Use the following steps to display the operating system version number:
1. While holding EDIT and TONE4, power on the unit.
2. The version number will be displayed following the word "ROM:"
3. Power off the unit and power on again to return to normal operation.
1. While holding EDIT and TONE4, power on the unit.
2. The version number will be displayed following the word "ROM:"
3. Power off the unit and power on again to return to normal operation.