is it completely "dead" as in "no sound will ever come from it" or is it just making crackling / scratching noises (occasionally) when you're fading? in the first case cleaning is unlikely to fix anything, because that would sound more like a blown preamp / eq unit or whatever electronics is located on that channel...

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No sound whatsoever, the levels don't even go up.
I guess this is what happens when you buy a used mixer.
Luckily I only need 2 channels for now.

Try both inputs on the channl. It could just be the switch.

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What do you mean it could just be the switch?

I've tried both my CDJ's in that input and neither one works.

what he means is that channels on dj mixers usually have two inputs that can be switched, like line/phone or cd/phono or line/cd. just try the other one

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Ah no, that's not the problem, it was working fine one day and then just stopped another day.
I'm just assuming it's a blown channel.

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quote:

Originally posted by WithoutAngles Ah no, that's not the problem, it was working fine one day and then just stopped another day. I'm just assuming it's a blown channel.

There's a number of things it could be but I'm betting it's a dry joint (bad solder) somewhere as A&H components hardly ever just blow.

The most obvious place to look is the RCA inputs on that channel, as these commonly get knocked and are somewhat exposed. The next would be the channel switch as they have a lot of movement.

Givem them a test by running a meter over them and the nearest destination point (transmission/continuity test).