| 摘要 |
PURPOSE:To provide the electronic musical instrument which can operate and retain storage for a long period of time without using any backup battery and generates no broken sound even in case of a voltage deficiency. CONSTITUTION:The electronic musical instrument is equipped with a measuring means 4 which measures the voltage of the power source, a block control means 5 which divides the inside of the electronic musical instrument into plural blocks and performs operation stop control at every block, and a control means which controls the block control means 5 according to the output of the measuring means 4 to stop only the operation of a part of blocks and also controls a sound volume control means according to the output of the measuring means 4 so as to decrease the sound volume according to a drop in the voltage. |
