Big time overkill for sure if I can make it work.
Seems to have a short on the 18V DC power barrel jack and all apart now so some pics of its guts later.
But not a tant in sight !
Time for some Gurgling to see what problems these things give.
The analog side in those is pretty simple; you have a PSU that does +/- 17ish volts and a +48V one, with the same reference. The dual of course to run audio, and the +48 to phantom supply. The inputs usually are first a pair of discretes and then its opamp time for buffers and filters. Most of the time pretty simple, but it's the multiplication of things that make them a challenge.
The digital side though. Much more convoluted. My guess is that if you can sort the power supply part out it'll either work (mostly) or be a
total loss.
I've got a much larger Soundcraft, a 200 Delta 24 input modular job, in my sights. Flight cased, with 2 PSUs, and a small 8 input one as spares unit. Proper enheavyment.