Help with speaker please

[tagnasty]

New to the scene don't navigate well yet. found a question from 1963mondoman dated 12-30 2016 regarding his Dolphin multimedia active stage speaker making a popping noise when power is turned on then lights come on then go off and unit has no power. I don't see any answers, However I have a Dolphin unit that is doing the exact same thing. I need troubleshooting advice

 

[Robert Ban]

You can pop it open and check for bad capacitors (just after disconnecting it from power outlet, power it up to discharge electricity).