PSW 202 Buzzing Sounds

bananaboy69
bananaboy69 Posts: 7
edited December 2011 in Troubleshooting
I own a PSW 202 Active Subwoofer and I usually use it with my home theatre to watch tv. I've used it for almost 3 years now and tonight, it started making intermittent buzzing noises, usually at certain frequencies. It sounds almost like a blown speaker but I inspected the cone in the front and did not find any rips or damage. What is the cause of this and how do I fix it? Thanks!
Post edited by bananaboy69 on
· Share on FacebookShare on Twitter

Comments

  • Rev. Hayes
    Rev. Hayes Posts: 475
    edited May 2010
    Sounds like it probably is your driver. Looking at the front of the cone you wouldn't be able to tell if the spider (the corrugated disk at the base of the cone) has separated from the metal basket. If you remove the driver from the box (unplug first :D) and light ly lift the cone from underneath you will likely see the spider rise up as well. Normally this piece is glued down and will not move.
    Sounds good to me...
    · Share on FacebookShare on Twitter
  • Rev. Hayes
    Rev. Hayes Posts: 475
    edited May 2010
    After my afternoon beverage and some light contemplation I begin to think your trouble could alternatively be some other loose part in/on the cabinet. especially if it only buzzes at certain frequencies.

    If you havent already, search the forum for a similar problem.

    There are a lot more knowledgeable people than me out here and almost all the questions I have had where thoroughly addressed by earlier threads.
    Sounds good to me...
    · Share on FacebookShare on Twitter
  • bananaboy69
    bananaboy69 Posts: 7
    edited December 2011
    UPDATE: Thanks for the feedback! Shortly after the above issue, one night while I was watching TV, my subwoofer made a high-pitched whining noise and then stopped working. When I went to investigate, it smelled like an electrical burning odour and the power LED was not on. Did the subwoofer's amp blow and what are my options? My guess is that it's out of warranty already? I'm apprehensive of purchasing another similar Polk Audio subwoofer if it blew so fast and I don't crank it loud either.
    · Share on FacebookShare on Twitter
  • Phasewolf
    Phasewolf Posts: 514
    edited December 2011
    It sounds like the power supply unit gave up the ghost. If you are friendly with a local T.V repair shop I would take it in and ask if they would check out the caps and if bad replace them. It could also be the main amp IC I had a sub do the same thing and the stk packs cost me $18 and I was back on the road.
    Absolute corruption empowers absolutely.

    Lg 55LW5600 TV
    Onkyo PR-SC 5508
    Legacy Audio Focus SE
    Legacy Audio Silverscreen HD center
    Polk F/X500i Rears
    Parasound HCA-3500
    Sunfire Grand Cinema
    Behringer iNUKE NU6000DSP
    Pair of CraigSUB SS-18.1
    · Share on FacebookShare on Twitter
  • bananaboy69
    bananaboy69 Posts: 7
    edited December 2011
    @Phasewolf, thanks for the reply! Sorry, I'm a newbie... so it sounds like either the power supply or the on-board amp is hooped, right? What exactly are caps, main amp IC, and stk packs? I can find some TV repair places, unfortunately, I'm not friendly with any of them! Thanks again for all your help!!
    · Share on FacebookShare on Twitter
  • MrHappy
    MrHappy Posts: 3
    My understanding of caps are capacitor, and in the case of the subwoofer, they are the can type and can easily be replace. Not very hard if you know how to solder.
    · Share on FacebookShare on Twitter
  • MrHappy
    MrHappy Posts: 3
    I had a polk subwoofer model
    · Share on FacebookShare on Twitter
  • MrHappy
    MrHappy Posts: 3
    Sorry about that. I had a polk audio subwoofer model 6000BD that when plugged in it made a loud humming noise. I took it apart and noticed that there were two can capacitors that were bad. I replaced them both being care to put the new one with the polarity in the same way the bad one were in, however after replacing them I still get the load humming. I took of the speaker from my good Subwoofer and connected the speaker from the RM6000BD bad subwoofer and the speaker works perfectly. With that being said I know that it is not the speaker. So, does anyone here know why I am getting the loud humming but not sound other then the humming.
    · Share on FacebookShare on Twitter