How do you use a multimeter to detect damaged electronics or household appliances?
For electronics overhaul, home appliance repair or computer brain maintenance, we all have our own methods and cannot generalise. In general, the multimeter is just a tool, there are many functions (that is, you can measure a lot of parameters), through the skilled measurement of each section of the circuit or the parameters of each component, and its synthesis, to determine where the fault lies. For example, by measuring the voltage of a section of the circuit to determine whether it is working properly; by measuring the resistance of a component to determine whether it is normal; by measuring the capacitance of a component to determine whether it is an open circuit, short circuit or deterioration .... And so on. So the multimeter is just a tool, you DIY fans buy back, you should also bubble various forums, or participate in amateur classes or something to strengthen their own literacy to improve the use of tools. Finally, let's say that the multimeter is like a sword, the power of its play, lies in its owner, there are a few percent of the martial arts (electronic knowledge), you can play a few percent of the efficacy.
What kind of multimeter should I buy if I want to learn electronic maintenance?
In general, just beginners buy a popular multimeter (three-meter, because you can measure voltage, current, resistance at the same time and named) can be, the most used function is resistance, then DC voltage, multimeter additional functions, diode, buzzer function, transistor and capacitance measurement, is also used more, should consider buying a meter with this function. Of course, there are some skilled overhaulers, may have their unique overhaul method, it is another story. Meet these functions, the most cost-effective multimeter for the DT9205A or M890D, which is the standard model, there are some manufacturers called DT9205, DT9205N, DT9205L, DT9205B, DT9205M, in fact, the function is almost the same, it can be said that is a change in the soup, the buyer as long as the function of the recognition, do not have to pay attention to the differences in the model.
