Just in case we have a BK-9 user surfing in here and not visiting the Roland sub-forum, our member Dengizich has posted an entire thread detailing how to replace glitchy sliders on a BK-9, a fairly common problem, and one with no replacement solution from Roland (in fact, they were out of replacement slider boards after only about three years after launch 🤬).

http://www.synthzone.com/forum/ubbthread...mova#Post503880

Kudos for a fantastic job, and a comprehensive and illustrated guide to fixing this by yourself if your soldering skills are decent, or at least disassembly procedure if you want to just give the board and new sliders to a local technician to solder, and avoid the extra cost of him having to do the breakdown and reassembly. It’s a fairly simple procedure with no specialized tools to take out the board and put it back in…