RA-90: Checking the ROM version May 24, 2023 03:58 Updated Follow The following procedure can be used to check the ROM version: 1) Power on holding SYNC/START. Related articles RA-90: Using the GS / GM / General MIDI or Sound Canvas mode. D-5, D-10, D-20: Using a RAM Card to Save and Load Settings JV-80, JV-880: Comparable Sound Module E-30: Technical Specifications