Electronic Board That Does Not Have Components’ Label
If you are repairing consumer electronics generally you will find that most of the board have label besides each components. For example, a resistor would be labeled as “R”, Transistor as “Q”, Capacitor as “C” and so on. With the label/location it would be easier for us as electronic repairer to identify the type of components on the board. A transistor consist of 3 legs and a dual Schottky diodes also have 3 legs. If with board location we will easily know that the “Q” is for transistor and “D” is for diode or Schottky diode. However in certain board design there is no marking beside the components as seen from the above photo.
To some experience technicians, they would easily know the components is belong to which type by looking at the physical appearance and the part number. To beginners or to those who is just starting out, they will have a hard time to differentiate the components unless they have someone to refer to or doing their own research by comparing the components photo. By looking at the photo to do you know what component is that?