Professional maintenance personnel of electronic scales must be able to use the measuring instruments correctly and master the basic repair methods of electronic scales on the basis of familiarity with the operation and structural principles of the pricing scale. Here are three commonly used troubleshooting methods:

1. Voltage measurement method

The electronic scale compares the circuit element and the working voltage of each tube corner of the chip with the normal value. The place where the voltage changes greatly is where the fault is.

2. Intuitive method

There are many components on the main circuit board of the electronic scale, and many failures are caused by short circuits, open circuits, poor contact of plug-outs, and corner welding of components. Therefore, when the electronic scale fails, you should first check the circuit board with intuitive feelings: sight, hearing, smell, touch, etc.

3. Comparison and substitution

During the fault check, the electronic scale can be compared with the faulty scale with the help of the meter to detect the fault point quickly. In addition, if the sensor, circuit board, power supply, keyboard and other parts prepared during the work are suspected to be damaged, replace it with the prepared part, and then observe whether there is any change in the results. If it is normal, it means there is a problem with the original component. Comparison and substitution methods can quickly and accurately determine the fault point.

For details, please consult: electronic scale factory.