Analog board on my x1800 broke, but the digital INs do not hit the faders. Can they?

While I’m looking for a service center to replace my analog board, which broke after only owning my setup for 18 months, I would really like to be able to keep gigging.

The digital INs still work on my x1800, but they do not feed any channel, they just go straight to the master, is there a way to use digital INs in the same way I would use the analog ins, where they get fed to actual channels and faders?

Also if anyone knows of a service center that can replace the analog board on my x1800 please lemme know.