>Hummm, Sounds like something to point out to Louis Rossmann. If you bought it, you own it. You should be allowed to replace parts and if they are doing something like that it should be pointed out and reverse engineered. Korg is a Japanese synth maker so I don't think Louis will be very effective there. Also, musicians don't want to DIY their own repairs. They will pay top $$$ to get their shit repaired or replaced if it means they can keep on doing there job without a hassle. While I personally buy a lot of gear that is broken and repair it myself, the custom chips and other components you can't buy is more likely going to make repairs difficult or impossible. I've never had to replace a microprocessor or microcontroller in any gear so that's probably the least likely thing to fail anyway.