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Traduction de l’étape 13

Étape 13
To begin, make sure no current is running through the circuit or component you want to test. Switch it off, unplug it from the wall, and remove any batteries. Remember that you'll be testing the resistance of the entire circuit. If you want to test an individual component such as a resistor, test it by itself—not with it soldered in place!
Testing Resistance
  • To begin, make sure no current is running through the circuit or component you want to test. Switch it off, unplug it from the wall, and remove any batteries.

  • Remember that you'll be testing the resistance of the entire circuit. If you want to test an individual component such as a resistor, test it by itself—not with it soldered in place!

  • Plug the black probe into the COM port on your multimeter.

  • Plug the red probe into the VΩmA port.

开始之前,请确认你要测试的电路处于非工作状态。请先将设备关机,拔掉电源插头并且卸下所有电池。

请注意这个测试出来的电阻值是整个回路的电阻值。如果您需要测试单一元器件例如电阻,请将该元器件拆下测试——不要在它仍在电路板上的时候测试

将黑色表笔插入您的万用表上标有COM字样的插孔

将红色表笔插入您万用表上标有VΩmA字样的插孔

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