Blown channel on mixer, or just needs cleaning?

TranceAddict Forums (www.tranceaddict.com/forums)
- DJ Booth
-- Blown channel on mixer, or just needs cleaning?

Posted by WithoutAngles on Jan-29-2010 03:22:

Blown channel on mixer, or just needs cleaning?

Hey guys, I have an A&H Xone 32. My third channel stopped working a few months back and I haven't got the chance to figure out if it's a blown channel or it needs some cleaning.
The main reason is, I'm not sure how to go about cleaning it.
Can anyone tell me how that's done please and thanks.

Posted by dj_macgyver on Jan-29-2010 07:28:

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...

Posted by WithoutAngles on Jan-29-2010 07:37:

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.

Posted by tamtui on Jan-29-2010 13:34:

It might be your input

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

Posted by WithoutAngles on Feb-01-2010 05:00:

What do you mean it could just be the switch?

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

Posted by dj_macgyver on Feb-01-2010 11:31:

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

Posted by WithoutAngles on Feb-02-2010 03:30:

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.

Posted by DJ RANN on Feb-02-2010 23:38:

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).