Appendix A: Service Information; Troubleshooting - Mackie Onyx Blackjack Owner's Manual

Appendix A: Service Information

If you think your interface has a problem, please
check out the following troubleshooting tips and do your
best to confirm the problem. Visit the Support section of
our website (www.mackie.com) where you will find lots
of useful information such as FAQs, documentation and
any updated PC drivers etc. You may find the answer to
the problem without having to send your interface away.

Troubleshooting

Bad Input
• Is the input gain set correctly?
• Is the input OL LED on?
• Try the same source signal in the other
input, set up exactly like the suspect
input.
• Is phantom power required for your
microphone?
Bad Output
• Unplug anything from the monitor out, just in
case one of your external pieces has a problem.
• Make sure that you are not overdriving your
amplifiers. Check the loudspeaker average load
impedance is not less than the minimum your
amplifier can handle. Check the speaker wiring.
Noise
• Turn the input gains down, one by one. If the
offending noise disappears, it's either that input
or whatever is plugged into it. If you unplug the
whatever-is-plugged-into-it and turn the input
back up and the noise is gone, it's from your
whatever.
Power
• The power LED should come on if the interface
is connected to a computer, and the computer
is powered on. Check to make sure that the
computer's power cord is securely plugged in.
Repair
For warranty service, refer to the warranty
information on page 19.
Non-warranty service for Mackie products is
available at a factory-authorized service center. To
locate your nearest service center, visit
www.mackie.com, click "Support" and select "Locate
a Service Center." Service for Mackie products living
outside the United States can be obtained through local
dealers or distributors.
If you do not have access to our website, you can call
our Tech Support department at 1-800-898-3211,
Monday-Friday during normal business hours, Pacific
Time, to explain the problem. Tech Support will tell you
where the nearest factory-authorized service center is
located in your area.
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