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Digital Out on an iMac?

So I have an iMac, running Vista. It's late 2009 version, newest with the exception of the new 27" models. I'm trying to connect the mini-digital out to the SPDIF  in on my audio amp. I bought a cable, and an adapter. It just doesn't work...
The adapter works fine, seeing how it's just a hollow piece of metal and plastic.
The cable is also working fine - I've tested it with my TV.
The iMac has output, you can see it on the other end of the fiber.
Everything I've checked seems to be working, and there's only one possible explanation I can think of. The iMac is transmitting with a different format. I'm new to optical audio cables, so If there is only one format, aka SPDIF and TOSLINK are the same, please let me know. And if they are not, can someone inform me on what I'm doing wrong and how to fix it?


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lemonie7 years ago
support.apple.com/kb/TA24899
Is there a soft option on the output format?
One might ask why on Earth you're running Vista on a Mac, and wonder whether the problem might be there?

L
Padlock (author)  lemonie7 years ago
Many have asked that question, and I have yet to come up with a sensible answer. Maybe because I like it better? Maybe because I haven't any problems before? The real answer, I have yet to figure out.

As far as soft option, I am not sure by what you mean. Do you mean a soft option to switch between analogue and digital? If so, then no. It does it automatically. A digital output is detected, and on the other end of the fiber you can see the light. So it clearly knows its fiber and not copper.

As far as the vista on a mac thing, you have intrigued me. I will reboot to OSX and see whether or not it still persists. Maybe apple just gave me a faulty Mac.
lemonie Padlock7 years ago
I meant some software configuration. The apple link says it'll do PCM or AC-3, if the thing does something it may not be configured properly?

L
jeff-o lemonie7 years ago
So did it work when you're booted into OS X?
Padlock (author)  jeff-o7 years ago
I haven't gotten around to it. Hooked it up with an old analog cable and forgot about it. Will so later, however. On fall break in Canada.
Padlock (author)  lemonie7 years ago
There are no options that specify the difference. I'm thinking it's the format thing, it just doesn't list them as different types.

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lemonie Padlock7 years ago
You probably know best on this one? But I do see options to try.

L
lemonie Padlock7 years ago
Jeff-o asks "So did it work when you're booted into OS X?"

L
Padlock (author)  lemonie7 years ago
Oh, I haven't gotten around to it. Hooked it up with an old analog cable and forgot about it. Will so so later, however. On fall break in Canada.