Soundcraft gb aux help! - Page 2 - diyAudio
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Old 9th May 2013, 10:22 PM   #11
Anton65 is offline Anton65  Ireland
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Join Date: May 2013
Location: Co.Cavan
Great tips chrispenycate, I won't get a chance until next week to sort this out. Thanks for taking the time. Much appreciated. Anton
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Old 21st June 2013, 05:23 PM   #12
Anton65 is offline Anton65  Ireland
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Join Date: May 2013
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Hi guys, so I ended up bringing desk to a tech and it's been there for 4 weeks now and I just got off phone with the guy and he says its fixed except for aux1 apparently there's a chip problem. He said that aux1 is out of action and he will need about 10 more hours on it and said he recommend that I just don't use it. Aux 2 is fixed but I'm a bit annoyed. Apparently this guy is one of the best around and he hasn't charged me much as he missed the deadline I needed it buy and also has been really poor about ringing me back etc. but I'm stuck without Aux 1! Anyone have any experience with this?
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Old 30th November 2014, 09:45 PM   #13
yekuku is offline yekuku  Europe
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Hi guys, it has been a while since my last visit here. Glad to see the forum still alive and kicking
Sorry to bring up this old thread, but I have the same console and exactly the same problem, aux 1 output is producing a crackling/popping noise and aux2 exhibits the same behavior but in lower volume. I guess that this a common issue for the gb2s.
I have reflowed all the joints from the output card but the problem persists.
Did anybody find a solution to this ?
I could not find any schematics for the GB2, so I am pretty much stuck.
Any help would be deeply appreciated , thanks
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Old 30th November 2014, 10:38 PM   #14
Anton65 is offline Anton65  Ireland
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Join Date: May 2013
Location: Co.Cavan
Hey, yeah this was a nightmare for me, but thankfully I got it fixed in the end. I brought mine to a local tech but he really didnt want to fix as it was a nightmare of a job for him as it just took hours to fix, and he fixed everything in the end as he gave me the desk back and it still had the same problem so he took the desk back and pretty much overhauled the whole thing for only 70 euro. I think most places would've charged a fortune to fix. I think the problem was that some damp may have gotten into desk, the last guy had it stored in his attic even though it was boxed and pretty much brand new. Unfortunately I'm not fully sure what the tech had to do exactly, but I think he had to change the ribbon cables. He gave out about the desk a lot as the parts weren't great and the company that bring the parts aren't great either. He said he didn't use the listed parts as the same problem would happen again. That's all I have sorry, as I said I'm not much of a tech, but desk is better than ever. Hope you get it sorted but you maybe be better of bringing it to someone, or sell.
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Old 1st December 2014, 12:00 AM   #15
yekuku is offline yekuku  Europe
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Join Date: Dec 2006
Thanks for the feedback
Some older Mackies exhibited ribbon failures with similar results , I wonder if that is the case here .
I have just found the schematics of GB8, I hope they are similar to GB2.
I ll keep you updated , thanks
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Old 1st December 2014, 05:38 PM   #16
yekuku is offline yekuku  Europe
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Join Date: Dec 2006
Unfortunately the gb8 schematics were not very helpful, as there are a lot of differences between the gb2 and the gb8.
Anyways, I have noticed that the talkback button for Aux1-4 produces similar type of noise when pressed, so it could be a suspect.
I am glad to see through hole pcbs for the channel strips, but the lead free soldering quality is questionable. The pcbs are double sided and the solder did not flow properly on both sides, so this could be a suspect too.
Any other ideas/suggestions would be deeply appreciated.

Last edited by yekuku; 1st December 2014 at 05:49 PM.
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