I have an SWR Bass amplifier LA series 12. It recently stopped working and just makes a loud hum when I turn it on. After inspecting I noticed the speaker is being pushed out which (correct me if I am wrong) indicates DC voltage passing were it shouldn't’t. I inspected the power amp (power supply) and found a brown stain around a 22 microfarad capacitor. If this is bad it would pass the DC voltage when it shouldn't... correct? SWR was of no help to me, they even emailed the wrong schematics. Thanks for your answers in advance
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