Hi, I have a Mackie vlz3 mixer. Last night I turned everything on and it was all distorted. I did some trouble shooting. It is definitely the board. Can you help. Ted

http://www.mackie.com/pdf/archive/cr1604_om.pdf

Upon opening the mixer, you might find that the preamp boards are

similar , use the running board as a guide in troubleshooting .

On most are the XLR inputs with phantom supply.

Without more information of your speakers and amps we can't really help you. The Mackie board puts out line-level signals and that should drive any connected amp or powered speaker to the full capability. Make sure you are using BALANCED interconnect lines either XLR or TRS cables. Use of TS unbalanced cables costs you 6 DB and also noise pickup. Make sure ALL your gear, amps, speakers etc are powered from a SINGLE receptacle or power conditioning module. Normally you will use the AUX outputs of the mixer by way of TRS cables or balanced lines in a snake to power amplifiers onstage which then connect to the stage monitors. If you have powered monitors the returns of the aux to the stage go to the powered monitors. A heavy duty extension cord brings power back from thee stage power to the mixer.

You would connect at Aux outs of Mackie to inputs of Peavey

Check the power going to the main output with a multimeter. It may be a simple fuse or the output board may have come disconnected from the main board.

The power supply has a failure, Unless you are electronically adept this is NOT a DIY project.

Likely a filter capacitor or diode has shorted.

check your cables, on some Mackie boards press the switch to enable master out, make sure the mute or cancle button is not pressed. i have a 2404 vlzpro mixer it's simular to yours, if you have any problems, you can call Mackie direct if the issue is not solved, it could be a bad button, fuse or slide controle, or even a fuse

turn the gain down

Hi, check this link Sweet water.com you will be able to get it there.

Take care.

Here is the manual if you don't have one:http://www.mackie.com/pdf/archive/cr1604_om.pdf. There are solo buttons for each channel. There is also an auxiliary return solo button. There is also a solo to main button. These buttons are all inter related. Is your main output mute button in or out? Read the manual carefully as there are a myriad of combinations you can use. Have a look at the trouble shooting guide on page 21. If you can't find a solution try contacting Mackie. Let me know if this helps.