Early version battery mod?
2011-08-31 by polyprelude
Hi I havnt found any definitive info on how to do the backup battery mod in an early version (without solder tabs) Can anyone give me some more info or a link please? Cheers, Michael
Thread
Early version battery mod?
RE: [korgpolyex] Early version battery mod?
2011-09-01 by backshall1
Hi Michael, There isn't really any easy way to put a battery holder in the normal place on those old boards. I usually put a CR2032 holder way over on the little board with 3 trimpots, over beside the C cell holder. There is already one little hole drilled in it on the far side of the trimpots. I just measure the right location for another hole, drill it, stick the battery holder in and bend the solder tabs so it doesn't fall out. It needs to be a very, very small hole. So, here is how I do it: 1 - Remove the main board. 2 - Remove R1 and D1 (in the corner near where the A/C adapter plugs in). 3 - Remove the little board with the 3 trimmers and drill another hole for the battery holder. 4 - Put the battery holder in and solder black and red wires to it. (red is positive). 5 - Attach the other end of the wires to the holes where D1 came from. (red near the edge of the board and black near the "D1" label) Stick in a new CR2032, reload your patches, and you should be all set. Don Backshall _____
Show quoted textHide quoted text
From: korgpolyex@yahoogroups.com [mailto:korgpolyex@yahoogroups.com] On Behalf Of polyprelude Sent: Wednesday, August 31, 2011 7:30 PM To: korgpolyex@yahoogroups.com Subject: [korgpolyex] Early version battery mod? Hi I havnt found any definitive info on how to do the backup battery mod in an early version (without solder tabs) Can anyone give me some more info or a link please? Cheers, Michael
Re: Early version battery mod?
2011-09-02 by polyprelude
thanks! it was quite easy, much appreciated. now for the fm800, and soon hawk800 :) --- In korgpolyex@yahoogroups.com, "backshall1" <backshall1@...> wrote:
Show quoted textHide quoted text
> > Hi Michael, > > There isn't really any easy way to put a battery holder in the normal place > on those old boards. I usually put a CR2032 holder way over on the little > board with 3 trimpots, over beside the C cell holder. There is already one > little hole drilled in it on the far side of the trimpots. I just measure > the right location for another hole, drill it, stick the battery holder in > and bend the solder tabs so it doesn't fall out. It needs to be a very, very > small hole. So, here is how I do it: > > > > 1 - Remove the main board. > > 2 - Remove R1 and D1 (in the corner near where the A/C adapter plugs in). > > 3 - Remove the little board with the 3 trimmers and drill another hole for > the battery holder. > > 4 - Put the battery holder in and solder black and red wires to it. (red is > positive). > > 5 - Attach the other end of the wires to the holes where D1 came from. (red > near the edge of the board and black near the "D1" label) > > > > Stick in a new CR2032, reload your patches, and you should be all set. > > Don Backshall > > > > _____ > > From: korgpolyex@yahoogroups.com [mailto:korgpolyex@yahoogroups.com] On > Behalf Of polyprelude > Sent: Wednesday, August 31, 2011 7:30 PM > To: korgpolyex@yahoogroups.com > Subject: [korgpolyex] Early version battery mod? > > > > > > Hi I havnt found any definitive info on how to do the backup battery mod in > an early version (without solder tabs) > > Can anyone give me some more info or a link please? > > Cheers, Michael >