JBL Harman Kardon - Subwoofer (Sub140/230 no sound fixed) 

JBL Harman Kardon subwoofer 140/230 having no sound but the green light is on.
JBL Speaker No sound coming out from the speaker even tried changing input source.
JBL speaker Power is ok. No sound output.
First try to find the source of your problem. The easiest way would be to try your sub with a different audio source to see if the problem still occurs.
If still no sound it's more likely there's a problem with the receiver preamp and limiter circuit.
Follow these video guide if you encounter the same problem. .
I hope this will help you.
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