Korg Poly800/EX800 Users

I just got my Poly 800 mk1 in the mail today. I got it off ebay so i 
guess i should've expected problems. I set it up with a 9v power 
supply i had lying around(same - and +). Anyways i powered it up, 
turned all the tape stuff off everything worked fine i can switch 
pathces edit params and whatnot, BUT. I plugged it into my guitar amp
(all i have at moment) and the volume was at full and on ANY of the 
presets i get either a sweeping filtery noise(very low volume on 
this) or on some patches if i move the joystick down i get a weird 
wobbly sound that's pretty loud.so i figure that the problemn isn't 
my pwoer supply or my outputs, but what is it?

Hi.........I troubleshoot Electronics probs, for a living.....

 

I'd say first unplug the connection to the Guitar amp and try the Headphones jack...

here you need to listen carefully for the sounds you mentioned.....either they

a.) went away with the Amp connection ..or

b.) still the same noises.....perhaps not as loud.....

 

Well.....does your place have 3-wire Wall Power distributed on all Wall sockets....?

The "Wall_Adapter" for the Korg usually does NOT carry the ground, i.e. the third

wire of the Wall socket, but IF  your Amp DOES.......then the Audio out between the two

forces both to be at the Amps grounding circuit.....whereas the Korg is 'floating' above

ground with no connection to it normally......until you jack the two together.....

 

If there are No grounded Power Outlets, as you find in 'Older housing', then thats another story.....Then if that wasn't bad enough, there is the 'In_Between' of those wall sockets

that are only two-wire, but are still polorized by one slot larger the the other (Neutral)

So, enough already , for this installment......tell me where you stand now....

 

Dan

 



---------------------------------
Do you Yahoo!?
SBC Yahoo! DSL - Now only $29.95 per month!

Wow, both of you guys were right. I started tweaking things and 
noticed that i was able to make some pretty eery pads. Also i think 
Dan was right about the amp, it is ALOT louder through my computer or 
headphones. So either way this is working out. Now..where do i get 
batteries(what kind), cause i know one day i'm going to accidentally 
unplug this thing.

thanks guys





--- In korgpolyex@yahoogroups.com, Dan Brewton <dannobe123@y...> 
wrote:
> 
> 
>  
> 
> Hi.........I troubleshoot Electronics probs, for a living.....
> 
>  
> 
> I'd say first unplug the connection to the Guitar amp and try the 
Headphones jack...
> 
> here you need to listen carefully for the sounds you 
mentioned.....either they
> 
> a.) went away with the Amp connection ..or
> 
> b.) still the same noises.....perhaps not as loud.....
> 
>  
> 
> Well.....does your place have 3-wire Wall Power distributed on all 
Wall sockets....?
> 
> The "Wall_Adapter" for the Korg usually does NOT carry the ground, 
i.e. the third
> 
> wire of the Wall socket, but IF  your Amp DOES.......then the Audio 
out between the two
> 
> forces both to be at the Amps grounding circuit.....whereas the 
Korg is 'floating' above
> 
> ground with no connection to it normally......until you jack the 
two together.....
> 
>  
> 
> If there are No grounded Power Outlets, as you find in 'Older 
housing', then thats another story.....Then if that wasn't bad 
enough, there is the 'In_Between' of those wall sockets
> 
> that are only two-wire, but are still polorized by one slot larger 
the the other (Neutral)
> 
> So, enough already , for this installment......tell me where you 
stand now....

> 
>  
> 
> Dan
> 
>  
> 
> 
> 
> ---------------------------------
> Do you Yahoo!?
> SBC Yahoo! DSL - Now only $29.95 per month!