mackie srm450

The speaker worked before working on it. Initial problem was that the volume was cutting in and out when fiddling with the volume knob. okay, I started by also changing the filter caps as the old ones were bulging outwards and were ready to leak anytime soon. Nothing too complicated, for now...

Hello everyone, I'm troubleshooting a friend's speaker which no longer produces sound. Already checked/confirmed/ruled out: The speaker itself has been tested and works. There are no shorts (that I could spot with a DMM & thermal camera) on the board. Please see attached schematics for...