Question about RCA RT2500 System

7 Answers

RT2500 speaker hum buzz until unit warms up

I was given this unit used and have had it for about three years. It has had this problem and seems like it has gotten worse as time goes on. When I turn on the system, it has no regular sound, just buzzing out of the speakers. If I turn it up more, the buzzing gets louder. I can see a green light is on inside the unit towards the back. When the unit warms up fully (about 20-25 minutes) then the music starts to come in choppy until it finally is fully warmed up and it works well. When it starts coming in the light flashes, and then when it is working fully, the light is off. It does not matter what type of input I use, it still has the same problem. Also, I noticed that if I set my preset equalizer to flat, then I get regular music out of all speakers except the sub. The sub still has the buzz until the unit warms up. All other equalizer presets result in buzz from all speakers until it fully warms up. Any help would be greatly appreciated.

Posted by on

7 Answers

Re: RT2500 speaker hum buzz until unit warms up

Put into standby press stadium night DPSoff then club in that order that will restore if u did it right when you turn it back on it will be on turner 87.50 thats all it took 4 mine
hope it works 4 u

Posted on Apr 14, 2008

Re: RT2500 speaker hum buzz until unit warms up

When replacing the 2 capacitors, do they have to be 16v??? Cause 35v 6800uf capacitors is all I can find.

Posted on Feb 13, 2008

Re: RT2500 speaker hum buzz until unit warms up

If you want real killer sound get 2 cneter channel speakers with them both parellel abd stack em with rubber feet tops and bottom to stop movement, then get on ebay and get 4 baby adevent and the tweeter updates if they are online. wire them with the standard rca speakers in parallel, then get two 12 car subs from pioneer hard cone type place them in a car slant box and wire parallet, HOLD ON I HAVE FOLKS screaming turn it down unreal for the price and I mean unreal.... then again my parasound 2500u and 4 PIONEER SA9800 amps running via line inputs only and OLD SCHOOL EV's will make you deaf! Oh pleaes remove all items from shelf and keep glass out of the listening area!

Posted on Oct 10, 2007

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers
Re: RT2500 speaker hum buzz until unit warms up

I can verify the solution provide by videoguy1742. I had the same problem and replacing the two 6800uf / 16v capacitors fixed the problem and it only cost me $8.00 and two days to find a supplier. Most places like Radio Shack, BestBuy, etc. don't sell anything this big. I reccomend you call your local tv repair shop and ask them for the capacitors. If they don't have them, then ask them for their supplier's phone number. That's how I got mine. Just for the record, every RCA product I've ever bought breaks within 2 years. But they are cheap if you're short on coin. If you've got some extra jingle in your pocket get a Pioneer or JVC.

Posted on Oct 02, 2007

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 3 Answers
Re: RT2500 speaker hum buzz until unit warms up

This problem is CURED simply by replacing 2 capacitors inside on the main board. They are easily identified by a bulge on the top end of the capacitors. The capacitors are located between the heat sinks. The size is 6800uf/16v. I am a RadioShack dealer and sold a few of these in 2000/2001. I bought one for myself. I have repaired only 2 that had the same problem as listed by HAGUC above. They both are working great and for the record. . .are NOT peices of JUNK,. . .hehe. . .they just need a little TLC. Parts available from larger electronics parts houses, not at RadioShack

Posted on May 07, 2007

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 17 Answers
Re: RT2500 speaker hum buzz until unit warms up

Same exact thing no solution so... I inserted a screwdriver into the electronics in the unit and put it in audio receiver hell where RCA should have put their defectife product to begin with. :-)

Posted on May 07, 2007

Re: RT2500 speaker hum buzz until unit warms up

I have the same system that i bought new and after about 3 yaers it did the same thing for no reason. i think you get what you paid for!!!

Posted on Jan 25, 2007

1 Suggested Answer

bmwrider
  • 215 Answers

SOURCE: rt2250 rt2500 speaker static noise hum buzz until fully warmed up

It sounds like a capacitor in the power supply is just about to die. With the power disconnected have a look at the large tin can looking gizmos near the power transformer. There could be a couple of them. Leave the unit switched off for a while before going near them they could still pack a splat. Replace them with the same value and make sure they're connected the right way and it should solve your problem. Whilst in there have a good look for any other smaller capacitors which look as if they're getting rounded at the top. Replace them too. Either that or dig deep and buy a new one.

