Quote:
Originally Posted by Kamakiri
For me, it's difficult because I've never had any formal electronics training whatsoever. Heck, I've never even had the benefit of someone in person walking me through a set step by step. It was just something that I wanted to do ever since I was a boy, so I pick it up as I go and have been doing that for the last decade or so.
I've restored close to 100 sets over the years, but every one of them was done by either recapping and getting lucky, or working through electronic principles and developing a rudimentary understanding of how things work along with problems associated with different circuits and how to resolve them.
I can recap a 630 chassis in 2-3 weeks, and my work is very precise. Hands, I've got. Diagnostic skills, not so much. Doesn't stop me from trying and learning though.
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Well I hope my remarks didn't come off as sounding harsh or criticizing, that surely is never my intention here. I suppose I'm guilty of being a little too sarcastic some days.
I went to electronic servicing school way to late in the consumer electronics game to make any career out of it. So I ended up working many years for an industrial supplier to the weighing industry. Therefore most of my professional experience has been with DC circuits and analog to digital conversion. But in my opinion, understanding the very basics of DC and AC circuits is the key to efficiently troubleshooting these TV's, or for that matter any AC/DC electronic circuit - being able to apply Ohms law, and understanding how current flows through a circuit branch, and how that current flow creates voltage drops across the various components. In my case, seeing is believing, and so very early on I got hooked on using a scope, even when looking at simple things like power supply voltages. Where I have a major weakness is in understanding RF flow through capacitors,coils, and tuned circuits, and it's because I never really took a liking to the math involved in AC circuits. I can still look at the signals, but the results often don't make sense to me. Major stumbling block for me, that I didn't focus more on that math in my younger days.