Opening the unit, removing the key strips, and cleaning the carbon pills with isopropyl alcohol.
Always perform a "System Backup" to a USB drive before starting internal work. A slip of the screwdriver could lead to a factory reset or data loss. Finding the Manual
The Juno-Di uses a velocity-sensitive synth-action keybed. Dust can settle between the rubber contacts and the PCB. roland juno di service manual work
Hidden button combinations to diagnose internal hardware. Common Juno-Di Issues and Fixes
Cleaning the contacts with specialized electronic cleaner or replacing the micro-switches on the panel board. Opening the unit, removing the key strips, and
A service manual is fundamentally different from the owner’s manual. While the owner's manual teaches you how to make music, the service manual teaches you how the machine is built. For the Roland Juno-Di, this document is vital because it contains:
Diagrams showing every screw and bracket location. Finding the Manual The Juno-Di uses a velocity-sensitive
Detailed circuit paths for the main board, panel board, and power supply.
Because the Juno-Di is often moved for gigs, the 1/4" output jacks can develop cracked solder joints.