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Yamaha EMX 2200 Powered Mixer

I have distoration on both channels at any volume. The unit has worked perfect ever since I got back 10 years. I know it would be a big job to change all the output transistors but if you can offer anothe place to look it would be good.
Peter Coombs
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Posted on Jan 02, 2017

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SOURCE: yamaha emx 5000

Your powered mixer does but the model number doesn't match any Yamaha models. Double-check and look for the manual at Yamaha's website. It probably the 300 or the 512.

Posted on Dec 28, 2008

  • 211 Answers

SOURCE: Peavey CS-800 PA power amp 1 channel is out

Hi Bill,

It's a log time ago that I repaired those amps., but I give it a shot.
There's a speakerprotection after the finals, what I remember it's a triac (SAC187, or something like that).
You will find it at a small pcb at the back of the amp. Normally it has three legs but the centre is cut away. If it's down you will measure 0 Ohm at the output, also with a switched off amp.

Thats all I can remember, it was about 25 years ago.

Maybe it helps,

Posted on Jan 30, 2009

  • 4234 Answers

SOURCE: No volume control with 2 faders on Mackie CR1604 mixer

If all other functions work for those channels, the most likely problem is the fader itself. These can fail and operate more like switches rather than faders. Without witnessing the behavior, I can not state that for sure. While these mixers are not the hardest to work on, they are time consuming. The faders can be purchased from Mackie directly. If you need to have this repaired, any shop that repairs audio gear should be able to erpair this for you. Where are you located?


Posted on Feb 12, 2009

  • 8 Answers

SOURCE: Connecting two powered mixers

Hi, If you have small electronics knowledge this might help you. First fine in each mixer the amplifiers line In if your mixer has two amplifiers then you have four line In. Disconnect this line from your mixer and build a circuit Line out multiflier. You can use op amp for this application this is a simple circuit. You made two input and four outputs. If you are interested i can send you a schematic diagram.

Posted on Aug 10, 2009

  • 1 Answer

SOURCE: no output to speakers mackie 808s power mixer

I can hardly even tell what you're talking about because you don't use any punctuation.

Posted on Dec 17, 2009

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Taking a quick scan of the manual for this unit, it appears what is pretty common to most powered mixers, hook up two matched speakers/loads to each chanel of the output.

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Link to Yamaha EMX 312 Owner's Manual:

Yamaha EMX Series Owners Manual


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The speaker connected to my Yamaha EMX 312 SC is not bringing out any sound when we use the microphones but the displays on the power mix shows there is activity.

Assuming that you have checked the speaker leads for broken connections and that you know the speakers themselves work okay (test with a different amp) and that you can hear sound on the headphone socket
  1. Check that you actually have the power amp switch in the right position for the outputs (monitor jacks or main neutrik/speakon sockets) that you are using (see page 25 of the manual)
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  3. Check the mute button is not in
  4. You have turned both the master volume controls up.
If none of the above solves the problem it is likely that the overload protection fuses on the amplifier output stage have blown and need replacing - take to a repairer
You can find the user's manual here

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Yamaha emx 5000

Your powered mixer does but the model number doesn't match any Yamaha models. Double-check and look for the manual at Yamaha's website. It probably the 300 or the 512.

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