Adam A77X schematics / wiring diagram, video of error inside

[Disco]

Hello everybody,

I am in desperate need for the Adam A77X schematics / wiring diagram.
Mine just broke and I want to fix them.

this is the error they are producing, maybe someone has an idea, already replaced a faulty condensator.
This is happening with just the power cord in and no signal going through them, if you put an audio signal through them it is audible but drops out everytime the plop of the membrane is happening.

 

[Disco]

Not condensator, I mean capacitor.

 

[Khron]

That looks like a meaningful amount of DC is ending up at the woofer

Do those have linear (class B) or switching (class D) amplifiers?