电池使用5号电池，在使用小车前要检查是否安装号电池，是否有正常电压输出

电池使用5号电池，在使用小车前要检查是否安装号电池，是否有正常电压输出。更换电池时要注意正负极。
教学板底有个三位开关，当开关拨到“0”位时教学板电源断开，设备处于关闭状态。如图3-7
拨到“1”位，打开电源，检查教学板上红色LED电源指示灯是否变亮。如果没有，检查电池和电池盒接线是否接触正常。如图3-8
拨到“2”位电源不仅给教学板供电，同时给伺服电机供电。

結果 (中文) 3:

Battery 5 battery, in the use of the car to check whether the installation of the battery, whether there is a normal voltage output. When changing the battery to pay attention to the positive and negative pole. The bottom of the teaching board has three switches, when the switch to the "0" position when the power of the teaching board is disconnected, the device is in a closed state. As shown in figure 3-7
, dial "1" to turn on the power and check the red LED on the board. If not, check the battery and battery box connection is normal. As shown in figure 3-8
to the "2" bit power supply not only to the teaching board, but also to the servo motor.