Casio MA150 User Guide - Page 12

Power Supply This keyboard can be powered by current from a standard household wall outlet (using the specified AC adaptor) or by batteries. Always make sure you turn the keyboard off whenever you are not using it. Using batteries Always make sure you turn off the keyboard before loading or replacing batteries. To load batteries 1. Remove the battery compartment cover. 2. Load 6 C-size batteries into the battery compartment. • Make sure that the positive (+) and negative (-) ends are facing correctly. C-size batteries 3. Insert the tabs on the battery compartment cover into the holes provided and close the cover. The keyboard may not function correctly if you load or replace batteries with power turned on. If this happens, turning the keyboard off and then back on again should return functions back to normal. Important Battery Information I The following shows the approximate battery life. Manganese batteries .......... 5 hours* * The above value is standard battery life at normal temperature, with the keyboard volume at medium setting. Temperature extremes or playing at very loud volume settings can shorten battery life. I Any of the following symptoms indicate low battery power. Replace batteries as soon as possible whenever any of the 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 high volume • Sudden power failure when playing at high volume • Flickering or dimming of the display when playing at high volume • Continued sound output even after you release a key • A tone that is totally different from the one that is selected • Abnormal rhythm pattern and Song Bank play E-10 MA150_e_08-14.p65 Page 10 274B-E-012A 03.10.8, 10:45 AM Adobe PageMaker 6.5J/PPC