Today I am going to tell you about a small smd trick.

 Today I am going to tell you about a little trick. Don't blame and laugh, expert friends. That trick is not scientific. But our beginner friends will find this trick annoying until they reach a certain point. First of all, what I am saying is not applicable everywhere. It is not correct everywhere. But a circuit is often like this, so it saves some time and makes it convenient.

The trick is this

Now most circuits come with SMD parts. These are not without small cases that are invisible to the eye. Also, some devices look the same and have no similarity. The values were indicated by very small marks, but they were hardly visible to the naked eye. Although modern equipment is available to check such values, the use of the equipment is time-consuming when checking a large number of devices in search of a fault.

SMD resistors, capacitors, fuses, inductors and other devices that are different from each other in terms of functionality look almost identical to the naked eye.

In most cases, errors in circuits like mobile phones occur in the protection systems used as fuses. In such a case, the trick I mentioned will be useful to easily identify the device and identify the capacitor.

My friends all know that in most cases capacitors are connected to other devices at one end and the other end is connected to negative power. We can use this relationship to identify the capacitor with the help of a multimeter. Since the negative connection of the circuit is everywhere, take the multimeter to the buzzer and place one probe on the negative connection and the other probe on the two terminals of the device to be tested. If the buzzer rings at one terminal, it is most likely a capacitor.

NB

This is not a 100% scientific method