The electronic hook scale is not working. How to find fault? The repairman must have a certain knowledge of electronic technology and digital circuit to repair the electronic hook scale. Before the hands-on repair, we must first understand the failure and use of the trouble to the user. For example, understand the use of the electronic scale, environmental conditions, the phenomenon of overweight, scale body, instruments have no collision phenomenon, first according to the normal use method, make the scale in the live working state (scale body can not hang on the crane).

1, check whether there is abnormal sound, whether there is alarm, whether there is a regular sound interval.

2, whether the scales or meters have abnormal smell, such as transformers, plastic wires, printing boards, etc., may cause a lot of abnormal smell due to the heating and burning of the circuit.

3, look at the display status of the display, whether the appearance is damaged, whether the components are broken or welded. 4, touch integrated chip and electronic components, feel its temperature is too high, the suspicious components can be replaced directly with a good device, this method is very effective for the whole machine's large current failure phenomenon. 5, the operating electronic hook scale function is normal, the key is flexible, can combine "listen" and "look" at the same time, can quickly reduce the scope of finding the fault, to lay the foundation for the next step.