How to repair the pointer multimeter when it burns (GVDA Digital multimeter)
Hello, I am glad to answer your questions. The electrical barrier damage of the multimeter is generally caused by the wrong measurement of the voltage with the electrical barrier. The damaged components are generally the resistors on the relevant resistance gear. You can disassemble the multimeter and look at it. Generally, you will see that the color of the resistance on the gear where the voltage was measured with the resistance gear has changed. Just change the resistance. . How to repair the multimeter The repair method of the pointer multimeter is as follows: 1: If the multimeter is damaged by accidentally hitting the wrong gear, you can generally check whether the fuse in the multimeter is blown. If it breaks, just replace it. If it doesn't break, it's a circuit problem. It is generally repaired like this: first open the multimeter, put the gear to the gear when you burned out, and then check whether the resistance on the gear is damaged. If it is damaged, just replace it. [Because the resistors in the multimeter are all non-standard resistors, and they are all high-precision resistors with 5-color rings, it is difficult to buy them. You can use series and parallel methods to get the required resistance value], if it is not good, it is generally The meter head was damaged by overload.
