So I pick up an Assault today, game plays works great no sound, I check the power supply , good voltages, check the jamma harness, good there. I get static on the speaker that is adjustable with the rehostat knob on the test panel, static feedback gets louder and softer..., no change in static from the volume pot on the board. Pull the board, reset the voice chip, check schematics, no visible issues on the boards audio section... The static would indicate the amplifier is working yes? Not sure what else is there...other than a component shotgun..uugh. Anyone have any experiece with these or know where to start....thanks in advance everyone...

