Korg Poly800/EX800 Users

Here's how I ended up replacing the battery to my DW-6000 which has  
the same soldered in battery:

http://www.synthburgh.com/DW-6000/diy/DW-6000-battery_holder_mod.jpg

You can get this board with a battery holder for a CR-2032 from http://www.nkcelectronics.com/battery-holder-board-cr20322032.html 
  for $3.49 and jumper it to the main board with a lot less hassle and  
the ability to replace it again at some point far in the future. -pc


On Sep 11, 2009, at 2:01 PM, Gordon JC Pearce wrote:

> On Fri, 2009-09-11 at 07:06 -0700, Michael Hawkins wrote:
> >
> >
> > If you have five C batteries in the Poly-800, then the patches  
> should
> > stay.
> >
> > But, there is also a location on the main printed circuit board for
> > installation of a lithium battery.
> >
> > On some early main boards, there are no pads for the battery to
> > install onto. But most boards do have the pads.
> >
> > They're right smack in the middle of the main board. Check to see if
> > there's a lithium battery soldered in there.
>
> Since all you need to do is ensure that /CE is high and there is power
> to the chip, it should be easy enough to bodge in the required diode,
> resistor and battery to any model.
>
> Gordon MM0YEQ
>
>
>