Question about RCA RT2280 System

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Only humming sound from speakers, rca rt 2250

Only humming

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  • puppup52 Jun 19, 2009

    Why is there only humming

  • puppup52 Jun 19, 2009

    why is tere only humming going on

  • puppup52 Jun 29, 2009

    It hums in all settings

  • puppup52 Jun 29, 2009

    The humming is happening in all settings

  • Derek Williamson May 11, 2010

    Does it hum when it is switched over to the radio input?

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  • 40 Answers

If its humming no matter what on all inputs, that means the internal electronics are worn out or damaged. This can be from a number of different things and isnt worth trying to have it fixed do the fact it would cost more than just buying a new one.

Posted on Jun 29, 2009

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1 Answer

Kenwood cd-203 5 cd humming sound


Check your RCA cables to make sure that they are not dirty, tarnished or not completely plugged in. Also, try switching to different (working!) RCA cables to see if that fixes the noise problem. Good luck!

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Hello Jjwpod hi, to find where the trouble is, you need to place ear near speakers, you should hear a humming sound, adjust the volume up or down, the humming sound also goes up or down, this means your amplifier is working, no hum means trouble in amplifier.
summary:
No hum: trouble in amplifier, speaker connection.
Humming, but no audio: problem before amplification, most likely the Sound IF stage.

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If I understand this correctly: with NO input or cable attached it hums; with an RCA cable attached it works. (What does 'some' mean in this regard?)

You say that connecting the RCA cable improves its sound. That tells me you're supplying a ground through the RCA cable for stray voltage in the sub.

It seems there may be a basic power issue if it hums with no input. Sometimes a given power source in a home may be wired differently than others or may insufficient grounding, which can result in hum. Try reversing the sub's power plug or move it somewhere else.

Since the sub contains its own electronics it is also susceptible to strong external magnetic fields. Keep it and any signal cables leading to it some distance away from other electrical devices like TV's.

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1 Answer

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The humming is probably caused by failing filter capacitors, these are usually quite large, also look for cold solder joints around parts the heat and cool continuously. Please post an update to further troubleshooting, if this doesn't solve the trouble.

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yes you need a filter on you amp to stop the noise through your speakers any car audio shop should be able to solve your problem

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1 Answer

Humming sound to speakers from amplifier


Hello,

It sounds like you may have a ground loop issue. I'd start by checking all the power and ground connections. Then disconnect the RCA wires from the amplifier. If the hum goes away then you should try grounding the stereo to a better grounding point, the factory grounds are usually not very good at all. Then try it again, if it is still there try replacing the RCA"s.

If the hum is still there after you've redone the connections and replaced the RCA's, you may need to install a ground loop isolator.
Both www.crutchfield.com and www.sonicelectronix.com sell good ones.

Hope this helps

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1 Answer

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Sounds like your right side output is shot. And yes it can be fixed, but the cost factor would be higher than what you paid for the set itself. First see if your inputs are working correctly, this also could be your problem. Check all your connections.

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Maybe the speakers are no good. Have you tried hooking up a different set of speakers?

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1 Answer

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http://www.rcaaudiovideo.com/Cultures/en-US/SearchResults.html?search=RT2380

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