This is a video tutorial for you to learn to fix electronics, you must have a basic understanding of electronics, then you will be good and follow up to learn components to know all the components it works like. how it lives and dies and how it is damaged, especially the component we must master from its application basics as well as how to measure while repairing the amplifier, you must pay attention to the following things: About the source of how to measure operation skills, so those are the secrets that we can fix machines well