what kind of sound does a capacitor make when it's going bad?

Options
danger boy
danger boy Posts: 15,722
edited February 2008 in Electronics
so my Pioneer A-88X is still giving me fits.. it "pops' slightly after it warms up. does that mean a cap is leaking? I found some ugly residue under the amp attached to the frame? is it easy to spot which cap is going bad? does it ooze like green alien blood or some thing like that? :confused:
PolkFest 2012, who's going>?
Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
Post edited by danger boy on

Comments

  • dkg999
    dkg999 Posts: 5,647
    edited February 2008
    Options
    I haven't had one ooze slime yet, but I have heard that can occur. The one I remember clearly was doing the popping noise you reference, and also sending brief bursts of distorted sound to the speaker on that channel.
    DKG999
    HT System: LSi9, LSiCx2, LSiFX, LSi7, SVS 20-39 PC+, B&K 507.s2 AVR, B&K Ref 125.2, Tripplite LCR-2400, Cambridge 650BD, Signal Cable PC/SC, BJC IC, Samsung 55" LED

    Music System: Magnepan 1.6QR, SVS SB12+, ARC pre, Parasound HCA1500 vertically bi-amped, Jolida CDP, Pro-Ject RM5.1SE TT, Pro-Ject TubeBox SE phono pre, SBT, PS Audio DLIII DAC
  • John in MA
    John in MA Posts: 1,010
    edited February 2008
    Options
    Caps can faill in a million ways. Short out, go open, become intermittant, change value, etc. They can and do leak in some cases, too. The ones I've seen didn't look like alien blood (or maybe the alien blood I've seen was different) but if you have goo in your amp I'd certainly check the whole thing out.
  • danger boy
    danger boy Posts: 15,722
    edited February 2008
    Options
    yeah, every couple minutes it'll "tick" or pop in the right channel. and I think that is what is the problem with this amp. it works and it has good sound.. but eventually the quality degrades or cuts out briefly.
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin: