Otherwise technicians build the equipment based on discussions they have had with other people. While building, technicians may use hand tools, power tools, and soldering irons. They attach wires and connectors to form circuits and connect parts to power supplies, switches, and junction boxes. Once the model is built, technicians test it. They evaluate the performance and reliability of the model and analyze the resulting data.
Technicians adjust and change the circuitry and monitor the change in performance.
Later, they write technical reports about their findings. Technicians may discuss their results with electrical engineers . They may suggest changes in the layout and assembly of the product. Some electronics technicians repair and service broken equipment. They check the wiring for defects and replace broken parts.