Discussion about the Korg PolySix synthesizer group photo

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Discussion about the Korg PolySix synthesizer

Index last updated: 2026-04-14 00:08 UTC

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Re: Polysix no sound

2005-12-04 by hansomchaam

Thanks for reply, I fixed the battery problem as described.
I checked (again) all connections/signals with an oscilloscoop.
I don't see any output, also no gate signals when key-stroke on ic5 
KLM-366. 
What shape must be on TP2 KLM367?
Thanks for your help.
Han
--- In PolySix@yahoogroups.com, "gil_we" <gil_we@y...> wrote:
>
> How are the main voltages ? Has the battery leaked ?
> 
> 
> --- In PolySix@yahoogroups.com, "hansomchaam" <hansomchaam@y...> 
> wrote:
> >
> > Hello,
> > Again here is a polysix with the "no sound at all" problem.
> > When I measure with oscilloscoop on KLM366 (new) ic 9 pin 1 
there 
> is a 
> > constant pattern but not a 0.5 V/oct. Keystrokes has no effect 
at 
> all, 
> > processor 8049 gives signals on DB0..DB8. Also no output on gate 
> 0...3 
> > = pin 15,10,7,2 ic 5 on keystroke.
> > Does anyone has suggestions.
> > Please help me, I look forward to hear the nice sound again.
> > Thans,
> > Han.
> >
>

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