Quote:
Originally Posted by Yamamaya42
Is there waveforms provided with that schematic? I see something on there marked point V, right out of the video det, before the video amp...
It will rule out any problems there and before that point.
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He's already disconnected C43 which decouples the CRT from the vid output, and the line is still there. (Edit. OOPs he just posted this again)
And since the line moves with the vert centering adj., the blip has gotta be modulating CRT beam intensity. I still say look for the blip on pin 5 or 9 (focus anode and accelerator(?) anode respectively.