Answer to "Microwave continues to run even when the cooking has finished"Bad sensor/switch within the microwave. Latch body and switch assy. part number DE96-00414A needs replaced. The latch body and switch assembly DE96-00414A comes with the switches that monitor the door position and the latch body that holds the switches in place so the switch is bad causing the unit to not detect the stopped state.
Answer to "How do I ground myself"There's some good advice here but I'd like to add my two cents. In a pinch, you can make your own grounding / bonding wrist strap by stripping off a length of wire. Remove several inches of the stranded wire. From there, fold up some aluminum foil, attach the wire to the foil and wrap the foil around your wrist. Attach one side of the wire to a metal piece of the chassis of the affected device you are working on. Remember, we are looking for your electrical potential to be at the same as the device you are working on, hence, NO POTENTIAL. or no voltage difference from one to the other. This is where the grounding pad would come in keeping all voltages the same or no potential difference. Using your "earth" ground point with components you can actually create a "floating ground" which means a voltage potential. that is what we are trying to avoid. Knowing procedures , you can quickly overcome this "electrically potential" problem. If you need earth ground, you could plug in that device and touch the metal...
Answer to "Loud pop then no power"Concerning your Vizio Television. It sounds like the power supply inside the Television has failed. Unfortunately, This isn't a problem or procedure for untrained individuals. There are very high voltages within a TV. Cracking the case can be dangerous. Having said that, as I said, First, REMOVE THE POWER PLUG FROM THE TV but remember, there are still potentially HIGH voltages stored in components inside. If you were to remove the outer cover, possibly you will see something either melted, burned or smelling bad, as an electrical smell. Near the power cord entrance. If that is the case, that component is probably the problem component. However did another circuit overload or "draw too many amps" causing the damaged component? We don't know, that is why this problem is not for the untrained person. Knowledge of electronics as well as some basic testing tools / meters are needed. If you're not in this field, it wouldn't pay you to purchase them for one project. You could take the TV to a repair person who...