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Subject: Re: memory backup battery mod

From: "AARON" <aaron3900@...>
Date: 2012-11-25

Don,

I followed your advice when I did the battery mod on my other Poly-800 and it worked perfectly. It looks slightly better than what I did with the other one, too.

Thanks!

Aaron

--- In korgpolyex@yahoogroups.com, "backshall1" <backshall1@...> wrote:
>
> I haven't ever used extra wire with Radio Shack type battery holders. They
> just need a couple of small modifications. The goal is to get the battery
> holder to sit flat on top of the two chips on either side. The metal contact
> pins on the holder are a bit too close together but they are also a bit
> long, so just bend them out until they reach the solder pads. There are also
> three little plastic "leg" pins on the bottom of the holder. You need to cut
> one of them off to get the holder to sit flat.
>
> Once you have it so it looks like it will sit flat, fill each solder pad
> with solder, then coat the metal pins on the holder with solder, set it in
> place and reheat both solder pads. Done.
>
>
>
> Don B.
>
>
>
> _____
>
> From: korgpolyex@yahoogroups.com [mailto:korgpolyex@yahoogroups.com] On
> Behalf Of AARON
> Sent: Thursday, November 15, 2012 10:40 PM
> To: korgpolyex@yahoogroups.com
> Subject: [korgpolyex] Re: memory backup battery mod
>
>
>
>
>
> Yep. They work, they're cheap, and they're easy to find when it comes time
> to replace them. Besides, I'll probably be selling this machine anyway, so
> it isn't necessary for me to ensure that the battery lasts forever.
>
> Aaron
>
> --- In korgpolyex@yahoogroups.com <mailto:korgpolyex%40yahoogroups.com> ,
> "backshall1" <backshall1@> wrote:
> >I would stick with a CR2032 in a coin cell socket.
> >
> > Don B.
> _____
> >
> > From: korgpolyex@yahoogroups.com <mailto:korgpolyex%40yahoogroups.com>
> [mailto:korgpolyex@yahoogroups.com <mailto:korgpolyex%40yahoogroups.com> ]
> On
> > Behalf Of Gordon JC Pearce
> > Sent: Thursday, November 15, 2012 5:06 PM
> > To: korgpolyex@yahoogroups.com <mailto:korgpolyex%40yahoogroups.com>
> > Subject: Re: [korgpolyex] Re: memory backup battery mod
> >
> >
> >
> >
> >
> > On 15/11/12 19:00, AARON wrote:
> > >
> > >
> > > But isn't that the type of battery that leaked all over my Poly-61 PCB
> > > and made it stop working? :)
> >
> > They're NiCads, and very different construction.
> >
> > > Besides, don't you need a charging circuit for that to work? Does the
> > > Poly 800 have such a circuit?
> >
> > That's what the resistor and diode you remove are. It's a crap charging
> > circuit, but it pretty much works.
> >
> > --
> > Gordonjcp
> >
>