“Five identification methods for electronic components.

Firstly, identifying by appearance.

Recognize the appearance of various electronic components to correspond to their circuit symbols in circuit diagrams.

Secondly, identifying components on circuit boards.

When troubleshooting, it is necessary to establish a logical troubleshooting circuit based on the circuit diagram & find out the electronic components that need to be checked on the circuit board. Component identification during the repair process is difficult for beginners but is very important.

Thirdly, identifying circuit symbols.

Each electronic component in the circuit diagram has a corresponding circuit symbol, it is the code for the component show in the circuit diagram.

Fourthly, identifying pin functions and pins.

Electronic components have at least two pins, and some have a few more. Each pin has a specific function and cannot be replaced by others. Each pin must be identified. The image shows a resistor with many pins, and some electronic components have polarized pins, which also require positive and negative pin identification.

Finally, identifying component models and parameters.

Each electronic component has nominal parameters, such as the resistance value and tolerance of a resistor, and its Part number. The electronic components is very importation and help full to local a correct part.