Yes, I can confirm that you must remove D1 and R1.
I've also been able to confirm that all versions of KLM-596 from
KLM-596-1 through KLM-596-7 include D1 and R1.
But on versions KLM-596-8 and up (I don't how many more rev's there
are) they do not have D1 and R1 installed at all. In fact, they don't
appear on the board at all.
Mike.
--- In
korgpolyex@yahoogroups.com, "funkymonkeypeter"
<funkymonkey3.14@...> wrote:
>
> Main board ID is KLM 596-4
>
>
>
>
> --- In korgpolyex@yahoogroups.com, "korgpolyex800" <korgpolyex800@>
> wrote:
> >
> > What version of the KLM-596 board is in your synth?
> >
> > KLM-596-?
> >
> > Mike.
> >
> > --- In korgpolyex@yahoogroups.com, "funkymonkeypeter"
> > <funkymonkey3.14@> wrote:
> > >
> > > The square solder pads are in the middle of the main board between
> > > IC18 and IC19
> > >
> > > Thanks.
> > >
> > >
> > > --- In korgpolyex@yahoogroups.com, "korgpolyex800" <korgpolyex800@>
> > > wrote:
> > > >
> > > > Hmm, where are the square solder pads for the battery backup
found?
> > > > What components are close to those solder pads?
> > > >
> > > > Mike.
> > > >
> > > > --- In korgpolyex@yahoogroups.com, "funkymonkeypeter"
> > > > <funkymonkey3.14@> wrote:
> > > > >
> > > > > Yes, both R1 and D1 are present (right by CN9A (C-Cell battery
> > > > > compartment connector to board)).
> > > > >
> > > > > Thank you.
> > > > >
> > > > >
> > > > >
> > > > > --- In korgpolyex@yahoogroups.com, "korgpolyex800"
> <korgpolyex800@>
> > > > > wrote:
> > > > > >
> > > > > > Since you say your board has the square solder islands then
> > I'll be
> > > > > > very surprised if your board actually has an R1 and D1 at all.
> > > > > >
> > > > > > Are you able to find them? If you are, where are they?
> > > > > >
> > > > > > Mike.
> > > > > >
> > > > > >
> > > > > > --- In korgpolyex@yahoogroups.com, "funkymonkeypeter"
> > > > > > <funkymonkey3.14@> wrote:
> > > > > > >
> > > > > > > This is my second Poly-800. The first had a problem
with the
> > > > > > > headphone amp and DC-in jack. This one works great and I
> > > don't want
> > > > > > > to muck it up.
> > > > > > >
> > > > > > > If some one can answer my question I promise not to tell
> > > anyone what
> > > > > > > really happened on 9/11.
> > > > > > >
> > > > > > > So, to cut or not to cut?
> > > > > > >
> > > > > > >
> > > > > > > --- In korgpolyex@yahoogroups.com, "funkymonkeypeter"
> > > > > > > <funkymonkey3.14@> wrote:
> > > > > > > >
> > > > > > > > Regarding the instructions here:
> > > > > > > >
> > > > > > > >
http://analog.no/mods/korg_poly-800_mk-1_battery_backup.htm > > > > > > > >
> > > > > > > >
> > > > > > > > ∗ Open the Poly-800 by removing all screws at the
> bottom.
> > > > > Locate
> > > > > > > > the processor board. This is the large circuit board next
> > to the
> > > > > > > > battery compartment.
> > > > > > > > ∗ In the upper left corner you'll find Resistor R1 and
> > > > Diode D1.
> > > > > > > > Remove these. (Just cut the legs, but leave as much as
> > possible
> > > > > of the
> > > > > > > > D1 legs, see next steps.)
> > > > > > > > ∗ If you have a late revision MK-1 there will be two
> > fairly
> > > > > large
> > > > > > > > solder "islands" in the center of the board. The
battery is
> > > > mounted
> > > > > > > > here. The "island" to the front of the keyboard is ground.
> > > > > > > > ∗ If you have an early revision you wont find
this. The
> > > > battery
> > > > > > > > must then be connected by wires, the plus to the junction
> > > between
> > > > > > > > R1/D1 and the minus to the other leg of D1.
> > > > > > > > ∗ Any 3V lithium with solder lugs can be used as long
> > as it
> > > > > is not
> > > > > > > > to big physically for mounting to the board. A
> wristwatch type
> > > > > (2025,
> > > > > > > > 2032) is fine.
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > I have the model with the solder islands, do i need to
> cut the
> > > > > legs to
> > > > > > > > R1 and D1? Or can I just solder to the islands and leave
> > > > everything
> > > > > > > > else intact?
> > > > > > > >
> > > > > > > > Thank you.
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>