smooth job on those trace repairs! and great thread overall, thank you.
Thank you Butters!
There's one more thing I'd like to cover before closing off on this project, the "width capacitor".
WIDTH CAPACITOR
These TVs all have the same basic layout, and somewhere near the yoke pins, flyback and HOT you can find capacitor, usually a brown polypropylene high voltage type, with a value of around 334 (330nF) to 684(680nF)-ish. Changing the value of the capacitor can change the width by up to 1-2cm. Mostly I want to bring it in a little.
Now yes, I feel a bit lazy calling it the "width capacitor", and of course there are other capacitors involved in screen width. Sometimes there is more than one cap there (capacitors in parallel add values). But for now that's what I'm calling it, and it is pretty easy to identify.

So, this TCL TV had a 364 width cap. I changed that for a 474, and gained an extra 6-8mm on each side, so roughly 1.5cm clawed back from the overscan region.
Compare the following before-and-after pics from the Nokia test screen at 720x480i. One on the left has the 364 cap, one on the right has the 474 cap.

Finally, here are some pics of a game in action, and the frontend menu screen. See how the sides have been pulled in more? That bowing or wobble on the right side has lessened too.
While I was in there I found a nearby capacitor with a cold solder join, so reflowed that, may have helped a little with that bowing too. I used my Dick Smith ESR meter to check that cap, and all the other electrolytic caps around nearby and in the power supply, but found nothing suspicious.

I could try to squeeze those last few horizontal pixels out of overscan by going up to a 564 (560nF) width capacitor, but I am happy with the outcomes already. So, I call that a win and stop there for now as I have other pressing matters.
Oh, and those zener diodes for input protection - I changed them from 6.8v to 12v. I'm imagining that the black levels look better. Will update the schematic diagram above later.
I'll leave you with one last pic - At the back, I swapped the red and green connectors to their correctly labelled positions. Made the connections a bit sturdier too.

Peace
