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After some further repairs I am questioning how well the RF/IF sections are working. My thought was to splice in composite signals to see what the set can look like.
I found a few posts with various ideas along with a few points of caution such as transformer isolation, inverted phase signal, and signal strength mismatch. It is not clear to me where I would splice in composite video. My first thought might be at the video detector diode cathode (X9). I am confused around if there is signal that is needed ahead of the pulse gate diode (X11) as this feeds the horizontal output tx and deflection circuit.
Next post has the relevant portion of the schematic.
Last edited by bhegges; 02-24-2022 at 07:09 PM.
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