Let's see...
I purchased my DSI MEK late in 2004.
In 2009 the "glitch" emerged. You know the one where the parameters would slip out of place.
I was alerted to this by DSI techs saying I could convert back to PE rather than the current infinite knob tweakage.
... or they would send me enough De-Oxit to remedy the issue, albeit temporarily.
The De-Oxit worked and I was trouble free for almost 2-years!
In 2011 I moved to Florida and the MEK seemed to get worse with humidity.
I bought another can of de-oxit and it seemed to do the trick.... 6 months later, more De-Oxit!
I routinely took this thing apart to keep the glitch away. It seemed to work but was predictable which knobs or parameters would be on the fritz.
The glitches got worse. So much so that De-Oxit and other brands of contact cleaners didn't do a damned thing.
The knobs are useless. Within minutes of switching on, it is out of tune, envelopes go wacky, and trying to reset makes me reach for a hammer.
Here we are, 15 years after the initial purchase.
My option was - junk the POS! Sell it for Parts and just buy a new monosynth or dig up a Used Kawaii K3 somewhere.
I decided that the Used K3 cost as much as my original K3 in 1988 ($400) and when the MEK is working it really is great machine.
I called DSI they said $225 for the kit plus shipping. That and a purchase of a soldering kit (this should be fun) will bring the MEK back in good standing.
Today the upgrade package arrived.
It's like playing the game "Operation!" ... but for keeps!
Just remember not to solder the funny bone to the bread basket.
I will update the board with the progress on updating the glitchy board with the updated boards.
Video of the process will be forthcoming.