| 摘要 |
PURPOSE:To prevent trouble due to unchanged operation of an electrified unit, which can be operated with an external power supply or a built-in power supply, upon interruption of the external power supply. CONSTITUTION:A built-in battery 1 and an external power supply terminal 4 are connected in parallel such that the external power can be supplied preferentially. Means 6 for detecting interruption of external power supply is provided and stop mode is selected upon detection of external power interruption. |
