Before the printed circuit boards came into existence components in a circuit were manually soldered to wires and fixed on the circuit board. This makes the process of completing a circuit board very time-consuming. Each component had to be soldered manually. With the printed circuit board, the copper tracks are already embedded on the circuit board. Only the components need to be soldered to the board to complete the circuit. The fixing and soldering of the components are also done by machines. But the performance of the circuit boards must be tested and this is where the Medalist i1000 comes in as the best test equipment available. Understanding In-Circuit Testing In-circuit testing is performed on PCBs to know whether all the components on the board are functioning properly. Sometimes there can be connection failure between the components. Some components may not be connected properly. There may even be wrong components that are attached to the printed circuit board.