Learning how to repair Nintendo Wii is quite straight forward and anybody can do it.
The process of video game console creation does require some knowledge about electronics. However, once the know-how has been established, anyone can repeat the process, provided he or she is told how to.
In most industrial products, the building process is made by workers on a production line. Each of these workers repeats a single process over and over. They might be the ones that set the motherboard on the Wii console, but that doesn’t mean they have to know how a mother board works.
Learning how to repair Nintendo Wii consoles isn’t much different. All you need is to know HOW. And if you think about it, most of the processes with objects that you know, you know them because someone taught you how to do them. If you have a car, chances are someone taught you how to drive and how to change a flat tire. You didn’t need to understand the complex process of how gas turns into motion to learn that, did you?
The same can be said about the Nintendo Wii, only that how to fix Nintendo Wii consoles is not as common knowledge as changing a tire.
One more example, have you ever been asked to do something that a person can’t do but you believe it’s really easy? For example, when your aunt asks you to send a mail for her, or your uncle asks you to connect all the cables of his new DVD player, or your little child cousin asks you to put the batteries in his new toy. They ask you to do it not because the task is difficult or tough or hard. They ask you because they don’t know how.