Question about KLH ASW10-120 Subwoofer

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Speaker light in the back turns on(green) but no sound

When I plug in my sub woofer there is no sound coming out what so ever. There is a positive green light when I turn it on but there is no sound. Can anyone help? Please!!!

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Well, I will try and help. If there was a problem with any of the innards, ie your amp. It's most likely that the red light would come on ar some horrible sound would be emitted from the woofer. reguardless if there was any input. But let's troubleshoot this anyways.

If you are using the low level input (RCA cable) try hooking it up to something else, if you can. This will determin if it is at all the sub or if it's your amp. Then try using the high input. This requires the speaker terminals in the back. If it works, then we know there is something wrong in the path of low level inputs. If it does not, then we know it has to do with either the connection terminal or something further inside.
You can open your amp and check the solder at all the pin contacts in and around the inputs. If they appear to look stable and sound (no breakage or cracks) start looking at the circuit boards for tall tale signs of anything burnt. If you know haw to use a multi-meter, I would suggest using it and start at one end and check everything. Even though they may not look damaged, a resistor can become bad. If the Capasitors are bad, there will most likely be some spillage coming from it. Becareful and unless you have done repair work before. Don't attempt to replace it. If you put it in wrong and get a reverse charge, it could/will explode.
Aside from that, I don't know what else to tell you. Hope it helps.

Posted on Mar 21, 2009

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