Question about JVC TH-M505 System

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Sub woofer its on for 3 sec..

Hi, Im trying to turn on my home theatre but the subwoofer its on for a couple of seconds and it turn off automaticaly, the display it's on but the subwoofer its not. Coud you please tell me what to do.. Thanks. My address Sperez0416@rogers.com

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  • sv_will May 06, 2008

    the system turns on for a few seconds and turns off

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Your cooling fan is not engaging and coming on like its suppose to. One, the fan is probably burned out, which sucks because its low voltage and the only thing on the board that is low voltage. Two, there is a thermostat type component that tells the fan to start which HAS burned out and doesnt start the fan accordingly. If you look at the back fan and turn everything on you will see the fan either doesnt start or starts right as the relay trips turning the sound components off. If it starts at all your fans good.The thermostat component will need to be replace and I cant recommend a source. Just trying to explain the problem so you can look for the right repair. Hope it helps. I have one of these and have found this is the problem, but cant find the solution.

Posted on Dec 07, 2009

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My subwoofer for JVC TH-M505 system is on but there is no sound coming from it. All wires are plugged in.

Posted on Nov 30, 2009

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Posted on Jan 02, 2017

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How do convert my active sub to passive sub speakers


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Why does our subwoofer all of a sudden start to buzz when we turn on our stereo/home theatre system on?


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Not all sub-woofers are alike. Some can handle the really low lows, and some can not. Check your settings too. Over time the vibration of the woofer will start to undo the glue, nails, screws, and even burn through the tiny wires in the voice coil. Oh and make your china crawl across the table... Have you been watching a lot more action movies? Some of the older woofers can't handle the newer digital deep bass frequencies... You may have to reconfigure your setup.

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When my KEF home theatre subwoofer is maxing out on bass, it often makes a loud popping noise. Should I be making some adjustments to reverb, volume, or something else?


Hi,
Yes you should make adjustments.KEF makes very good products, however if you don't handle this you will have to replace or service it.
1 If the woofer is very close to you, relocate it further away. The reason being is that the lower the frequency the larger the wave form. The lowest waveforms will become louder.
2 Adjust the high frequency cut off to be at 80Hz. This should eliminate boom. Higher Sub frequency tend to muddy the sound.
3 The sub should have a subtle effect in music. So the relationship between it and the speakers it augments the sound of should be seamless.
4 If you are playing Rap or Reggie music and you like to play it loud. Add another sub into the system and locate it NEXT TO the KEF Sub. In this fashion the two subs will reinforce each other's energy. They will "couple" thus multiplying their energy considerably.
Hope this helps,
Best Regards,
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Now, this is just one suggestion, it may work, but then again, it may not.

These could also be connection problems or some internal trouble in the onkyo sub signal output section or in the subwoofer input section, but hopefuly, it's just a "turn on" or "signal level" setting in a menu.

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3rq8 (triarcuate)

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1 Answer

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"Sub-woofer output not working" problem, and notify you when a new solution is offered.
Press the setup key on the front of the receiver
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The operator manual can be downloaded on the web site--- free

http://www.retrevo.com/support/Kenwood-VR-507-Receivers-manual/id/480ag219/t/2/

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1 Answer

Installation Help


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