(I am self-taught in electronics over 20 years as a hobbyist, but I lack some of the fundamentals that folks who went to school for this would know... so please bear with me as I get deeper into this new hobby of retro computing...)
I'm familiar with diode mode in that it produces a small voltage between the leads and displays the the amount of voltage drop when the leads are connected... however....
Why do the board repair folks always put the positive lead to board ground and use the negative lead to probe the board itself? My intuition would be to put the negative lead to ground.
Is the voltage being produced at the negative lead, and the positive lead is then measuring voltage that makes it to "ground"?
If the testing voltage is being created at the positive lead then I would expect diodes to stop any current flowing in the "wrong" direction.
I'm familiar with diode mode in that it produces a small voltage between the leads and displays the the amount of voltage drop when the leads are connected... however....
Why do the board repair folks always put the positive lead to board ground and use the negative lead to probe the board itself? My intuition would be to put the negative lead to ground.
Is the voltage being produced at the negative lead, and the positive lead is then measuring voltage that makes it to "ground"?
If the testing voltage is being created at the positive lead then I would expect diodes to stop any current flowing in the "wrong" direction.
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