Hello!
I've got a Neo-Geo mvs-4-25 with a Zenith tube and, I think a WG K7000 (or compatible) chassis based on reading the description here
http://www.homearcade.org/BBBB/monitor78.html . The board on my chassis has no discernable identification, but the ICs (7823 & 1397) do match the description and the board looks very similar to the one in the photo. There's also a K7000 built by Zenith there as well
http://www.homearcade.org/BBBB/7000z.html that could be it, hard to tell from the picture.
Here are some (less than stellar) photos of my monitor / chassis:
https://photos.app.goo.gl/aXAJ5Q2G2T5b85L97Anyway, the original issue that started me down this monitor rabbit hole is that at the top-left corner of my monitor, I have color separation. It is visible in the cross hatch test in my photo album above. I know nothing about CRTs. What would cause that? How can I fix it?
In addition, the horizontal size of the image is too wide for the monitor. To avoid having a wrapped-around-like bar on the right side of the screen, I have to move the position as far away as I can. However, this causes things on the left edge (and still somewhat on the right) to be off screen. Is there a way to shrink the image width a bit?
Lastly, I'm always reading/hearing about cap kits being a fantastic thing. Given that these are the only issues my monitor is experiencing, would a cap kit still help? Is there anything else I should be doing to maintain the life of my monitor? I'm thinking of at least pulling out the chassis and cleaning it, so any other service I can do would be great. I've popped/discharged it before with a grounded flathead .. and I know my way around a soldering iron, so not too worried about any of that.
Any help / advice / info would be greatly appreciated! Thank you.
-Sem