Bad Cap/Resistor?

stubby
stubby Posts: 723
edited December 2011 in Troubleshooting
So I have this curious little snafu with my right channel SRS2:

Whenever I disconnect the speaker cable and reconnect it, the tweeter array does not operate until you give the volume a fair amount of crank. Then it comes back in, not gradually, instantly. Sometimes it will go out again after the volume is turned back down; another raise in volume always brings it back.

When I disco the speaker cable is the ONLY time this happens. I have re-capped the crossovers, along with new mills resistors. Solens on the low range, and Sonicraft on the tweets. After the initial break-in is when this all started. I thought it would go away with time, but no.

Any thoughts?

stubby
SRS 3.1TL
Harman Kardon Citation 5.1
Anthem AVM2



Post edited by stubby on
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Comments

  • F1nut
    F1nut Posts: 50,551
    edited December 2011
    You've got a bad connection/bad solder joint. Time to break out the VOM and soldering iron.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

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  • stubby
    stubby Posts: 723
    edited December 2011
    Yeah, that's what I was thinking, I just can't wrap my feeble mind around why it only happens when I disconnect and reconnect the speaker cable. The speaker isn't seeing an electrical signal when the amp is off, so why does it care if the cable is connected or not?
    F1nut wrote: »
    You've got a bad connection/bad solder joint. Time to break out the VOM and soldering iron.
    SRS 3.1TL
    Harman Kardon Citation 5.1
    Anthem AVM2



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  • Tour2ma
    Tour2ma Posts: 10,177
    edited December 2011
    stubby wrote: »
    When I disco the speaker cable is the ONLY time this happens.
    Since this is the case, I'd think the wire termination is the likely culprit... especially if it's soldered. At low volume "wiggle" the wire.
    More later,
    Tour...
    Vox Copuli
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  • inspiredsports
    inspiredsports Posts: 5,501
    edited December 2011
    Post #5 wenzizi reported as spam for removal
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  • george daniel
    george daniel Posts: 12,096
    edited December 2011
    Had a similar issue years ago--sounds like it's time to touch up the solder points.Good luck--let us know.
    JC approves....he told me so. (F-1 nut)
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  • stubby
    stubby Posts: 723
    edited December 2011
    Update: Forgot to mention this; last time this happened I tapped on the tweeter bezel and the sound would cut in and out. Not sure if the lower tweeter was fully functional as it operates at a lower frequency. Still only happens with disconnection/reconnection of speaker cable. I pulled the tweeter and the connections were fine with it.
    SRS 3.1TL
    Harman Kardon Citation 5.1
    Anthem AVM2



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  • Toolfan66
    Toolfan66 Posts: 17,237
    edited December 2011
    My mind still tells me a bad soldering joint. Have you tried another set of speaker cables?
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  • Tour2ma
    Tour2ma Posts: 10,177
    edited December 2011
    Yup... eliminate the external stuff first.
    stubby wrote: »
    Update: Forgot to mention this; last time this happened I tapped on the tweeter bezel and the sound would cut in and out. Not sure if the lower tweeter was fully functional as it operates at a lower frequency. Still only happens with disconnection/reconnection of speaker cable. I pulled the tweeter and the connections were fine with it.
    Not sure what to make of the tweeter tap info... Although they seem to me to be far from equal, it seems that mechanical energy either from the tap or the increased MW action from cranking up the volume "makes" the problem connection.

    It seems like you are only talking about one channel. Have you tried swapping speaker wires to see if the problem swaps?

    I'd swap wires at the speaker end only. If the problem does not swap, I'd start hunting at the tweets' binding posts and follow the HF path from there.

    However, if the problem swaps channels...
    - swap the amp end of the run; if problem does not swap back, think speaker cable (likely the termination).
    - if the problem swaps back... think electronics.
    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
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  • stubby
    stubby Posts: 723
    edited December 2011
    Thanks to everyone for their input. Well, I guess I'm gonna have to tear into the crossover and check things out. I tried using a completely different set of speaker cables and have the same problem, and I was not able to duplicate the tweeter cut in/out by tapping on the bezel. It stayed off until I gave the volume some "whelly". And yes, its only the right channel that does this.

    stubby
    SRS 3.1TL
    Harman Kardon Citation 5.1
    Anthem AVM2



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