Korg Poly800/EX800 Users

Hmmm... I wondered because the previous owner did all kinds of dodgy 
wiring on the thing. I have it side by side with another Poly800, and 
that one doesn't have the jumper. It's probably a newer version, I 
assume. Also, there's an array of LED's on my board, and on the parts 
board, it's just regular diodes. I know it's the same thing really, 
it's just neat to see electronic idiosyncracies of 2 "identical" 
boards. 
-Mike Walters
www.mysterycircuits.com

--- In korgpolyex@y..., trip@b... wrote:
> 
> Calm down, it's on my Poly Mk-1 as well. It most likely should be 
there.
> 
> The chip is an 80c85 processor, there isn't much that can be modded 
to that. 
> Chances are the designer of the pcb board forgot a trace and they 
had to
> add one that way after the boards were made, or that there simply 
was no
> way to route the trace and it was added that way.
> 
> Basically, it should be there.
> 
> 
> On Fri, Nov 22, 2002 at 01:38:54AM -0000, Mike Walters wrote:
> > I've owned this Poly800 for 10 years, and I noticed the first 
time I 
> > opened it there was a jumper wire soldered between pin 20 and 22 
on 
> > IC24. The chip is smudged, but looks numbered MSM80085ARS 3924. 
What 
> > kind of mod might this be?!? I didn't do it!!
> > 
> > -Mike Walters
> > www.mysterycircuits.com
> > 
> > 
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