E-13Power SupplyImportant Battery Information The following shows the approximate battery life.Zinc-carbon batteries .............................. 2 hours** The above value is standard battery life at normaltemperature, with the keyboard volume at mediumsetting. Temperature extremes or playing at very loudvolume settings can shorten battery life. Any of the following symptoms indicate low battery power.Replace batteries as soon as possible whenever any ofthe following occurs.• Instrument does not turn on• Display that is flickering, dim, or difficult to read• Abnormally low speaker/headphone volume• Distortion of sound output• Occasional interruption of sound when playing at highvolume• Sudden power failure when playing at high volume• Flickering or dimming of the display when playing athigh volume• Continued sound output even after you release a key• A tone that is totally different from the one that isselected• Abnormal rhythm pattern and Song Bank playAuto Power OffThe Digital Keyboard will turn off automatically to preservepower if you do not perform any operation for about sixminutes.To disable Auto Power OffHold down the TONE button while turning on the keyboardto disable Auto Power Off.NOTE• When Auto Power Off is disabled, the keyboard doesnot turn off automatically no matter how long it is leftwith no operation being performed.• Auto Power Off is automatically enabled whenever youturn on keyboard power.SettingsAll keyboard settings are returned to their initial defaultswhenever keyboard power is turned back on after beingturned off by operation of the POWER/MODE switch or AutoPower Off.