Question about Philips HTS3450 System

2 Answers

The equipment began buzzing after powering on. The buzz begins high then slows down to a crawl and then stops; audio works fine after that. We started switching it to an unused audio source instead of powering it off, which worked for a while. Now it does the buzzing whenever we switch between sources, too.

Posted by on

  • Anonymous Jul 05, 2008

    After powering began buzzing

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I had same thing happening until it finally died all together. no sound at all.....everything else works.....and sub lights up in standby. i took sub apart today....and found that 2 capacitors had swelled. you can see where i guess they got hot...because of the glue type stuff surrounding them went from yellow to browish -burnt color. so i'm looking for 2 capacitors before i can tell you if its the problem.

Posted on Jul 07, 2008

  • tjsfowler Jul 07, 2008

    i replaced the two 470uF 25V capacitors in the subwoofer..........with 470uF 35V ones......cause they where all i could find around town....and my sound is back:) the 35V ones are bit bigger but they fit into place for me. hope this helps out someone out there:)

×

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Sergeant:

    An expert that hasĀ over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 319 Answers

Sounds like a problem in the unit's power supply, have it checked by pro-tech

Posted on Apr 22, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Eliminate buzz from insignia tv to bose system


It sounds like a ground loop interference issue. The equipment grounds of all devices need to be a common ground.

http://www.coreaudiotechnology.com/audio-system-grounding-and-misconceptions/

May 10, 2015 | Bose Home Theater Systems

1 Answer

Buzz


Hi,

Is this happening on all your speakers at once or just one particular speaker?

If its all of them it sounds like you have some sort of interference going on, probably a ground loop. Have you added any extra equipment to your home cinema set up like a new TV or a cable box?

If it is a ground loop issue you can solve it by giving all your equipment a common earth, i.e. plugging all connected equipment into the same electrical outlet with an extension block.

If this doesn't do it, post back and let me know. Also it might be worth checking if your warranty is still valid.

Dec 19, 2007 | Sony DAV-S300 System

1 Answer

Just bought the RCA1023 and i have a buzzing sound trying to fix it i have it hooked to my tv through the HDMI cable i also have the audio cords (red and white) hooked up and i am still getting a very...


Buzzing is usally AC line noise leaking into an un-shielded cable somewhere or a floating ground. If the AC plug is reversible, try that. Sometimes the buzz is from an attached device. Make sure all audio cables are plugged in tightly at each end and routed away from or at right angles to any power cords and away from other sources of strong magnetic fields like TV's. I've also seen variable track lights induce noise but it's usually minor.


Try rotating the power cord in the wall outlet.


If it still does it with no cables or anything external attached it

Apr 01, 2011 | RCA Home Theater Systems

1 Answer

Radio interference in high voltage system


You mean, Ground loop humming, popping, buzzing in your speakers? Bypass the ground plug on your equipment and seperate the power cables from the audio cables.

Feb 23, 2011 | Home Theater Systems

1 Answer

Speakers buzz with no sound


Is this only with CD, only with THAT CD, or with nothing in particular selected or playing?

Check all connections for tightness as bad cable shield connections will let emitted noise into the system. Ditto for signal or speaker cables routed near power cables, TV's, other electrical sources.

Sometimews reversing the AC power cord polarity can resolve buzz/hum.

Feb 20, 2010 | Philips HTS3440/37 System

1 Answer

Audio buzz


Check to see if reversing the plug takes away the buzz. Some times turning the plug over in the wall socket i.e. reversing polarity, will remove the buzz.

Dec 09, 2008 | Philips HTS3400/37B System

1 Answer

Kef kit100 buzzing subwoofer


You have a bad set of Audio output IC's for the sub. There is two of them. TDA7293 REPLACE BOTH!!!
There is 4 on one side of board,and 2 on other "also 1 small one" The the two are for the sub,the other 4 are for the main speakers/surround. They sell on Ebay for $6-10 each or a kit of all 6 for $25.

Oct 25, 2008 | KEF Audio KIT100 System

1 Answer

A loud buzz sound when the surround sound unit is powered on.


There is most likely a voltage regulation fault, or some filter capacitors that are going defective. It would be best to have this serviced before the parts fail completely and cause some damage.

Jerry G.

Jun 03, 2008 | Home Theater Systems

11 Answers

Speakers buzz for about 1 minute when powering on or switching


Building on what WheatService said for any other newbs (like me) who may run across this...
1) Go to Radio Shack, get yourself two of the 272-1030 470uF/35V capacitors mentioned ($1.29/each) and a cheap soldering kit (mine came with solder and extras for $8). just take those numbers to the clerk, once he or she tries to sell you a couple cell phones, they should help you find the parts.
2) go home. disconnect the subwoofer from the wall, speakers, and dvd player
3) remove the 8 screws around the edge of the metal plate on back of subwoofer and carefully remove the metal plate and all the goodies attached to it. make sure to disconnect the two wires leading from the rest of the subwoofer to the circuit boards.
4) what you are looking at is two parallel circuit boards with a bunch of stuff in between them. to tell them apart, notice that one of the boards is home to a fan (amongst other things), and the other has the power cord running into it.
5) we want to remove the board that the power cord runs into, so make sure you've got the right one, and remove all of the screws which are holding it in place. again, be sure to unhook any cords before you yank off the circuit board.
6) once the board is removed, you should see two large heatsinks (pieces of metal). one is just a big rectangle that sticks straight up towards one end of the board and the other is kind of t-shaped (from the end) and a monstrosity. you'll want to look in the area between the two heat sinks but towards the smaller, rectangular one.
7) in that area, there may be some white foamy stuff sprayed around. take a look at the capacitors from radio shack and note their size. you are looking for two identical black, cylindrical capacitors roughly the same size as the ones you purchased (but a bit smaller). if you think you have the right ones, take a look at the side of them. you may have to scrape off some foamy stuff, but they should say 470uF/25V.
8) the basic idea here is that those 25V guys need to be replaced with 35V ones (the ones you bought). i'm no expert, but what worked for me is pulling lightly on the existing capacitors while melting the contact points from the bottom with the soldering tool. once those are removed, put the new ones in (push them almost all the way down so most of the wire is coming out the bottom). now turn the board back over and apply a generous bead of solder to each of the four wire points.
9) clip off the excess wire from the bottom, and marvel at your newfound expertise.
10) put the whole thing back together (steps 2-5 in reverse), remembering to connect the wires as you go.
11) turn it on and enjoy!

Nov 06, 2007 | Philips HTS3450 System

1 Answer

Kef Kit 100 Subwoofer Buzz


i got the same buzz problem

Oct 26, 2007 | KEF Audio KIT100 System

Not finding what you are looking for?
Philips HTS3450 System Logo

Related Topics:

123 people viewed this question

Ask a Question

Usually answered in minutes!

Top Philips Home Theater Systems Experts

Gyula Lacz

Level 3 Expert

482 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

kakima

Level 3 Expert

96518 Answers

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

Answer questions

Manuals & User Guides

Loading...