Quote:
Originally Posted by N2IXK
The 63.7V is the DC voltage you should read if you measure that point with a DMM. The 120 Vpp is the amplitude of the AC waveform present.
The waveform looks to be roughly 50% duty cycle (pretty close to a square wave), and if it oscillates from 0 to 120V peak, the average voltage would be around 50% of 120V, or somewhere around 60V. 63.7 sounds like a perfectly reasonable reading to expect on a DC voltmeter.
Did you ever sit through that scope training course? Real basic stuff like this really needs to be understood before you can really hope to be able to repair a TV except by sheer luck...
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Yep, I watched it. I was pretty much on the right track and just needed a few visual instructions to understand the rest. I can now do all the basics and am learning more each day.
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