microphones don´t seem to work with DMA 73. Make sure the red +48 V button is pressed in to activate
the phantom power sent to the microphone.
There doesn´t seem to be any output at all from the unit.
Check to see if the OUTPUT knob is fully turned down as
this will attenuate the signal completely.
Sending a signal to the unit from a DAW overloads it
terrible.
It is necessary to press the LINE button when sending it a
line level source.
If not, it is expecting a Microphone signal with a very
different impedance.
I´d like to use my amp but have connected my guitar to
the DMA 73 to send to the FOH engineer.
Simply tap the signal from the THRU output jack. It is
identical to the signal received at the DMA 73 input.
Experiencing hum no matter the cable used.
Check the physical placement of the DMA 73.Make sure it
is not too close to other equipment that may cause the
problem.The huge toroidal transformer installed can be
suseptible to picking up hum.
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