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I did some more work on this project and was able to get things balanced in such a way that I could take some readings with my scope.
What I found was that I am getting what appear to be correct waveforms on the DA board when I have a standard 31kHz VGA signal plugged into the monitor.
I tested several TPs, but specifically I was able to confirm that I'm getting both proper Vertical deflection signals in from the VGA cable, and that the Vertical Deflection signal looks exactly as the SM says it should when it leaves the DA board.
I'm not sure if this means I can rule out the DA board completely, but I am more suspecting that the Vertical Deflection just isn't spinning up at all.
I already replaced the Vert output IC, and replaced the caps around it (and every other bad cap on the board), so I don't know what to try next.
Also have checked the windings on the yoke and they seem to read what I would expect in both cases.
Any ideas?
Last edited by vol.2; 09-23-2024 at 10:40 PM.
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