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Onkyo SKW-780 No sound

I have an Onkyo SKW-780 powered subwoofer. When it is pulled in, the blue led turns on saying the sub is in standby/ready to play. BUT, when the input cable is slightly inserted and removed, the normal ruffling sound from speakers is NON-extant. I have checked for a blown resister, but I cannot find one. I have tested the receiver with a secondary sub; Full audio. Anyone have any thoughts?

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: loud humming buzzing sound coming from subwoofer

make sure you have the speaker connection right if you do then it is a ground problem try plugging it in a different outlet

Posted on Dec 16, 2008

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Grubhead
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SOURCE: No sound coming out of my Onkyo SKW-200 subwoofer

A subwoofer is just really a mono amp for the signal. As with all amps if you touch the audio section/parts with a small screwdriver, you should hear a buzz from the speaker. (Follow the audio wires to be certain you are on the audio section). This can be used for testing the amp section. If you get no buzz or noise (anywhere) at all then it's power supply could be playing up. If you have a multimeter you can test it looking to see if it is getting power. Allways suspect any part that is on a heatsink. Before removing any suspect you can put the part numbers into Google to see if you can get them and it will give you a clue to cost.
PS don't short any parts when you touch with a screwdriver, and don't put it on the power parts.

Posted on Feb 02, 2010

  • 1 Answer

SOURCE: onkyo skw 150 powered subwoofer output code

whatisthe codewriten behindtheoutput of the onkyo subwoofer skw 150my ou6666088.jpgt put is bad in sucha way that ican not retrieve the the code

Posted on Feb 12, 2010

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sub woofers are very powerful bass , with incredible sounding technology. your problem might be with the woofer wall around the circle. open the box and take the woofer out.Check if there is any tare over the corners of the cloth. sometimes there might be a crazy noise because of a little opening in the cloth caused by small tare.. if so better change it with a new 1 and make sure that the new cloth has guaranty
damaged sub woofer eg. images?q=tbn:and9gcqv8lxhmuosnjkfywvef7uujnntmudkhhpl-pghy0i7xushrda- torn cloth- images?q=tbn:and9gctcogf_osbsmo3vmcu1vjnpozksylq4nojwpbojuo3w28zvb3honw
Thanks for rating good luck

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Onkyo skw 150 powered subwoofer output code


whatisthe codewriten behindtheoutput of the onkyo subwoofer skw 150my ou6666088.jpgt put is bad in sucha way that ican not retrieve the the code

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My onkyo subwoofer does not turn on the green ligth is not on, what could it be? is a swk-200


My Onkyo S/W did the same thing untill I unplugged it from the surge protector that all the other A/V devices are plugged into. I plugged the sub into it's very own wall recepticle with it's very own new surge protector. Maybe cleaner power is the answer.

Feb 12, 2010 | Onkyo SKW-200 Subwoofer

1 Answer

No sound coming out of my Onkyo SKW-200 subwoofer


A subwoofer is just really a mono amp for the signal. As with all amps if you touch the audio section/parts with a small screwdriver, you should hear a buzz from the speaker. (Follow the audio wires to be certain you are on the audio section). This can be used for testing the amp section. If you get no buzz or noise (anywhere) at all then it's power supply could be playing up. If you have a multimeter you can test it looking to see if it is getting power. Allways suspect any part that is on a heatsink. Before removing any suspect you can put the part numbers into Google to see if you can get them and it will give you a clue to cost.
PS don't short any parts when you touch with a screwdriver, and don't put it on the power parts.

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