Multimeter 1K resistance block to measure the speaker only resistance and no sound
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The multimeter is divided into pointer multimeter and digital multimeter two kinds of digital multimeter to measure the horn is to measure the horn is not good or bad, it can only measure the line through the sound, not pass on the sound, it is best to use the pointer multimeter resistance l ohms file to collide with the horn input line, that is, the red pen, black pen to collide with the horn of any of the input line, the horn to hear the sound of the click, prove that the horn is good, and vice versa is the horn! bad.
There is also a way to use a 1.5V battery, the positive terminal connected to a line, the negative terminal connected to a line, casually connected to the input line of the horn to collision, hear the click is good, and vice versa, the horn is bad, the above two methods are the best way to judge the horn is good or bad. As for the multimeter 1K resistance block to measure the horn, only resistance, no sound, do not see the horn is good.
