Faulty Yamaha MGP24X

[bamuel815]

I got my hands on a free console from a pub I go to as it was faulty, it literally wouldn't come on properly, the computer wouldn't start up and all the lights would just flicker and I thought maybe I could fix it. I fixed some of the problems, however the stereo output still doesn't work and the panning doesn't seem to be working.
I can get sound through the monitor out and headphone out via the AUX sends and the rest of the console seems to be working.

The boards are pretty immaculate too so I would be really grateful if someone had some insight to this problem so I could fix it up fully.

Thanks in advance

[resistorman]

Might be helpful to know what you've fixed so far. At first glance it seems like power supply problems, but I'd de-oxit and reseat all internal interconnect cabling first off.

[bamuel815]

It was simple fixes. A couple of the ribbon cables were hanging out. And then the computer booted up and the lights stopped flickering. I have sprayed the desk and unplugged and plugged back in all the ribbon cables. But not removed any cards