| 摘要 |
An electronic device (e.g. an optical disk reproducing apparatus) can be connected to an external apparatus (e.g. a display apparatus) and has a standby state as a power state. The electronic device includes a movable member (e.g. a disk tray) which is provided to be ejectable from and retractable into a body of the electronic device and be movable between an ejected position and a refracted position; a driver which drives the movable member, a detector which detects whether the movable member is at the retracted position, a communication unit which receives various control signals from the external apparatus, a power controller which controls the power state of the electronic device, a controller which controls the driver to locate the movable member to the retracted position when the power state of the electronic device is changed to the standby state by the power controller. The power controller controls whether to change the power state to the standby state according to a result of the detection by the detector, when the communication unit receives a predetermined control signal.
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