I have a YAMAHA GA 24/12 mixer and 10 aux (all) no

It sounds like you're experiencing a couple of issues with your Behringer Xenyx 1204FX mixer. Let's address each of these problems separately:

1. DSP Display Not Illuminating: The fact that the DSP display works when you press down and turn the knob suggests that the issue might be related to the display itself or its connection. Here are a few steps you can take to troubleshoot the problem:
   • Check Power Source: Ensure that the mixer is receiving proper power and is turned on. Sometimes display issues can be caused by power-related problems.
   • Connection: Make sure the ribbon cable or connector that connects the display to the circuit board is properly seated. A loose connection could be causing the display to not illuminate.
   • Faulty Display: If none of the above steps work, there might be a problem with the display itself. You may need to contact Behringer support or a professional technician to get the display repaired or replaced.
2. AUX 1 Send Not Working: If the AUX 1 send is not working as expected, there could be several reasons for this:
   • Routing Settings: Make sure that the AUX 1 send is properly routed to the desired destination. Check the routing options on the mixer to ensure that the signal is being sent to the correct output or destination.
   • Level Controls: Verify that the level controls for AUX 1 are set correctly. Make sure that the AUX 1 knob for the specific channel you're working with is turned up.
   • Effects/Processing: If you're trying to send a signal with effects applied, check if the effects are set up correctly. Sometimes, an incorrect effect or routing setting can affect the AUX send.
   • Cable and Connections: Ensure that the cables connecting the AUX 1 send to external devices (such as monitors or effects units) are functioning properly and securely connected.
   • AUX Master Level: Confirm that the AUX 1 master level (usually located on the main output section of the mixer) is turned up to an appropriate level.

If you've gone through these troubleshooting steps and the issues still persist, it might be a good idea to consult the user manual for your Behringer Xenyx 1204FX mixer for further guidance. If the problems continue, you may need to reach out to Behringer support or consider seeking assistance from a professional audio technician or repair service.

You'll need to connect both your PC and the Mic to the mixer, you'll need phantom power switched on at the mixer for the mic to work, you then take the two track out to the Aux input on the receiver.

What makes you say it works fine if you are getting no output? Have you just got it turned down?

That's basically normal actually...however it depends on which aux send you're using. If you use aux 1 for the effects, you can use the pre/post switch on the master aux 1 send to switch it to pst fader....now your mute switch should kill the effects as well. Aux 2 is good to use for monitors where you don't need to return them to the mixer.

Make sure that you have enable the main monitor volume at the end of the mixer. They are labeled AUX1 and AUX2 as well located under the last channel of the mixer. If those are on 0 your monitors won't work

I answered another post of this earlier. The AUX3 is strictly POST FADER... you MUST turn the channel sliding fader up to send signal to AUX 3. Also the AUX3 channel gain KNOB must be turned up. Also the AUX master gain KNOB must be turned up. Make sure your cablles are balanced TRS cables from the mixer to the powered speakers.

You are NOT trying to drive speakers from the aux outputs are you? These are LINE outputs that should be using TRS balanced lines to either powered speakers or amplifiers. Often these are used for monitors. The monitoors MUST be powered versions or use external amplifier if the speakers are passive..

there is a main output, conect it to the aux in line or to the microphone line.good musics

Use four (4) TRS cables. Connect from the
AUX "send" (left and right) to the input of the effects unit with two of the cables. Use the other two cables to connect from teh effects out jacks to the AUX "returns" left and right.

More important than your keyboard for this question is the mixer you are using.

Put the metronome on a channel and only pot it up in an Aux send. Set up the mix for your phones using that same aux send. Use the main outs for PA.

That would be one way to do it. The idea is, you want to set up a mix for you, and a separate mix for everyone else. Mixers are capable of having several different mixes sent on their various outputs, so pick one to use for your headphones, and use a different set of outputs for the other mix.

A mixer does exactly that. It mixes. If you think of a graph, the X side would be your inputs, the Y side is your outputs. You can mix different versions of X at each Y.