What if you turn on your TV, and there's no picture? You only see blurry lines. Who can fix your TV set? Your parents can call an electronic service technician. Electronic service technicians (ESTs) repair all kinds of electronic gadgets. They can work on TV sets, DVRs, and microwave ovens. They can fix stereos, computers, and many other gadgets. Would you like to be an EST? If so, you would need to be good at solving problems. To fix a broken TV, an EST must find the source of the problem. Then he or she must know how to fix it. You would first need a high school diploma. ESTs must understand electricity .....