U5000 with no V-pos control and filling 2/3 screen

mecha

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since the Polo died, I got desperate and threw a U5000 in my Killer Instinct 2. I want to just point out that this is probably the most hacked chassis I own, and I'm guessing when the vertical sweep mod was added the tech or whomever did it wound up charbroiling every solder pad. there were other little hacks I had to do for caps when I first re-capped it about 3 years ago (it was the 2nd or 3rd chassis I ever did) and I went back and retouched everything and got rid of the flux nightmare and when I threw it in it looked like this:

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and a crosshatch:

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there was another transistor next to the ribbon connector that I think goes to the remote board where one of the traces was broken and I tried to patch it. could this be why the V-Pos. pot doesn't work at all?

any ideas are welcome lol
 

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of course. it worked fine until I started dicking with it lol. famous words. I was touching up some of my hacks I had to use when I was first getting into monitor repair cause some solder pads burned up when I was capping it. then I remembered I had no vertical position control and saw some nasty work someone else did and tried redoing it better.. and that's how I came to this.

I have a ton of U5000s in a box and about 4 cap kits, I might just work on getting one of those running instead and just port over the neckboard since I have all the colors adjusted to this tube. worst case scenario, I wind up selling one of them down the road and somebody tells me what to do on this one.

I tried reading mod's repair logs about one with some vertical position/foldover issues and checked over those parts... replaced them with others and it's doing the same stuff.

this is the monitor I used to run with my supergun. I went over it some more looking for some accidental bridges or something but I didn't find anything. granted that was at like 2 am after I was playing with K7000s all day. at least I got my MK2 running with a K7000 again!
 
Does it matter that the monitor worked perfect until I started doing patchwork?

Perhaps one of my patched caps was a 600, sounds like the general area. I'm leaning towards capping one of my extras and piecing together whatevers missing and seeing how one of those works, one that isnt nuked all over the place. I can tinker with this one in the vertical section some more, cause the damn thing did work, minus the vertical position, that pot is completely dead, and I dont know if I have anymore remote ribbons, but I think I have a couple more remote boards.

I'll get it, just very busy at work right now, cant do it now.
 
so this is quite possibly the most bizarre repair I've ever done. allow me to explain the whole situation:

I threw together another chassis and it did the same exact thing. I noticed the remote board had a 2k pot for the V. Pos., when the U5000 calls for a 10k. after doing the appropriate surgery, I still had no vertical control for some reason.

then I got to thinking maybe that broken trace on the Q602 was the missing piece of the puzzle... maybe I shouldn't have fixed that. well on the new chassis none of the traces or pads were damaged, so that transistor was installed perfectly as intended. well changing out adjustment pots didn't bring the control back, so I threw up a hail mary..

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snipped the left leg in the picture and low and behold... it worked just fine.

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