S-550: Checking the ROM version

Tags: s-550
The following procedure can be used to check the ROM version:

1) Connect the S-550 to a CRT (turn on the CRT).
2) Power on the S-550 while holding #1 until 'Please Insert System Disk' in
3) Insert the system or utility disk.
4) After 'Load next disk?', press DEC/NO.
5) Press FUNC.
6) Press MENU.
7) Press the DOWN (V) cursor button.
8) Press EXECUTE.
9) Press MENU.
10) Press the #1 button.
11) Press DEC/NO twice to display the system program version and ROM program