Quote:
Originally Posted by Jimmy422
Silly question - can I measure G2 with a standard multimeter? I’m seeing some stuff on google that says a traditional DMM can’t handle it.
I do have a scope on the way though - what would you recommend checking with it?
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Depends on the DMM, the TV and how clever you are. Some DMMs are only good to 600V and some G2s can get close to 1000V...Which would exceed what a 600V meter can handle......
.....I encountered that issue once on a friend's TV with their DMM. I needed to measure the 900V boost and the meter on hand was only good to 600V. I had a high IQ moment and realized that if I measured the voltage between the STABLE 400V B+ rail and chassis, and then measured the voltage between the 900V boost and the 400V B+ (a 500V difference) then add the 2 measurements I would effectively get the value of the voltage between the 900V boost rail and chassis ground without exceeding the voltage range/rating of the DMM! It worked like a charm and happened to be a key measurement to the diagnosis and eventual repair of that set.
