[Username1]

Picture #2 of Post 4 looks like there is only 1 picture on the screen. And the clear extra whiteness of that line makes me think its in the horiz osc. the shape of the wave is not right and the scan line is slowing down where the while vertical line is. (slower scan the beam spends more time in that spot and it ends up being brighter) Most likely its a cap discharging too quickly, same would cause the picture to be narrow. So look for a cap that is too small, changed its value - beginning to open - or a wrong part in there. Recapping without checking now and then you might have put the wrong one in there. Check the value of that coil you replaced, is it really bad? Could be the cap near or in parallel with that coil. Picture 1 of post 4 actually looks like its folded over in the middle, and again the picture looks narrow.