RE: commodore plus 4 without sound...

From: Didier Derny <>
Date: Wed, 14 Mar 2012 21:51:13 +0100
Message-ID: <002501cd0224$315896e0$9409c4a0$@org>
Many thanks

It works just fine it's just my dazzle that refuse to grab the audio signal
from the commodore (works fine for the video)
with the sound command I've been able to produce a signal at about 1000hz
and verify that it was really controlled by
the sound command. (I also compared to the video signal...) 

The signal I get on my oscilloscope is roughly a square signal, between
-0.3v and +0.3v 
Is it normal for a commodore ?



-----Message d'origine-----
De :
[] De la part de Gerrit Heitsch
Envoyé : mercredi 14 mars 2012 20:56
À :
Objet : Re: commodore plus 4 without sound...

On 03/14/2012 08:48 PM, Didier Derny wrote:
> Hi all,
> A few month ago, I bought a Commodore plus4. It works except for the
> I have absolutely no sound.
> I’m thinking to repair it. But I don’t know any easy way to produce a
> continuous sound..
> I’m planning to follow tracks of the sound signal from the ted to the
> connector with an oscilloscope.
> Is there anything easy to produce a sound from the basic ?

Can't find my manual at the moment, but this should give you something:

SOUND 1,200,2000

(SOUND <channel>,<frequency>,<duration>)

Hope this helps


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Received on 2012-03-14 21:00:09

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