| 摘要 |
PURPOSE:To decrease the number of keys without deteriorating an input setting function by having correspondence between a key and plural input set contents and selecting properly the input set contents done by a key operation based on the preceding key operation state. CONSTITUTION:A keyboard 6 of an electronic range contains the 1st-15th keys 7a-7o, and two input set contents are displayed with keys 7a-7e, 7m and 7o, respectively. While numerical characters 1-9 and 0 are set and displayed with keys 7d-7l and 7n, respectively. Each key contains light emission display parts 8a-8u of an LED, and two input set keys have two light emission display parts. A microcomputer performs selectively emission of light with food thawing 8a, time 8d, temperature 8f, erasion 8g, present time 8r, etc. when a power supply is applied. Then a time point, the heating time, etc. are set by the numerical character keys, and the corresponding LED is actuated. At the same time, the heating time, etc. are displayed on a display device.
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