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Repair mackie mixer

I have a a Mackie CFX12 Mixing desk, when I turn it on there is a buzzing noise almost like a fan noise coming from he unit, is this fan related or maybe something else and how easily can it fixed?

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  • 336 Answers

This board seems to have some bad electrolytic capacitors. The noise you hear is the lack of filtration that they provide. It should be gone through by a technican. If you want to look into this, I can help if you let me know, you may can spot these if you open it up. They look like little cans with an X on top. I'm sure it has many.

Posted on Dec 03, 2013

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Posted on Jan 02, 2017

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SOURCE: Mackie D8B Mixer freezes

Don't know your setup but have you checked out any possible Hum loops? Have you updated any firmware updates? Is your mains input clean (no spikes or very short drop outs of voltage)? Are you near any possible RFI, e.g. Taxi's or CBr's? The list goes on so check out the Mackie forum on the web for more. Good Luck...
Regards,
Frank.

Posted on Jun 30, 2009

young red
  • 3 Answers

SOURCE: bad transormer in my Mackie 1202 20 watt mixer

how u hook up a mixer

Posted on Jul 31, 2009

  • 5603 Answers

SOURCE: Connection of two sound boards

Refer to your EV user manual, page 23, part 2.

You run the outputs of the Mackie into the stereo "returns" on the EV.

Use TRS interconnect cables as these are balanced lines.

Posted on Jul 23, 2010

  • 5603 Answers

SOURCE: No sound

Your power amp should be connected to MAIN OUT left and right. NOT the MAIN "in".

The CD is connected correctely as you described. Make sure the CD has a line level output to match the input expected by the mixer.
Note:Walkman style CD players require a special cable to go between 1/8 inch stereo to dual RCA plugs.

You have to advance the MAIN fader.

You should be using TRS interconnect cables from the mixer to your amps OR using XLR cables.

Posted on Jul 24, 2010

  • 5603 Answers

SOURCE: I have a mackie cfx12 mixer. I just added an eq

Sorry, I have looked at the schematics and the TAPE IN jacks are mixed into the MAIN outs AFTER the insert jacks, so your subs will NOT receive signal via the insert from the TAPE IN jacks.
You could make a small passive mixer merging the TAPE/CD before going to the crossover. This would require some non-standard cabling.... The other option is to run the CD into a regular stereo channel rather than the TAPE IN jacks... then the CD will go through the insert/crossover and to the subs as you desire. The last option is to use the crossover at the MAIN outputs instead of as an insert... which would be the CONVENTIONAL way... use BALANCED cables wherever possible.

Posted on Jul 23, 2011

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No sound


Your power amp should be connected to MAIN OUT left and right. NOT the MAIN "in".

The CD is connected correctely as you described. Make sure the CD has a line level output to match the input expected by the mixer.
Note:Walkman style CD players require a special cable to go between 1/8 inch stereo to dual RCA plugs.

You have to advance the MAIN fader.

You should be using TRS interconnect cables from the mixer to your amps OR using XLR cables.

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Refer to your EV user manual, page 23, part 2.

You run the outputs of the Mackie into the stereo "returns" on the EV.

Use TRS interconnect cables as these are balanced lines.

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