Posted on Jul 22, 2006

Add Your Answer

0 characters

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...
3 Points

Related Questions:

1 Answer

Surround sound doesnt work. When i switch the surround on there is a buzzing/ hum from the speakers. The sub has a hum in analog mode. I try to switch to theater, club, church etc. And still a hum was...


Back up, open the manual and set it up with test tones to verify the hardware before trying anything else. Then onboard FM. Then external sources (according to their manuals).

Hum/buzz solutions are common on the internet. Do some web searching for "audio system hum" to find somethign that matches your symptom.

Sep 01, 2011 | RCA RT2500 System

1 Answer

Buzzing sound coming from all speakers


Can't say for sure (not a lot to go off of) but whenever i hear a buzzing sound from my speakers, its because of a poor connection (broken/exposed/bent) of the audio cables (whether its the red/white, or headphone jack (computers)).

Oct 03, 2010 | RCA RT2500 System

4 Answers

A few weeks ago i would not get any sound then after the unit would warm up i would get a static sound for a while then it would clear up and be fine. Now no sound when i turn it on but after it warms up i...


Check all you wire connections to speakers and in the back of the receiver.If one is lose especially behind the amp it will create static noise..Did you move it around recently?It might have pulled a wire.Another thing that could cause that is build up of dust on the circuit board..Blow the inside out with a can of compressed air threw the holes in the side..Also check to make sure that in the wall outlet that you have it plugged into that its the only one there because that will also pick up static noise from the other accessories that you have plugged into it.Hope this helps you and have a great day...

Dec 07, 2009 | RCA RT2500 System

1 Answer

I only get audio in stereo mode and sometimes in other modes if i warm unit up for a long time. the green light blinks on & off. Also speaker icons for main speakers are always flashing. I have had...


Sounds like the it is overheating do to poor ventalation and or there is speaker wires that maybe crossed and or shorting and causing the unit to do this. If everything is fine, then the amp is weakend from old age and wont make it much longer.

Jun 19, 2009 | RCA RT2500 System

1 Answer

RE: RCA RT2500 Receiver


take the cable of right speaker(which is ok)and put it instead of the left cable if it is ok-your problem will be in your left speaker or its cable-if it is not working the problem in your receiver output stage.(left channel path problem)

May 18, 2008 | RCA RT2500 System

1 Answer

RCA RT2500 NO SOUND


Similar problem here, at first 20-30 min warm-up time, followed by irregularity in sound levels, to a complete failure after using for around 30 minutes after warm up (choppy sound to a steady buzz). I wonder if over heating has something to do with it since I left it on all the time after the need of a warm-up occurred. One night, a horrid buzz came from the system and ever since it would become unbearable to listen too after a few minutes, I am debating either to attempt a fix or chunk it. I haven't tried the caps and fuses yet, but seeing your problem leads me to believe it is something more to the problem, and more likely a better investment would be an upgrade.

Jan 18, 2008 | RCA RT2500 System

2 Answers

No Sound


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

Oct 11, 2007 | RCA RT2500 System

2 Answers

Buzzing speakers


It is merely degradation of the connection. Try unconnecting the speakers, cleaning the tips a bit, replacing them in, removing, recleaning, and then replacing a final time. This should get some scoring off of the connection... Aside from this, a new set of speaker wire is the best solution but just let me know what you decide on! Hope this helps!

Jul 26, 2007 | Sony MHC-ZX70DVD System

2 Answers

Rt2250 rt2500 speaker static noise hum buzz until fully warmed up


It sounds like a capacitor in the power supply is just about to die. With the power disconnected have a look at the large tin can looking gizmos near the power transformer. There could be a couple of them. Leave the unit switched off for a while before going near them they could still pack a splat. Replace them with the same value and make sure they're connected the right way and it should solve your problem. Whilst in there have a good look for any other smaller capacitors which look as if they're getting rounded at the top. Replace them too. Either that or dig deep and buy a new one.

Oct 23, 2005 | RCA RT2250 System

Not finding what you are looking for?
RCA RT2500 System Logo

702 people viewed this question

Ask a Question

Top RCA Home Theater Systems Experts

Walesarumi
Walesarumi

Level 3 Expert

6993 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Cindy Wells

Level 3 Expert

4693 Answers

Are you a RCA Home Theater System Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...