Behringer 1832FX mixer - losing left main output?

[chazpope]

Hi

I have had this mixer for 6 years and all the time if did not miss a beat.

Sadly it now kind of loses the left main signal (there is also no level shown on the meter), If I shake it a little it kind of comes back for a while. I put the effect on test signal and assigned to main and so I can see how the main meter level comes and goes with shaking (though in a sort of sneaky smooth way without any crackling being heard).

I can also see this same effect in the SUB mix - when I assign the test signal to go to SUB. This can be heard on headphones too and is valid for most inputs, it is as if the whole left bus collapses.

I opened it and stopped short of removing the main board, looks like a lot of switches to pull and I don't have a clue what to do after

Any ideas ?

regards

[Enzo]

First, any assign type push switches that could be involved, wiggle them and see if the signal tries to come back. Does it make a difference if you assign a signal to a sub first versus direct to L/R?


I also tend to suspect the sliders themselves a lot. I find the bottoms pushed out on them a lot - something fell on the top of the lever and pushed out the bottom. But they also just open. I'd put a signal into a channel and assign to L/R, then look for signal on the master slider for the dead side. COmpare to the working side slider next to it.

[chazpope]

duh - the b****rd stopped doing it and now works, can't induce the problem in any way.

I think I will have a go at removing the main board for a 'clean' - hope that doesn't make it worse It's always been that one of the seldom used sub mix sliders cuts out when pushed to the side. I think this is unrelated to my latest problem but it might be worth a closer look.