Not all monitor problems are due to capacitors, no idea why they are quoted as curing everything from wonky eyesight to cancer on Klov. Something was probably on its last legs and the disturbance of cap-kitting it has finally killed it.
you sure do keep pounding this subject don't you? while I agree, cap kits aren't the cure-all for monitor issues, they do encompass a variety of different fixes. I also get irritated when the person that posts a monitor problem is an obvious noob and some of the guys are like "install a cap kit" like it's a 5 minute job or you're supposed to produce a bag of caps from your ass, not to mention the OP probably doesn't have the skill or the patience to do it.
a lot of times monitor chassis form varying degrees of cold solder scattered all over the place; while you got the soldering iron out and you're doing all those caps anyway, it's a good idea to start scraping old flux off or getting rid of ancient solder and redoing it properly. I started adopting that method on my later cap jobs of the last year, mainly cause I did some Sanyos where colors would go out and I had some Polos and D9200s that had the same issue, so I redo the neck transistors and large resistors entirely.
foldover, yeah, that can be a cap thing, or it could be a faulty adjustment pot too I suppose. cap kits aren't the cure-all, especially if it's an adjustment you overlooked, and I've seen those Makvisions have plenty of undocumented adjustment pots on them. they're garbage monitors, but we run a couple of them in our game room, one being a tri-res with 3 years of use on it now... I dread the day I have to work on that.
for the OP, recheck your work. make sure you have no solder bridges or if you desoldered some wrong pins maybe, make sure everything gets resoldered! did that on a transformer on a K7500 once, click of death.

fortunately it didn't damage anything, 2 solder joints and it lived again. check B+, sometimes you have to turn the Screen adjustment on the flyback all the way down and see if that gets it to fire up again. you have to verify that it's either an issue where power's not getting someplace or if it's HV shutdown.