Hello I have an X9 DJ mixer that is having some troubles. I run an external DSP RTA/EQ that i run via the effects send and return loop. Unfortunately I recently did some "rewiring" of my setup and plugged the return from the EQ into the footswitch jack sockets. As you can imagine, the mixer wasn't too impressed with this and flashed various lights on and off. I connected it up properly and now when the mixer turns on and does the self test, it hangs afterwards and displays ERR3 or sometimes ERR1 - if i turn it off and on again a number of times I can get the thing to work however it has become crackly and poor sound quality. I really like this mixer and didn't want to consign it to the bin. I've looked for a replacement online (ebay etc...) and cannot find one. Local repair shops aren't much use neither (UK Yorkshire). Does anyone know the likely damage caused and how it can bd fixed or is it beyond repair?