Hi guys and gals. Im having an issue with this older subwoofer. For a few weeks it’s been sporadically popping or booming but would still play audio. Now it’s just low humming but with no sound. The volume and crossover knobs dont change the behavior. I took out the amp and all the caps look fine but these 2 resistors with burn marks beneath them look like a problem.
Here is a link to the closest schematic I could find but the resistors that have the burn marks are not listed there. Only the parallel ones on the other side of the board r22 and r23.
Any advice on how to proceed or what to test will be greatly appreciated.
Here is a link to the closest schematic I could find but the resistors that have the burn marks are not listed there. Only the parallel ones on the other side of the board r22 and r23.
Any advice on how to proceed or what to test will be greatly appreciated.