R-8M: Checking the ROM Version May 24, 2023 05:42 Updated Follow The following procedure can be used to check the ROM version: 1) Hold down CURSOR LEFT (<) and VALUE DOWN (V) while powering up. Related articles R-8, R-8M, R-8mkII: Sound Cards R-8: Initializing the R-8 - Restoring the Factory Settings R-8M: Technical Specifications R-8, R-8MKII: Setting the Unit to MIDI Sync MC-50, MC-50MKII: Differences Between the MC-50 and MC-50 mkII.