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DDA Q II OUTPUT ISSUE

AsciiRory

AsciiRory

New Member
Hello all. I have a beautiful DDA QII mixing console that has one issue. When listening to anything through the board the left channel tends to cut in and out sporadically. It happens quite often and doesn't seem to matter what input channel or source so I suspect an issue with tbe master module. Anyone have some experience with this sort of thing? Also I am wondering if I send just the master module to a repair shop can they adequately work on it? It is a big mixer 5ftx3ft and VERY HEAVY so I really do not want to send in the entire thing! BTW it has a repaired power supply and everything else seems to work.
Annoying of course as I cannot really work with it in this condition.
The good news is the boards are all discrete through-hole components and nicely marked on the pcb's.
 
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Could be that if there are plug in modules or plug connectors for all circuit boards that they could be loose, dirty, or both. Maybe even cold solder joints or solder cracks.
 
I found the problem. The left mix out xlr connector needs to be resoldered. When a cable is in it if I move the cable to the side the issue clears up. I made sure it wasnt the cable.
 
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