| 摘要 |
<p>PURPOSE:To optionally select an optional source by a timer by mounting a switch means selecting button and a timer setting button on a keyboard. CONSTITUTION:The switching position of a movable contact 1f in a selector 1 is controlled by a selector control part 2 and a CPU 3 inputs a control signal from a keyboard 4 and a photoamplifier 5 or the like for executing photoelectric conversion by receiving control light from a remote control transmitter 6 and executes prescribed processing. A time display part 7, the photodetecting part of the amplifier 5, the select button for selecting input terminals L1 to L5, and a timer button group for setting a timer are arranged on a panel face. When the select button is depressed, an input terminal is selected and a selected source out of the sources connected to the input terminals L1 to L5 is outputted to an output terminal side. Consequently, an optional source can be selected from optional time up to another optional time by setting up the timer and outputted to the output terminal.</p> |
