Cellphones, TVs, vehicles, streetlights, and a plethora of other items rely on circuit boards, which is why a failure may be highly disruptive. Circuit boards fail for a variety of reasons, and they are linked to common factors such as moisture, heat, and dirt.

Modern TVs consist of several main components: a display panel (or screen), a receiver, speakers and sound amplifier, a video processor, a power supply and various input and output connections. The display panel is the most visible part of the TV, where photos and videos are displayed.