Korg Poly800/EX800 Users

Marcus,

we should probably document your "secret" somewhere on this site.

Mike.

--- In korgpolyex@yahoogroups.com, "Jon" <shonokij@...> wrote:
>
> Thank you!
> 
> I'll let you know if I get it to work.
> 
> //Jon
> 
> --- In korgpolyex@yahoogroups.com, Marcus Wilson <JB@> wrote:
> >
> > Q1 and Q3 can be replaced by:
> > BD140
> > 
> > http://www.dse.com.au/cgi-bin/dse.storefront/ 
> > 4735dc390a33bb062740c0a87f9c06b4/Product/View/Z1444
> > .85c ea
> > 
> > Q18 can be replaced by:
> > BD139
> > 
> > http://www.dse.com.au/cgi-bin/dse.storefront/ 
> > 4735dc390a33bb062740c0a87f9c06b4/Product/View/Z1443
> > .85c ea
> > 
> > just be sure to ensure they are in the right way around!
> > 
> > I have had 3 polys with no powerup, and dirty looking transistors.
> > 
> > By replacing these 3 transistors I have been able to resurrect 3  
> > polys so far!
> > 
> > this secret is now out, and good luck to all who wish to try to  
> > repair a dead poly using this replacement method.
> > 
> > Once these are replaced you should be able to see 11 P on the
display  
> > of the poly, and re-load your patches.
> > 
> > Best Regards,
> > 
> > Marcus Wilson
> > 
> > 
> > 
> > On 10/11/2007, at 10:35 PM, korgpolyex800 wrote:
> > 
> > > Jon,
> > >
> > > I did a google search on "NTE185 replacement" and "NTE254
replacement"
> > > and got plenty of hits where you can get those transistors.
> > >
> > > Let us know how you progress.
> > >
> > > Mike.
> > >
> > > --- In korgpolyex@yahoogroups.com, "Jon" <shonokij@> wrote:
> > > >
> > > > Hi!
> > > >
> > > > New to the group and proud owner of a broken Poly 800 MKII!
> > > >
> > > > The guy who owned it before me tried to restore it, with poor
> > > results (I think his plan was to
> > > > cover it with solder and pray it works afterwards.. it didn't!).
> > > >
> > > > I've cleaned his mess up. But I'm missing Q1 and Q18 looks kinda  
> > > abused.
> > > >
> > > > Since Q1 - B744 is no longer in production. It's replaced by
NTE185
> > > - hard to get for me and
> > > > expensive. And it's the same with Q18 - B794 replaced by NTE254.
> > > >
> > > > So I was wondering if you guys have any suggestions for other
parts
> > > i could exchange Q18
> > > > and Q1 with?
> > > >
> > > > Thanks!
> > > >
> > > > //Jon
> > > >
> > >
> > >
> > >
> >
>