Thanks for the input ;)
Yes I checked to make sure it was set to produce sound (I have a number
of modulars) but I will check the output jacks and try the ext IN.
Seems like there is something fundementally wrong with the output,
since I get nothing, but the GATE led lights when keys are pressed.
Also will check the PS feeds too.
Regards
Rory
On Jun 24, 2004, at 11:23 AM, greg montalbano wrote:
> At 10:49 AM 6/24/04, you wrote:
> Regarding the Pro-One:
>
> First, it helps to narrow down the problem.
> No offense, Cory, but are the controls set to produce sound? (I once
> had a perfectly functional ProOne brought to me for service that had
> all the mod switches set to produce zero sound). Trying out some of
> the test patches in the manual would eliminate this possibility.
>
> Next, have you checked the output voltages on the back panel jacks (1
> volt per octave keyboard control, and positive voltage from the gate
> out)?
>
> After that, have you tried sending external audio through the filter
> input jack? It's possible for an oscillator to fail, but rare for BOTH
> to die at the same time.
>
> Are you willing to open up the unit & test the power supply feeds?
> The ProOne requires a heavy +5 load for the digital circuits, and plus
> & minus 15 volts for the analog. Any of those missing or out of spec
> can disable the synth.
>
> Check those things out, & we can go on from there.
>
> ~GMM
>
>
> ----- Original Message -----
> From: "Rory Mc Donald" <rorymcd@...>
> To: <oldsynths@yahoogroups.com>
> Sent: Wednesday, June 23, 2004 7:32 PM
> Subject: [oldsynths] Service question on Sequential Pro-One and
> WaveStation
>
>
> > Hi all:
> >
> > I have a Sequential Circuits Pro-One, with the original box and
> manual.
> > Unfortunately it does not put out any audio.
> > It triggers the gate and I get some sort of audio bleed (same
> frequency
> > no matter what I do).
> > Any thoughts on how to go about repair of this unit?
> >
> > 2) I have a Korg Wavestation (original) in nice shape with all the
> > manuals etc but there is one problem with it:
> > It plays fine except the octave directly below middle C doesnt work
> at
> > all. Is this a octave divider problem, or what?
> > Anyone who knows this unit please advise- I can solder and swap
> parts
> > but dont know what to look for at the moment.
> >
> > Regards
> > Rory McDonald
> > OldSynths Moderator
> > rorymcd@...
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
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