Digital Audio Labs Livemix AD-24 Analog Input Unit - Manual (Page 11)

LIVEMIX AD-24 8
TROUBLESHOOTING
MY AD-24 IS NOT TURNING ON, AND I DO NOT SEE THE POWER LIGHT ILLUMINATING.
Check to make sure that you have the AD-24’s external power supply connected to a working
power outlet.
I DO NOT SEE THE LIVEMIX DATA LIGHT ILLUMINATING, ON THE FRONT PANEL.
If the Livemix Data light is not illuminating, there is a problem with the power to the AD-24.
Check to make sure that the power supply is connected to the AD-24 and that all the cables are
secure. Also check to ensure that the power supply is plugged into an appropriate power source
and that the power cable from the source to the power supply transformer is securely attached.
THE SIGNAL LEVELS COMING IN TO THE AD-24 ARE WAY TOO LOUD/WAY TOO SOFT.
• Adjust the +4/10 level buttons on the front panel of the AD-24.
• If feeding the AD-24 from a consumer-level, -10dBV signal, set the level switches for -10
• If feeding the AD-24 a professional-level, +4dBu signal, set the level switches for +4
If the above are all correct, check the settings on your console or interface that is feeding the
AD-24. Some mixers provide the ability to adjust the output gain on direct outs, or in some cases
the direct outs are “post-fader”, meaning that adjusting the fader also changes your direct outs.
Consult the manual for your particular mixer to best understand the signal path for each channel.
I HAVE SET THE +4/-10 SWITCHES TO THE CORRECT SETTING, BUT THE LEVELS ON SOME
INPUT CHANNELS ARE STILL A LITTLE TOO SOFT/LOUD. HOW CAN I FURTHER FINE TUNE
THE LEVELS COMING INTO THE AD-24?
The AD-24 does not offer individual input gain control for each channel; if you want to fine tune
the signals further, you will need to adjust the strength of the audio signal directly from its source.
In most cases the source will be an analog mixing console that is also being used to provide the
live sound mix in the venue.
In this case, you should be able to find a setting for each mixer channel’s gain knob, that works
well both for the mixing console itself, as well as the signals being sent from the consoles direct
outputs, to the inputs of the AD-24.
EVERY TIME I SET UP OUR EQUIPMENT AT AN EVENT, IT TAKES A LONG TIME TO
CONNECT 24 SEPARATE ¼” CABLES, FROM THE DIRECT OUTPUTS OF THE MIXING
CONSOLE, TO THE 24 ¼” INPUTS OF THE AD-24. IS THERE AN EASIER WAY?
The AD-24 also offers three separate 25-channel DB-25 connectors on its rear panel, each
accepting 8 channels through a single multi-pin connector. By using cabling that terminates on
the AD-24 side using DB-25 connectors instead of ¼”, you can feed all 24 inputs using only three
connections, instead of 24 separate ones.