Addressing issues like "dead" keys or inconsistent velocity by removing the rubber membrane and cleaning pads with isopropyl alcohol. Firmware Updates:
The Juno-Di uses rubber contact strips (rubber mats) under the keys. roland juno di service manual work
Detailed technical data including polyphony (128-note), power requirements (DC 9V, 1000 mA), and dimensions. Disassembly Procedures: Addressing issues like "dead" keys or inconsistent velocity
The Service Manual lists a "Test Mode" or "Factory Reset" procedure. This is often the first step in troubleshooting software glitches. power requirements (DC 9V
(which shares some structural DNA) is available for free at the Bee.mif Archive