Yamaha Electone EL-27 Owner's Manual page 52

Restoring the Panel Settings:
Turning the Electone off erases all panel settings you have made. When the Electone is turned on, Basic
Registration 1 is automatically selected. If you have made panel settings you wish to keep, save them to
Registration Memory before turning the Electone off. You can, however, restore the panel settings that
were made before the Electone was last turned off.
To do this:
1.
Turn the Electone back on.
2.
While being careful NOT to press any panel buttons
(excepting those in Basic Registration), hold down the M.
(Memory) button and press the D. (Disable) button.
M.
50
POWER
1 2 3 4 5 D.