amp not working

baykroyd
baykroyd Posts: 3
edited January 2011 in Troubleshooting
my subwoofer had no power to it , so i pulled the amp and noticed a blown fuse , after replacing the fuse and pluging in the sub a loud humming is all that came from the unit with absolutly nothing wired to the unit , so like i always do i tried banging the unit , the sub worked for about three seconds and now there is a loud fluttering sound , any suggestions
Post edited by baykroyd on

Comments

  • ben62670
    ben62670 Posts: 15,969
    edited January 2011
    What model is it?
    Welcome to Club Polk.
    Ben
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
  • baykroyd
    baykroyd Posts: 3
    edited January 2011
    its a polk audio model # psw404
  • BlueFox
    BlueFox Posts: 15,251
    edited January 2011
    Hit it harder.
    Lumin X1 file player, Westminster Labs interconnect cable
    Sony XA-5400ES SACD; Pass XP-22 pre; X600.5 amps
    Magico S5 MKII Mcast Rose speakers; SPOD spikes

    Shunyata Triton v3/Typhon QR on source, Denali 2000 (2) on amps
    Shunyata Sigma XLR analog ICs, Sigma speaker cables
    Shunyata Sigma HC (2), Sigma Analog, Sigma Digital, Z Anaconda (3) power cables

    Mapleshade Samson V.3 four shelf solid maple rack, Micropoint brass footers
    Three 20 amp circuits.
  • baykroyd
    baykroyd Posts: 3
    edited January 2011
    lol tried that to
  • disneyjoe7
    disneyjoe7 Posts: 11,435
    edited January 2011
    Well if you could hit it and it sounded ok for a couple of seconds, I feel you have a bad solder joint on the circuit board. If you could you could resolder the circuit board, looking for any area that gets hot.

    Speakers
    Carver Amazing Fronts
    CS400i Center
    RT800i's Rears
    Sub Paradigm Servo 15

    Electronics
    Conrad Johnson PV-5 pre-amp
    Parasound Halo A23
    Pioneer 84TXSi AVR
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    Panasonic 42-PX60U Plasma
    WMC Win7 32bit HD DVR


  • Tour2ma
    Tour2ma Posts: 10,177
    edited January 2011
    BlueFox wrote: »
    Hit it harder.
    LOL... classic...

    dj7,
    Agree.. Flutter could be 60 Hz AC.

    If the warranty's expired (or has been beaten out of it), take a look...
    If still under waranty, call CS and they'll probably ask you to take a look...
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "Death doesn't come with a Uhaul." - Dennis Gardner

    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
  • DON73
    DON73 Posts: 516
    edited January 2011
    I'd been using the preamp section of this receiver with my Adcom 5800 power amp until recently when I remembered I had an Adcom preamp collecting dust on top of my gun safe. I hooked the Yamaha back up to use as just a receiver and it played ok for several weeks and then I noticed a drop in volume to the right channel so I tapped on the volume knob and the volume returned to normal for a short time before that channel cut out completely. I took the cover off, looked it over and decided to try some contact cleaner on the volume control. I hooked it back up and it played just fine for about half an hour and the preamp quit completely. I can use the power amp side of the receiver just fine. What's most likely the reason for this? Broken solder joint or very dirty volume control or worse. Just an educated guess.......:smile::smile:

    What is the difference between DETOXIT that everyone here likes so well and regular contact cleaner?
    TIA
    TO ERR IS HUMAN. TO FORGIVE IS CANINE.
  • DON73
    DON73 Posts: 516
    edited January 2011
    My post was intended to be a new post and I marked it accordingly. I didn't mean to hang it on the OP and don't know how to move it. maybe I'll just have to start another thread????:smile:
    TO ERR IS HUMAN. TO FORGIVE IS CANINE.