Mixer can't "hear" keyboard. Can't seem to get sound from my keyboard to mixer!!

[radman2020]

I have a Privia 330 keyboard that seems to work well. I have a Behringer UB2442fx-Pro that also works well.

When I plug the keyboard into the Mixer with a 1/4 inch jack, I get no sound. If I plug the wire directly into a speaker it is fine. If I plug a guitar into the same input, it works fine... so I know it isn't a wire issue or an issue with either piece of equipment. I tried stereo and mono jacks. I even tried using the headphone out.. same issue.

If I plug into the aux return, it works fine... but that isn't where it should go.

This is driving me nuts. Does anyone have any idea? I am guessing there is some impedence mismatch... but this mixer should account for that I thought.

Please advise.

[DJ Davis]

Use the L/mono out of the keyboard which should be 1/4" into a passive DI box then xlr out of the DI into one of the channel preamps on the mixer. Thats how we usually hook up a keyboard.

[radman2020]

Thanks for the advice. I did try that without luck...

[TimmyP1955]

Are you sure that you are using the left out, not the left in? And that the volume control is up? If so, the unit may be defective.