| 摘要 |
PROBLEM TO BE SOLVED: To surely switch a mode and to improve operability by pressing another button within a prescribed time, after depressing one button of an operation panel and switching the mode. SOLUTION: Plural operation key buttons are arranged on a remote controller, and A, B and C buttons are used concurrently as mode switching buttons. In the case of switching an operation mode, after depressing the A button, the B button is pressed within a prescribed time. Also, by allocating another mode changeover to the C button, the mode changeover of a purpose differing from the B button is performed. That is, clock setting is allocated to the B button, timer setting is allocated to the C button, and optional mode changeover is made possible corresponding to the desire of a user. Thus, a failure that the mode cannot be switched due to the difference in a timing generated at the time of switching the mode by simultaneously depressing the plural buttons is dissolved and usability is improved. Also, by allocating switching modes to the plural buttons, mode selection becomes clear and erroneous operations are prevented. |
