Roland Juno Di Service Manual Work May 2026

The official Roland JUNO-Di service manual is structured to provide technicians with everything from high-level specifications to component-level circuit diagrams. Based on standard Roland service documentation for the JUNO series, here is the full content and structure you would find: 1. Specifications

1. Photograph everything. Before removing a cable, take a photo. The manual’s drawings are fine, but real-world wire routing matters.
2. Use a magnetic mat. Keep screws organized by region (left side, right side, etc.).
3. Check voltages first. If the unit doesn’t power on, consult the manual’s power section before disassembling the keybed. 90% of "dead" synths are a faulty wall wart or a loose DC jack.
4. Beware of static. The Juno-Di’s CPU is sensitive. Touch a grounded metal pipe before touching the main board.
5. Do not lubricate keys randomly. The service manual explicitly states: "Grease is only applied to the hammer pivot points in weighted keyboards. The Juno-Di’s synth-action keys require no lubrication. Grease will attract dust."

References

Juno-Di: Restoring the Factory Setting. - Roland Corporation roland juno di service manual work