--- In
DW8000@yahoogroups.com, Russell Rose <russrose@m...> wrote:
> Holy Smokes, I took a chance before I got this message and just
removed R70 and replaced it with a Diode. It worked, I'm able to
store programs and it holds them in memory. Thats not to say,looking
at your email that doing it my way wont have any long term affects.
Varta makes Nickel Metal Hydride batteried which are recharable.
Wondering if this wouldn't be an easier solution?
Any thoughts
>
A wee bit more to it than that.
> According to Korg service bulletin for poly-61.
> 1) remove R70(470 ohm)
> 2)Remove transistor Q10
> 3)Rep-lace nicad with lithium battery in same location
> 4)solder one 1N914 diode(or equiv) at location R70 and and another
> between Emitter and collector of Q10( cathode to C and anode to E)
> 5) if the CPU board is KLM475, change R146 to 2.2k ohm.
> if Cpu board KLM506 disregard R146
> pretty sure this procedure is accurate from more than one
experience.
> the diode at position R70 by the way, mounts on the PCB with its
anode
> pointecd towards Q10, cathode pointed towards(not connected) the
> positive end of battery.good luck. Russ
>
> On Oct 26, 2005, at 9:51 PM, lnz2166 wrote:
>
> > Any one have the proceedure for replacing the NiCad to Coin cell?
I
> > think you need to add a diode and possibly remove a capacitor.
> >
> >
> >
> >
> >
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