I'm having an issue with the front input. It happened when I plugged at sound check today and I ended up using the rear input. I'm on a fly date near Portland, Oregon and since I'm from Montreal, I thought that if it needs assistance, I'd rather send it from here. I was wondering if it was possible that a simple connector might have gotten loose or something inside? Any advices are more than welcome. I got some electronic background so if it's something simple I could have a look at it but I'd rather have it done professionally as I got a bunch of gigs lined up... Not too sure what to do here.