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. > > > > > >
Message
Re: Question regarding backup battery mod.
2008-03-01 by funkymonkeypeter
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