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IMac Apple Pro Speakers Issue

 
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bcfd36

External


Since: Dec 27, 2005
Posts: 4



(Msg. 1) Posted: Sun Jan 27, 2008 6:51 pm
Post subject: IMac Apple Pro Speakers Issue
Archived from groups: comp>sys>mac>hardware>misc (more info?)

My PowerMac PowerPC G4 (white half dome shaped) recently developed a
very annoying problem... the Apple Pro speakers stopped working. This
led to much poking around and swearing. I tried sacrificing an old 486
chip to it, but that didn't help either.

What I've found is the following:

1. If the Apple Pro speakers are plugged in to the mini-jack, no sound
comes out of them.
2. At that point, even if I unplug the speakers, no sound comes out of
the internal speakers either.
3. If I restart the unit (not shut down) after the speakers have
stopped working, the speakers continue to not work.
4. If I shut down the unit and then power back up, the internal
speaker starts working as long as the Apple Pro speakers are not
plugged in.
5. As soon as the Apple Pro speakers are plugged in again, all
speakers (internal and Apple Pro) stop working.

So, do you think it is the speakers or the sound card?

Dave Scruggs
Captain, Boulder Creek Fire
Sr. Software Engineer, Lockheed Martin

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willcraft

External


Since: Jan 28, 2008
Posts: 1



(Msg. 2) Posted: Mon Jan 28, 2008 12:32 am
Post subject: Re: IMac Apple Pro Speakers Issue [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On Jan 28, 3:51 pm, bcf... DeleteThis @aol.com wrote:
> My PowerMac PowerPC G4 (white half dome shaped) recently developed a
> very annoying problem... the Apple Pro speakers stopped working. This
> led to much poking around and swearing. I tried sacrificing an old 486
> chip to it, but that didn't help either.
>
> What I've found is the following:
>
> 1. If the Apple Pro speakers are plugged in to the mini-jack, no sound
> comes out of them.
> 2. At that point, even if I unplug the speakers, no sound comes out of
> the internal speakers either.
> 3. If I restart the unit (not shut down) after the speakers have
> stopped working, the speakers continue to not work.
> 4. If I shut down the unit and then power back up, the internal
> speaker starts working as long as the Apple Pro speakers are not
> plugged in.
> 5. As soon as the Apple Pro speakers are plugged in again, all
> speakers (internal and Apple Pro) stop working.
>
> So, do you think it is the speakers or the sound card?
>
> Dave Scruggs
> Captain, Boulder Creek Fire
> Sr. Software Engineer, Lockheed Martin

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Neill Massello1

External


Since: Aug 15, 2003
Posts: 1073



(Msg. 3) Posted: Mon Jan 28, 2008 2:49 am
Post subject: Re: IMac Apple Pro Speakers Issue [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

<bcfd36.TakeThisOut@aol.com> wrote:

> My PowerMac PowerPC G4 (white half dome shaped) recently developed a
> very annoying problem... the Apple Pro speakers stopped working. This
> led to much poking around and swearing. I tried sacrificing an old 486
> chip to it, but that didn't help either.
>
> What I've found is the following:
>
> 1. If the Apple Pro speakers are plugged in to the mini-jack, no sound
> comes out of them.
> 2. At that point, even if I unplug the speakers, no sound comes out of
> the internal speakers either.
> 3. If I restart the unit (not shut down) after the speakers have
> stopped working, the speakers continue to not work.
> 4. If I shut down the unit and then power back up, the internal
> speaker starts working as long as the Apple Pro speakers are not
> plugged in.
> 5. As soon as the Apple Pro speakers are plugged in again, all
> speakers (internal and Apple Pro) stop working.
>
> So, do you think it is the speakers or the sound card?

You have an iMac, not a PowerMac. The Pro speakers can only be used with
the special jack on some G4 Mac models. The following Apple Support
article discusses connecting them to an iMac G4.

<http://docs.info.apple.com/article.html?artnum=34555>

A simple diagnostic step would be to see if standard powered speakers
work when connected to the iMac's headphone minijack.
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