CM-64 Mode
To put your SC-88 Pro into a true CM-64 mode you’ll need to:
- Hold SELECT and press “Instrument <“
- Press ALL to confirm or MUTE to cancel
 
 
SC-55 or SC-88 mode
To put your SC-88 Pro into a true SC-88 or SC-55 mode you need to first enter compatibility mode:
- Hold SELECT and press ALL
- All will start blinking
 
 - With the ALL button blinking, 
- Press the “SC-55 MAP” button enter SC-55 mode
 - Press the “SC-88 MAP” button to enter SC-88 mode
 
 
Execute GM reset:
- Hold SELECT and press “Part >”
- Press ALL to confirm or MUTE to cancel
 
 
Execute a GS reset:
- Hold SELECT and press “Instrument >”
- Press ALL to confirm or MUTE to cancel