Korg Poly800/EX800 Users

On Saturday 14 July 2012, 21:13:56, Gordon JC Pearce wrote:
> On 14/07/12 20:41, k9k9dog wrote:
> > so, what is the info on this? must i remove that board and
> > somehow open up the switches and clean them? i'd like to sort
> > this out before i attack the mod.
> 
> Just change them.  They cannot be satisfactorily cleaned up.
> You do not want to be getting all those screws out more often than you
> have to.

I'd have loved to swap them out, but I didn't find any suitable replacements 
about 4 years ago when two of them got so flaky that the synth became almost 
unusable.  So in the end I did take the switches apart and clean them and 
all in all that probably took longer than what swapping them out would have.  
Screws were the least of the problem, we're talking EX-800 here, not 
Poly-800.  You really need to be careful not to break off the retention tabs 
(or at least not all of them, that plastic _is_ old by now) or you won't be 
able to get them back together.  I got everything working again, but you 
should have a backup plan — mine was to rack-mount the whole thing into a 2U 
case and re-wire the frontpanel accordingly.  Which is what I'll likely have 
to do if they ever go bad again because I don't think they'd surveive 
another round of taking them apart.


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

SD adaptations for KORG EX-800 and Poly-800MkII V0.9:
http://Synth.Stromeko.net/Downloads.html#KorgSDada