10 views Yuda Electronic (HK) Technology Co.,Limited. 2020-07-29
The circuit in the power adapter is intricate and complicated, among which the electronic components, circuit structure, basic working principle, etc. are the most basic knowledge. How to detect the power adapter?
1. Static observation.
Observe the distribution of components in the circuit, identify the characteristic components, and determine the key inspection points during maintenance through observation. Sometimes, some obviously damaged components can be found for the faulty power supply, so as to lay a solid foundation for repair as soon as possible.
2. Measure resistance.
For the circuit connection methods that are not easy to see, the resistance measurement method is used to clarify the connection and the direction and then the circuit structure. At the same time, the resistance value of some key points is grasped to provide reference data for future maintenance.
3. Measure the voltage.
Under the condition of power-on, measure the voltage of some key points and grasp the first-hand information of maintenance. The method of voltage measurement is: DC voltage range for pointer multimeter (select which range to use according to the specific object value) black test pen Connect the red test lead to the test point. The digital multimeter uses DC voltage, the black mark is grounded, and the red meter is connected to the test point.
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