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NeoGeo mvs-4-25 (WG K7000 compatible chassis?) w/ color separation, size issue
Sememmon:
Thanks for the advice about the caps! I will definitely heed it. =]
One other question, while I await my cap kit... something I've wondered since I bought my cabinet. On the .. "neck" on the back of the tube, there are some adjustable rings. What're they for? I should probably just try changing them and see, but haven't wanted to .. make things worse than they are. :o
Here's a pic of what I'm talking about: https://photos.app.goo.gl/9vbuX6d3ews9m6if7
lilshawn:
These adjust the color convergence...they are called purity rings. If it needs adjusting, head over to the wellsgardner website and download the service manual for the K7500. In it, is a set of directions on what adjusting each ring does what to the screen.
Usually they are set at the factory and only need to be changed if they get knocked or broken.
Sememmon:
Installed my cap kit this evening. Everything seemed to go well, except that I appear to have lost my blue gun. What was white is now yellow and the right-most pair of knobs on the neck board now do nothing. I'm guessing I've got a bad solder joint. Going to let it sit overnight and then discharge and pull it back out to closely check my soldering job again, but thought I'd ask here to see if I'm looking for the right thing. Any ideas?
Edit: That service manual was an interesting read. Now I know what the extra rubber wedge I have is for. =]
lilshawn:
could just be a broken solder joint. check the transistor solder points on the neck board.
Sememmon:
I seem to be making things worse instead of better. :laugh2: Now I've got a solid horizontal line at the center of the screen. Some quick googling resulted in some ideas, so looks like I'm pulling it back out of the cabinet again. At least I'm getting pretty comfortable fiddling with this. Kinda regretting the cap kit at this point, though. Hopefully this journey has a happy ending.