Sharp R-1520LK Supplemental Service Manual page 7

NOTE: Some one-touch cooking features such as "Add a Minute" are disabled after three minutes when the oven
is not used. These features are automatically enabled when the door is opened and closed or OFF/CLEAR
button is pressed.
LIGHT HI/LO
FAN HI/LO
STOP
CLEAR
START
MINUTE PLUS
7
R-1520LK
R-1520LW
R-1520LQ