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Amp powers on, but no sound is produced

My receiver powers on, all displays are working properly, but no sound is produced. I have tried connecting several different aux inputs such as the CD, video 1, 2 and 3, and the tape input. None produced sounds. I opened the casing to check for loose connections and broken fuses, everything is is connected with no blown fuses. Thank you for your help. -Addison

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Re: Amp powers on, but no sound is produced

A failed volume control potentiometer? it's possible.

Posted on Jun 04, 2007

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Try connecting different sources to different inputs or fm source if nathing produces sound I would recommend to have it check by a tecnitian

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sounds like amp has burned out, disassemble and check for blown fuses.
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

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My subwoofer output is not working properly. I have a sunfire signature that worked all the time. Now the power on the Sunfire will not come. Research says no signal from receiver. I swithed the...

You can prove the sub pre-output works by running an RCA cable from it to the input of a tape deck, TV or any other device that accepts Line In and will either display it or play it. Test it on VERY LOW volume at the receiving device.

Different sub pre-out cable?

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You don't say if all speakers are silent or just the ones to the unspecified NAD power amp. Do ANY speakers work regardless of which device powers them? Could the NAD be the problem?

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Onkyo tx-sr601 bi wire with zone 2

The idea behind bi-wiring speakers is to get the highest quality of sound by getting the sound from two separate sources doing separate jobs. Lower frequencies are harder for an amplifier to produce than higher frequencies. So it is common to give these frequencies to two different amplifiers so each can produce the highest quality of sound. By removing the low end from the top end amplifier, it provides the top end amp more headroom thus reducing the chances of clipping. Clipping can easily be heard from the tweeters destoying not only the sound but your speakers as well. It is common practice in pro and car audio to use separate amps for subbass, low, mid and high; four amps working together to their corresponding drivers (more or less depending on the system and type of audio being produced).

In your case, getting the two different sources from basically the same amp (power supply), would not accomplish the full intent of bi-wiring; it would just make more wiring for the same end result. However still a good thought on your end. Onkyo receivers are great because of their beefy power supplies. Not very many other brands have such strong power supplies. Denon's are close but not equal.

Feb 14, 2010 | Onkyo TX-SR601 Receiver

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Overloads with volume a third od the way up,i have 2 12 inch cerwin vegas hooked to it

There is not much info in your question to properly answer it but here are a few things.

1) The VSX-D307 is a home receiver that is rated for no less than a 4 ohm load. If you have two 12" 4 ohm CV subs on the same channel and they are in parallel, that would create a 1.7 ohm load which would easily cause the problem.

2) If you have one on each channel connected along with speakers that are for you mids and highs, the way they are connected could be reducing the resistance load the amp will see which would easily cause the problem.

3) If you have one on each channel and no other speakers the problem would be simply that your speakers can use more power than the amp can produce. Thus you are able to raise the volume of the amp passed it's maximum output which would cause the amp to clip and the amp will go into overload protection.

4) Your receiver has an 8 ohm rated amp. Which means it can run at 4 ohms but the amp will produce more power at lower volumes on the knob setting and will max out at lower levels than if you were using a 8 ohm speakers.

In short, CV's can use a lot of power and your receiver, regardless of advertised power levels, cannot give the speakers what you are looking for in sound levels. Buy a larger dedicated amp for the CV's as the clipping from your Pioneer receiver is doing damage to your CV's. Your speaker's can hear the clipping before your ears can so damage will start to occur before your ears can hear the clipping.


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Yup, try opening the case and locating any fuses you can find. IMPORTANT! Make sure unit is unplugged from power source.

Fuses are somewhat like light bulbs in that they can an do burn out. Use ohm meter to test if fuse is good.

The fuses are usually just like automotive fuses so you can try to find an amperage printed or stamped on the fuse. Replace with same.


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