Loud Pop when powering up Radio
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Cadillac Allante Forum Discussion, Loud Pop when powering up Radio in Past Cadillac Vehicle Discussion; Loud Pop when powering up Radio ( might be just the back speakers ) anybody know why It might do ...
  1. #1
    cap
    cap is offline Cadillac Owners Member
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    Loud Pop when powering up Radio

    Loud Pop when powering up Radio ( might be just the back speakers )

    anybody know why It might do this

    doesn't matter what the volume is, or motor running or off.

    faders works fine and the unit sounds good. Just the loud pop ( very loud )

    ohya forgot to mention that it is a 1990 Allante


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    Stealth's Avatar
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    Re: Loud Pop when powering up Radio

    i believe that may be the pop of death.
    the capacitors may be on their last leg.

    if you are good with a soldering iron you can replace the caps,
    also,
    you can get them overhauled by BOSE directly - i think they also include new cones,
    or for replacement exchanges, no new cones, you can contact allantesource.com.



    .

  4. #3
    cap
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    Re: Loud Pop when powering up Radio

    thanks for the info. I guess you are refering to caps in the individual amps ?

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    Stealth's Avatar
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    Re: Loud Pop when powering up Radio

    that would be correct ...



    Quote Originally Posted by cap View Post
    thanks for the info. I guess you are refering to caps in the individual amps ?

  7. #5
    cadillac_tech is offline Cadillac Owners Fanatic
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    Re: Loud Pop when powering up Radio

    Your BOSE amp relay might be stuck on. I've seen this before, LOUD pop at key on. It is near the power antenna - middle one of the three.

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    Stealth's Avatar
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    Re: Loud Pop when powering up Radio

    how does one un-stick the relay?

    i didnt even know we had a relay there.
    is that relay on all year models?




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  9. #7
    cap
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    Re: Loud Pop when powering up Radio

    thanks Stealth, worked like a charm... changed the 16 cap's in the back amps. Now they turn on with almost a fade to what ever volume is set at. Cost about $9 dollars cdn to do 4 amps ( with some extra caps, Bought 10 of each instead of 8...cheaper).

    I found guides @ about 3 different sites, very helpfull.

  10. #8
    Stealth's Avatar
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    Re: Loud Pop when powering up Radio

    you are very welcome.

    can you email / IM the location of those guides to me?
    i am a full supporter of "interchange of knowledge."

    thanks


    note:
    for those that dont know, the IM for yahoo is the same email address.
    meaning, to the yahoo IM name, simply add the < @yahoo.com >
    to get the email

  11. #9
    cap
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    Re: Loud Pop when powering up Radio

    okay... I think I sent you a rar file with 3 pages in it ???

    if not let me know

  12. #10
    Stealth's Avatar
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    Re: Loud Pop when powering up Radio

    got it,
    thanks

  13. #11
    KurtAustinTx is offline Cadillac Owners Member
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    Re: Loud Pop when powering up Radio

    I know this is an old post but hopefully some of you are still on this forum. A friend just bought an 89 Allante & it has speaker issues. I would like to replace the caps just need to verify which ones. I'm looking at the circuit board and I assume the 8 electrolytic caps(small round cans) on each board. Is that correct? I appreciate any help you can provide. Thanks -Kurt

  14. #12
    cadillac kevin's Avatar
    cadillac kevin is offline Cadillac Owners Master
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    Re: Loud Pop when powering up Radio

    you are correct....those are what you need to replace

  15. #13
    KurtAustinTx is offline Cadillac Owners Member
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    Re: Loud Pop when powering up Radio

    Thanks Kevin.

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