one of my reliable FLX consoles has started to show signs of old age and may need some TLC, I remember on the frog range the faders where connected electrically and the processor could get confusing signals when a fader had dirt in or was faulty. I assume this may be the same with FLX but I cant find the old posts regarding how to diagnose and fix.
My problem is fader 5 also has an affect on fader 19. (not the other way around, and all other faders seem fine), when I raise fader 5 it also shows fader 19 raise to about 40% max, this happens both when they are channel faders or sub-masters. I have a wing so was going to try plugging the wing in to see if the same happens but I think it may be the hardware showing its age, Can you suggest the best way of diagnosing and cleaning, I know not to use switch cleaner. if it needs a fader replacement I can do this myself but will need to know where to get the parts from.
Cheers