系统上电后，显示提示符P.,按K1进入抢答界面，如果主持人没按K1开始键，选手按动 则视为违规抢答，数码管显示违规选手号，蜂鸣器报警，违规指示灯亮，当主持人按下K1,蜂鸣器鸣一声，开始抢答。　　　　　　　　　　　　　　　　 *

* 最先按下的选手，会显示在数码管上，并开始倒计时，　　　　　　　　　　　　 *

* 如果选手在20秒内回答完问题，并按下K2,蜂鸣器开始报警，结束指示灯亮 如果选手未能在20秒内按下K2,蜂鸣器开始报警，超时指示灯亮 K7为复位键，按下后，再次进入抢答界面-System power on, the display prompt P., press K1 into Responder interface, if the host did not press the start button K1, players press the answer is deemed illegal, digital display irregularities player numbers, buzzer alarm, lights violation When the host pressed K1, buzzer sound, began to answer.* The first press of the players, will be displayed on the digital control and start the countdown,** if players finished within 20 seconds to answer questions and press K2, began to alarm buzzer, indicator lights if the player fails to end within 20 seconds after pressing the K2, start the alarm buzzer, overtime lights K7 is the reset button, press again to enter the answer in the interface