| 摘要 |
PURPOSE:To display an auto-tuning stop sensitivity state by setting the auto- tuning stop sensitivity and using this setting output to actuate a switching circuit and to light up a display circuit such as LED. CONSTITUTION:The outputs of a microcomputer 8 are produced from a low sensitivity output terminal 25, a medium sensitivity output terminal 20 and a high sensitivity output terminal 15 respectively. Thus the output signals are outputted according to each state of the auto-tuning stop sensitivity. In an output state of low auto-tuning stop sensitivity, a low sensitivity changeover switching circuit 27' is actuated since the terminal 25 is set at a high level. Thus the auto-tuning sensitivity is set at a low level. In an output state of mediu auto- tuning stop sensitivity, the terminal 20 is set at a high level. Then an LED light- up switching circuit 22' is actuated to turn on an LED24. In an output state of high auto-tuning stop sensitivity, the terminal 15 is set at a high level. Thus a high sensitivity changeover switching circuit 17' is actuated to switch the auto- tuning sensitivity. |
