|
So, if I'm following correctly, the problem occurs even with NEW .005's? Weird. Hard to imagine how the vertical could modulate the horizontal (keystone) unless the .005's are leaky (?) The interaction with video seems a mystery also.
Would it be possible to make a decoupling test probe with a new .01 and a, say, 22 Megohm to ground, so you have a ground-reference waveform to scope as you poke around? Maybe you could discover which point is going wonky in the first place, as you switch the vert coupling from .005 to .01. Another thing is to look for the keystone on the plates of the horizontal outputs.
|