Hi. I have an otherwise mint condition Alesis QS6.2 that has developed a really annoying hiss / buzz on both main L/R outputs. The noise is so prominent that the board would be unusable except that I found that the noise isn’t present on the “headphone” output, so I’m temporarily using the headphone out to my mixer. However, I’d rather use the regular main outs… Any idea what is causing the loud hiss / buzz? Any idea how to repair?
Thanks in advance for any help you can provide.