Assuming that you've checked the fuse, and the lights come on...1) Can you hear any "hiss" from the speakers at all? 2) What have you tried to input into the device? (guitars, keyboards, mics, etc.)3) Have you reset all buttons to "basic" mode? Let me know, and we'll go from there...
Can't say for sure....there should be a bunch of screws in the back so you can gain access....is this a powered cabinet??...can you dis-connect the present speaker and horn and hook up another just to make a test?? Is the cabinet plastic?? There could be loose screws....Does the cabinet have a recess for a stand??If so, check the retaining screws in that as well....and don't forget to check the grill....
The first thing you have to do is replace the damaged parts and repair any damage to the circuit board. After that you will have to tackle the no audio problem if there is one...repairing the damage might solve everything...and it might not.....it is very hard to tell because I can't see the unit.
Good luck......Behringer does not release schematics....you will have to do it without them unfortunately.....unless you can find somebody who has them...Check for a forum on the net for Behringer equipment...you might be lucky to find something there.
Is the hum there with NO input cables connected? If not, you have bad cabling. Make sure you use only XLR to XLR mic cables and not the junky ones with a 1/4 inch plug that are for Karaoke machines. These devices usually use switching power supplies and do not have the power supply originating hum of older equipment. If the volume control adjusts the hum, then the hum originates previous to the control which is either in the preamps or the external inputs.
It is unlikely to find a compatible USB convertor for that digital recorder. If it has audio input you can probably use a similar cable to that for the IPOD described next. For the IPOD, get a 1/8 inch STEREO splitter cable that splits to 1/4 inch plugs or RCA plugs to connect to the PA system. Radio Shack will probably have a suitable one.
Open the speaker and look for loose connections. Carefully move cone with fingers. If there is noise when doing so...rubbing type noise, speaker needs reconing or replacing. If the crackling comes from teh tweeter section, then the tweeter may need replacing.
You will need an oscilloscope and a good grounding in electronic servicing to attempt a repair.
But, check the signal routing. Refer to the user manual.
It sounds like you're experiencing a couple of issues with your Behringer Xenyx 1204FX mixer. Let's address each of these problems separately:
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.
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.
Hello Geoff, try using an external processor and check that it works well, if so, the problem is that you have the Jack connectors of Effect sending and those of Return of Effects, dirty
Apply a couple of drops of oil, type WD40, to a Plug connector and insert and remove them repeatedly in each connector Jack for sending and returning effects
I hope you can solve the problem, comment the results
Greetings Franco Dosil
Hola Geoff, prueba usando un procesador externo y comprueba que funcione bien, si es asi, el problema es que tienes los conectores Jack de envio de Efecto y los de Retorno de Efectos, sucios
Aplicale en un conector Plug un par de gotas de aceite, tipo WD40 y entralos y sacalos repetidamente en cada conector Jack de envio y retorno de efectos
Espero puedas solucionar el problema, comenta los resultados
Saludos Franco Dosil
https://media.music-group.com/media/PLM/data/docs/P0A8M/PMP1680S_PMP980S_PMP960M_M_EN.pdfhttps://c3.zzounds.com/media/PMP1680S_P0A8M_OI_EN_ES_FR-df44b2314272dfc61a7cabe5bb88ecce.pdf
