Korg Poly800/EX800 Users

This poly 800 seems to function just fine on batteries but when a 9
vdc converter is plugged in it goes dead. I figured it was the jack
and replaced it after desoldering the original and replacing it with a
clone. Same problem. Any ideas would be greatly appreciated!

Thanks!

Hey Marcus,

Have you built your two HAWK-800 kits yet?

You were one of the first to jump in but you've not made a single note
to let me know if you've built them.

Mike.

yes it's tip positive. 
--- In korgpolyex@yahoogroups.com, Marcus Wilson <JB@...> wrote:

>
> check the polarity of the power plug, it must be tip positive
> 
> if its tip negative, it will disconnect power from the battery and  
> apply inverted voltage to the input, theres a zener in there to offer  
> some protection so you
> dont fry everything, but its not a good thing to keep juiced up with  
> incorrect polarity
> 
> best regards,
> 
> Marcus Wilson
> 
> 
> On 25/08/2008, at 6:16 PM, Dennis wrote:
> 
> > This poly 800 seems to function just fine on batteries but when a 9
> > vdc converter is plugged in it goes dead. I figured it was the jack
> > and replaced it after desoldering the original and replacing it with a
> > clone. Same problem. Any ideas would be greatly appreciated!
> >
> > Thanks!
> >
> >
> >
>

On Tue, 26 Aug 2008, Dennis wrote:

> yes it's tip positive.
=============

the correct voltage?

DC?

beyond that, you'll need some time on the bench with multi-meter.


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