The printed circuit boards revolutionized the way electronic equipment was made. The invention of these boards helped in more efficiency and reducing the size of the devices. Printed circuit boards could be produced faster when compared to the hand-soldered circuit boards of yesteryears. This helped to meet the demand for electronic products. The circuit boards are manufactured by a company and send to the manufacturers of the device or appliance. The responsibility of ensuring that the boards functioned properly lie with their manufacturers and it is essential to conduct an in-circuit test for this purpose. Understanding the Need for In-Circuit Testing An i n-circuit test machine tests whether all the components in a printed circuit board are working properly. A PCB has hundreds of components. Apart from this, there are numerous solder connections. If the board has to work properly all these must be perfect. Every component must function as it is expected to. Every solder