Making sure their team meets its targets. Visually inspect the printed circuit board(PCB) for obvious problem such as overheated components or bad connections. Components are mounted on a non conductive board and connected with small pathways. Electrical components across the board to function by passing through electricity. A standard PCB in its most basic form is a plastic board covered in fiberglass. PCB for any faults or errors which could cause the board to malfunction. SMT testing is important because it helps identify defects and faults.