Discussion about the Korg PolySix synthesizer

Ha!

Just don't let anyone ever smoke near it! Only joking! I had a very 
intermittent Polysix keyboard in a while back and no end of using IPA 
would make a great deal of difference to the contacts. I ended up using 
this stuff:

http://uk.rs-online.com/web/search/searchBrowseAction.html?
method=getProduct&R=2638089

This is, used in the right amounts, seems to be a good solution for 
cleaning both the contacts and PCB pads. It's the type of thing you 
would normally use on high voltage switch gear and the such like. The 
keyboard is now still working about 5 months after it was last 
serviced. I think, like you have noted, sometime you just need 
something a little stronger than IPA. In this case it is a trade off 
between something that works without causing any damage or so strong it 
starts dissolving things. 

I wonder if we took a set of these contact pads to a component 
manufacturer and asked then to build a replica what the minimum 
production run would be to make it a viable task. If we had 10,000 made 
I'd bet they would all sell!

Cheers,
Andy


--- In PolySix@yahoogroups.com, "wasteking1" <wasteking1@...> wrote:
>
> the last time i cleaned my key contacts i used alchohol and a q-tip, 
> but the results didnt last and were inconsistant. Some notes 
> were 'sluggish',almost had a delay, others had to be hit multiple 
> timrs......   So I recently cleaned them again, this time using 
LIGHTER 
> FLUID  (ronsonal)  and a q-tip. I was very careful not to get the 
fluid 
> on the laquer of the pc-board, Interestingly, i got a black residue 
> from many of the round magnets on the q-tip,(but not all) .  i NEVER 
> got any signs of  residue using alchohol. Now the keys work great, 
all 
> instant contacts, no sluggish response. Perhaps this stronger solvent 
> is more effective?  seems that way to me.
>