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caskade
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There's a ringing....

I have a soundesign model 5991 stereo reciever. When I turn it on, there is a particularly annoying ringing sound that does not get "drowned out" with the volume.

When I plug in headphones, there is still a ringing in the headphones, so I am less inclined to believe that it is the speakers.

thank you for all of your help!!

Jan Vigne
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Re: There's a ringing....

Help with what? It sounds like the receiver is in need of service.

caskade
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Re: There's a ringing....

wow, I'm stupid... I mean help stop the ringing.

You mentioned the reciever, but unless I'm mistaken, a reciever is used for the radio, which is a function of the system that I am not using (I have a CD player connected to it).

Outside of that, the ringing still occurs even when my speakers are not plugged in (headphones), and even when there is nothing else plugged in, like my cd player.

again, thank you for your time.

Jan Vigne
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Re: There's a ringing....

The tuner section of your receiver (?) is used for radio reception. A "receiver" is a term which describes a tuner, pre amplifier and power amplifier packaged together on one chassis. I assume you own a receiver but do not use the tuner. And, still, it sounds as if it is in need of repair. Are you asking one of us to tell you how to do the repair yourself?

caskade
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Re: There's a ringing....

That would be cool. This is an older system, and any help would be appreciated.

Wow. Did I actually pose a question about what a receiver is? Good gosh, I've gotta get more sleep!

59mga
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Re: There's a ringing....

Is the ringing in both channels?

To isolate the problem disconnect all external components (cdp, tape deck, speakers, etc.). Plug in the headphones and listen for the ringing. Switch to the various input positions to determine if the ringing occurs in all input positions or only certain ones. If you get the ringing in all or only certain input positions the problem is the receiver.

If you don't get the ringing in the headphones connect your speakers. If you don't hear the ringing through the speakers the problem is, obviously, not the receiver. Then start adding other equipment one piece at a time to see when the problem comes back.

I have seen devices that develop a feedback problem in the preamp or output stage causing a "ringing" sound but it is usually only in one channel. Verify whether it is in one or both channels.

Let me know what happens.

caskade
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Re: There's a ringing....

nah, I plugged in only my headphones, and then only my speakers, and the problem persists.

59mga
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Re: There's a ringing....

Seems as though a trip to the repair shop is due. Keep us posted.

caskade
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Re: There's a ringing....

I was kinda wondering if anybody knew what the problem was by experience, or knowledge of this situation.... mainly looking for advice.

Jan Vigne
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Re: There's a ringing....

Seems like the advice is get the unit repaired. If that's not what you wish to hear, the advice then would be to get the unit replaced. Those really are the only two options for you right now. Expecting us to tell you how to repair this unit over the forum is a bit beyond the ability of anyone here. Repairing audio gear is something you must understand and you must have the particulars of a shematic and knowledge of the unit before you. It requires test equipment that we cannot employ over a forum. It is not a plug tab "A" into slot "B" type of affair. Had we told you to replace R13 would you know what that meant? If you, yourself, do not know how to troubleshoot the problem, we certainly cannot be expected to perform that task over a forum. This may sound harsh but, please, understand what you are expecting us to do.

At this point, if you want the unit repaired, you must take it to a repair facility. If you don't want it repaired and would rather buy a new receiver, you should proceed with that task. We cannot repair this unit for you and it would be foolhardy for us to suggest to someone unskilled in electronics they should place their hands inside a component.

Windzilla
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Re: There's a ringing....

if you do know what R13 is, and feel like where telling you to stick it in your C1, sorry, were not (even if you don't know what those are). Jan is right that this forum can only take you so far.

the real technical geeks run over at www.DIYaudio.com

check them out, they definately can get to the nitty gritty on your problem, but it will require some basic electronics and circut board type knowledge on your part.

good luck! Perhaps if you posted where your from (general area) someone in these forums could direct you to a reputable repair shop they know of.

cheers!

caskade
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Re: There's a ringing....

thanks guys! That is all I needed to know!

59mga
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Re: There's a ringing....

As I stated in my previous post your problem could be a feedback in the pre-amp or output circuits but it is rare to have the same problem in both channels at the same time. I have repaired equipment with "ringing" in both channels but the problem was always a ground loop - ground being common to both channels.

Since the "ringing" occurs regardless of the input selected it is definately an output rather than an input problem.

It's time to repair or replace...as another poster stated. Good luck.

cyclebrain
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Re: There's a ringing....

Bottom line is that it needs service.
But the analitical side of me is curious.
What is your definition of ringing?
Is it a steady tone?
High pitched or a lower frequency hum?
Does the volume of the ringing change with the volume control or does it always stay the same?
Varies, is in the preamp portion before the volume control.
Fixed, is in the power amp portion after the volume control.
Since it is in all input selections it must be after the input selection stage.
The one thing in common with both channels is the power supply. But usually any power supply noise would be 60 or 120Hz hum.

Jan Vigne
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Re: There's a ringing....

More than likely "oscillating" would be appropriate.

cyclebrain
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Re: There's a ringing....


Quote:
More than likely "oscillating" would be appropriate.

Making assumptions often takes one down the wrong path.
Maybe it really is a ringing.
You're probably right though.

caskade
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Re: There's a ringing....

To answer your questions, cyclebrain

My definition of "ringing" in this situation is more like the high-pitched sound you get in your ear after you've stood too close to a large, loud speaker, or when you've had a very high volume set on your headphones for too long.

Is it a steady tone? yes

High pitched or a lower frequency hum? high pitched.

The volume of the ringing goes up with the volume of the reciever.

While I personally do not know elctrical or technical know-how, I have friends who do possess such knowledge.

thanks for all your help!

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