source:power adapter Popular:adapter release time:2021-11-11 09:16:02 Article author:sznbone
1. Static observation.
Observe the distribution of the components in the circuit, identify the characteristic components, and determine the key inspection points during the maintenance through observation. Sometimes, some obviously damaged components can be found for the faulty power supply, so as to lay a good foundation for repairing as soon as possible.
2. Measure resistance.
For the circuit connection method that is not easy to see clearly, the resistance measurement method is used to clarify the connection and direction and then the circuit structure, and at the same time grasp the resistance value of some key points 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 Ground, connect the red test lead to the test point. The digital multimeter uses the DC voltage file, the black mark is grounded, and the red meter is connected to the test point.
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