Use the following procedure to check the system version on your JUNO-DS61/76/88:
- Press MENU.
- Cursor to "SYSTEM" and press ENTER.
- Use the </> buttons to cursor to the "INFORMATION" tab at the top of the screen.
This screen displays both the system version of the Juno-DS, and also the currently installed expansion sound set.
The latest version of the system program can be downloaded from the following page:
https://www.roland.com/global/support/by_product/juno-ds61/updates_drivers/