When I found this used Roland Jupiter-X for about $500 under market value, I knew it had to come home with me. Outwardly, it appeared to be in great condition, with just a few scratches on the front panel. However, upon getting it home and spending more time with it, A couple of issues started to rear their heads. The first issue was a single very inconsistent key that required a very hard press to activate. The second was a creeping odor of cigarette smoke that seemed to worsen the more I played the keyboard. I contemplated my options. I could get a refund, but I'd struggle to find a better replacement without forking over a lot more money. I could seek a professional repair, but it would be costly. Or, I could try and remedy these problems myself. Taking matters into my own hands, I began dismantling the keyboard. I had two goals in mind: investigate the key contacts, and clean as many surfaces, both inside and out, as I could to try and reduce the smoke odor. Thankfully, as I got into the key contacts, a very clear culprit emerged: a bug had made its way inside and became flattened on the key contact. A pair of tweezers and a quick wipe with isopropyl alcohol later, and it was as good as new. Unfortunately, the smoke remediation wouldn't be quite so straightforward. After a complete teardown, I scrubbed the main metal case with dish soap. I took all the keys out and thoroughly cleaned them with rubbing alcohol. I wiped every button, knob, and panel. It helped, but not as much as I had hoped. I researched what other options I had. Some people suggested an ozone generator, but that is quite an investment for a single item. I settled on Ozium, a spray that works on a similar mechanism to ozone, oxidizing odor particles and reducing the smell. I doused the pieces of the synth in Ozium and placed them in plastic bags, reapplying once every 24 hours for 3 days. While not perfectly eliminated, it did help a lot, and I reassembled the synth. I think the hassle was still worth the savings, and I learned a lot about the way it works and the way it was made through this process. To me, that is extremely valuable. Since then, the Jupiter-X has become the centerpiece of my music studio. It is an incredibly versatile machine, and it's dressed in the handsome visual design of the legendary jupiter-8.