Allen Heath zed 1000 noise

[RobParticipant]

Hi I’m having problems Allen Heath zed 1000 so i had this unit so it’s been a nightmare with these mixers to be honest. My problem is once i bring the FX fader about 5 db you will start to hear kinda like a noise in speaker. I sent this mixer for repair the guy who worked on said in his shop hasn’t heard any noise what’s ever so I thought okay I hired electrician and i run wires straight from the breakers separate circuit all that fun stuff. The noise hasn’t gone away. Than i replace the FX board and that hasn’t solved anything.

[Mike CParticipant]

Does the noise change if you select different effects?

Do you get the noise if all the yellow channel FX send knobs are
turned down?

[RobParticipant]

when i select different effects the noise changes. It’s just annoying because i spend a lot of money and still hasn’t been able to trace this. not sure why is doing this crap is supposed to be quiet no noise what’s so ever

[RobParticipant]

No Noise if the FX channel is down once i raise it the fun begins

[Mike CParticipant]

I meant turning down the effect send knobs on each channel
while leaving the yellow fader up.

That would rule out any noise getting sent to the FX from
a channel input.

[RobParticipant]

Sir please the noise is there evenn if there is no mic connected to the mixer channel, it should be no noise what’s so ever.

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