Resources on adjusting displays?

[darkjedi]

I've got a little lowboy here running a Nanao KZ-20EN + Mitsubishi tube, and after fixing a vertical collapse fault (replacing C408 on the chassis) it's mostly all there.

 

I say mostly, as when I pop one of my CPS2 stacks into the cab to look at the test grid I notice that the lines on the bottom left of each box are wavy at the start (although as it's in vert orientation, it's actually the horizontal line). Adjusting the brightness, V & H-Holds don't affect it, and I'm not game to touch the neck as the convergence actually looks fairly good.

 

Any suggestions of resources one can look at to get an idea of how to tackle this? And on a related note, are there better boards out there (read: not bulky CPS2 ones) to use to generate a test pattern? Thanks!

 

[namastepat]

Is the chassis properly grounded? Also, is the ground pin on the neckboard connected to the ground wire wrapped around the tube?

[buttersoft]

Ah yes, i didn't think of that one. Check to see if the tube ground is properly connected first.

[darkjedi]

The ground all looks ok, but that's purely to the naked eye. will re-check it all the same!

 

 

[buttersoft]

If the grounding tests ok, recap the power and horizontal deflection sections, as noted.

[darkjedi]

Will do. That said, are there videos or written resources out there people can suggest as worth checking out all the same?

[buttersoft]

Depends what you mean when you say adjusting. I would normally take that to mean fiddling with the pots once the setup is done. If you meant the setup itself, there's a few videos like this

 

If you meant troubleshooting, i'm not aware of any quick guides because things can get pretty complicated. Randy Fromm has few nice vids up on his channel but they aint short - https://www.youtube.com/user/randyfromm

[darkjedi]

That is 100% what I was chasing. Cheers dude!