Use the following procedure to check the ROM version of the EM-505:
1) Power on while holding MUSIC STYLE buttons 3, 5 and 7.
2) Release those buttons, then press MUSIC STYLE button 1. The current ROM version of the unit will be displayed on the screen.
1) Power on while holding MUSIC STYLE buttons 3, 5 and 7.
2) Release those buttons, then press MUSIC STYLE button 1. The current ROM version of the unit will be displayed on the screen.