How to overhaul industrial displays when there is always a problem with electronic products:
1. Observation method. As the name implies, it is intuitive to check whether the components are burnt, damaged, deformed, discolored, broken, and the lamp is not bright after the current is turned on. These problems are often the faults or closely related to the faults. Quickly identify the problem and repair the industrial display.
2. Knocking method. This is also one of the most effective ways to troubleshoot industrial displays, especially for malfunctions caused by poor contact. The method is as follows: when the insulator is energized or not, the parts that may be problematic are tapped and pressed, and the faults such as the false soldering and the poor contact can be easily found.
3. Replacement method. The replacement method is a practical and quick maintenance method. When you are not sure which component to use, you can replace it and replace it with a good component. If the fault is eliminated, it will prove that the original component has a problem. This is especially true for components that are inconvenient to measure.
3. Current measurement method. Measuring current is one of the basic methods of repairing industrial displays. It is mainly used to measure the load current and operating current of transistors and integrated circuit blocks to detect the integrity of integrated circuits, transistors and their power supplies. As long as the measured load current of the transistor or integrated circuit is normal, it can be concluded that the operating state of the circuit is substantially normal. On the other hand, if the current varies greatly from the normal value, it means that there is a problem with the circuit, and it is possible to prescribe the right medicine and carry out key inspections.