The Kawai & Teisco Analog Synths Group

So, the first thing I should do is remove the NiCad battery, right? Do you think the stuck notes could be a symptom of the circuit board being damaged?

Thanks for your help.

- JB

--- In kawai-teisco@yahoogroups.com, "siwanyzki" <staniwan@...> wrote:
>
> I use my all the time with no battery.  I have all the settings for my presets written down.  All the memory locations default to the "Basic SX240" settings.   You can replace the nicad battery with a standard CR2032 Lithium battery with a diode in place so the lithium battery does not receive a charge from the synth charging circuit.  The battery would explode without a diode in place.
> 
> 
> 
> 
> 
> 
> 
> 
> --- In kawai-teisco@yahoogroups.com, "jimmyb00ts" <jimmyb00ts@> wrote:
> >
> > Hello all, I searched the archives so apologies if these subjects have been definitively responded to.
> > 
> > Can I use this synth without a battery (in other words, if I desolder the internal original NiCAD battery, will the synth work as normal, save for the inability to save presets?)
> > 
> > My SX-240, which I just received, is in near-mint condition cosmetically; however when I turn it on, four consecutive notes in the lower half of the keyboard are constantly droning. Does this mean I have circuit board damage from a leaking battery, or just that said battery is dead? 
> > 
> > Where can I find a replacement LI-ION battery as opposed to a NiCAD (I found links in previous posts to NiCAD batteries but I don't want to deal with a hazardous battery once again in 2024!)
> > 
> > Finally, how many of these synths were produced? I have read estimates including 1000 and 3000 total. Has anyone got the definitive number or something close?
> > 
> > Thanks for your patience and time!
> > 
> > - JB
> >
>