Hi Shane

There are alternatives to Frank Massey when it comes to training, so don't forget to consider other options.

James Dillon is particularly well thought of by many respected technicians. He delivers his courses in a thorough, thought provoking, yet relaxed & easy to digest way.

Mark Carter is a Bosch trainer too & I have heard good things about their courses & I hope to attend one soon.

Of course, I have to add that you can venture out on your own training course too, as I did when I bought my first oscilloscope. You may already have one, but if you don't then I can't recommend it highly enough. With an inquisitive mind, you will soon start to witness things that you will make you question your observations. Finding the answers to those questions is not so difficult these days, with access to forums such as this. Rarely will you be ignored, if you have taken the trouble to grab a waveform & post it along with a question.

Once you get to grips with the basics of scope use, you will soon start to understand more fully, the finer details of subjects like Pulse Width Modulation, Frequency Modulation & many other interesting electrical processes.

Some may say that it is not necessary to understand these subjects, but there is a school of thought that, they are the foundations from which you can build a solid understanding of diagnostics upon.