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Posted by JJ on March 3, 2008, 12:03 pm
Please log in for more thread options davy wrote:
> If the speakers are 'self powered' as many are, this tells us that they
> would contain an amplifier, you'll have a power cord and a signal lead
> going to at least one speaker. If this is the case, the best bet is to
> try another set of speakers or try them elsewhere, self powered speakers
> that contain an internal amplifier as easy to test.
I am talking about the internal laptop speakers, not a pair of external
speakers.
So the problem is that the internals speakers are giving distortion and
the audio-out/headphone jack stopped working entirely (well, it worked
enough to know that something was plugged into it, because it switched
off the internal speakers)
Rebooting the machine several times had no effect on the situation.
However, after being off over the weekend, the sound now seems to be
functioning correctly again (both internal speakers and headphone jack).
I guess I'll cross my fingers and hope it lasts.
-JJ
>
> Simply connect to a CD player or a small radio line audio output (not
> the speaker output sockets), we are injecting a low level audio signal
> into them this will tell us if they sound OK or not.
>
> From what you described sounds as though the amplifier is suffering
> from crossover distortion, usually due to a faulty output chip, it could
> be the speakers themselves.
>
> davy
>
>
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