Mackie board broken channel

[ThompsonTech]

What model? Are you getting any signal on the meters or on the monitor/headphone outputs?

Mackies seem to have a reputation for ribbon cable problems but another common problem is mains inserts contacts that haven't been used, sometimes inserting and removing a connector in the inserts a few times clears up that problem.

This helped me in 2024 with an Allen & Heath Zed16FX that had lost its right output. It was just the insert jacks that needed a bit of fiddling. Thank you.