For clarity you mean the 7203 right the newer 19" board and not the k7000? Ive never heard of needing to change the width cap on a k7203 unless you think that specific part is bad but here you can find a plethora of knowledge. The k7000 is pretty common depending to have to mess with the width caps especially not using it on a distinct k7000 tube. Cheers.
the 600 section in the lower right corner is the width circuitry. the width transistor is on a heatsink at I believe 2SD669 Q603, and there's transistors 2N3904 Q601, 2N3906 Q602, FUF5406 D602. I had multiple K7203s with width problems where I work over the years. the width transistor I needed to get a part from NTE cause I think it's unobtanium, and so is NTE.
now if you're talking about a K7201, those have mostly the same board layout as K7000 just with SMPS. width cap would be at C38.
Thanks guys, yes it's a 7203 with no width coil. All the horizontal pots are maxed and the image is too far to one side, the jumper really didn't do much.