With the development of society, the electronic weighbridge has developed rapidly and has been widely used. So, how to repair the electronic weighbridge? Next, Guangdong Lidong Electronic weighbridge manufacturer Let me introduce you in detail.
（1） Short circuit and open circuit method
The short circuit method is to short-circuit some parts of the circuit. The electronic weighbridge is then tested by an oscilloscope or a multimeter to identify the fault point. The open circuit method is to disconnect some parts of the circuit, and then measure the resistance, voltage or current through a multimeter to identify the fault point.
（2） Intuitive method
There are many components on the main circuit board of the electronic weighbridge, and many problems are caused by short circuit, open circuit, poor contact of plug out, open welding of component pipe corner, etc. Therefore, when the pricing scale shows defects, you should first check the circuit board with intuitive feelings: seeing, listening, smelling, touching, etc.
（3） Voltage measurement method
The electronic weighbridge compares the measurement of the operating voltage of the circuit components and each corner of the chip with the normal value, and the place where the voltage changes greatly is the place where the problem is.
（4） Comparison and substitution method
When checking the defects, the electronic weighbridge can be compared with the defective scale by virtue of its appearance, so that the defective points can be found out quickly. For other components such as sensors, circuit boards, power supplies and keyboards prepared in the operation, if it is suspected that a component such as sensors, circuit boards, power supplies and keyboards is damaged, replace it with a prepared component, and then investigate whether the results are changed. If it appears normal, it is clarified that the original component is in doubt. The comparison and substitution methods can quickly and accurately identify the fault points.
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