Mackie ProFX12 Owner's Manual - Page 26

Appendix A: Service Information

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ProFX8 and ProFX12 Appendix A: Service Information If you think your ProFX mixer 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 user forums. You may find the answer to the problem without having to send your mixer away. Troubleshooting Bad Channel Noise • Has the gain been set correctly? • Is the mute switch on? • Is the fader turned up? • Is the channel OL LED on? • Is the channel EQ set moderately? • Try unplugging any insert devices. • Try the same source signal in another channel, set up exactly like the suspect channel. • Turn the channel gain and faders down, one by one. If the sound disappears, it's either that channel or whatever is plugged into it, so unplug whatever that is. If the noise disappears, it's from your whatever. Power • Check that the power cord is firmly connected at both ends. Bad Output • Is the associated level fader (if any) turned up? • Are any OL LEDs on in the channels, main meters or internal FX? • If it's one of the main outs, try unplugging all the others. For example, if it's the 1⁄4" left main out, unplug the RCA and XLR left outputs. If the problem goes away, its not the mixer. • If it's a stereo pair, try switching them around. For example, if a left output is presumed dead, switch the left and right cords, at the mixer end. If the problem switches sides, it's not the mixer. Repair For warranty service, refer to the warranty information on page 32. 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, 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. 26 ProFX8 and ProFX12

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ProFX8 and ProFX12
ProFX8 and ProFX12
Appendix A: Service Information
If you think your ProFX mixer 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
user forums. You may find the answer to the problem
without having to send your mixer away.
Troubleshooting
Bad Channel
•
Has the gain been set correctly?
•
Is the mute switch on?
•
Is the fader turned up?
•
Is the channel OL LED on?
•
Is the channel EQ set moderately?
•
Try unplugging any insert devices.
•
Try the same source signal in another channel,
set up exactly like the suspect channel.
Bad Output
•
Is the associated level fader (if any) turned up?
•
Are any OL LEDs on in the channels, main
meters or internal FX?
•
If it’s one of the main outs, try unplugging all
the others. For example, if it’s the 1⁄4" left main
out, unplug the RCA and XLR left outputs. If
the problem goes away, its not the mixer.
•
If it’s a stereo pair, try switching them around.
For example, if a left output is presumed dead,
switch the left and right cords, at the mixer
end. If the problem switches sides, it’s not the
mixer.
Noise
•
Turn the channel gain and faders down,
one by one. If the sound disappears, it’s
either that channel or whatever is plugged
into it, so unplug whatever that is. If the
noise disappears, it’s from your whatever.
Power
•
Check that the power cord is firmly connected
at both ends.
Repair
For warranty service, refer to the warranty
information on page 32.
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, 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.