Amek big mixbus problem

Graham Langley founded Amek in 1973 with Nick Franks. Since then, AMEK and TAC recording consoles have been the choice of demanding audio professionals for over 25 years.

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Amek big mixbus problem

Postby dhtboot » Sun Mar 20, 2016 3:43 pm

Hello,

I'm having a problem with the master section of my Amek Big 28. If the source volume is low my right mixbus suddenly goes dead. If i push the volume up it pops back on and works fine for a while.

If i use the AFL the right channel works fine.

I've tried replacing the 2142 chips, replacing caps, nothing worked.

What could be the source of this problem?

Thank you in advance.

Dennis Boot
The Netherlands
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Re: Amek big mixbus problem

Postby jensenmann » Mon Mar 21, 2016 5:38 am

Sounds like a contact problem. Some quick ideas: Try to reseat all chips, replace the master insert jacks, resolder the volume pot.
Jens
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