Cromo 12 woofer problem

[Carlosraj]

Hi

I am working on this db Technologies Cromo 12 powered speaker. The tweeter works fine, but the woofer has no music output, it has a motor-boating sound. I have not dismantle the amp and check anything yet. I want to have an idea what probably can be the fault before I dismantle the circuit. Can it be the TDA8950. Can someone give me a clue. I cannot get the schematic.

Thanks

Carlos

 

[turk 182]

yes but with motorboating it's more likely supply filters.