The monitor had two obvious problems at first: yellow tint and rainbow patterning. Quick pass with a degaussing coil took care of the latter. Hooked up a composite lead and threw on my low-quality DVD-R copy of my VHS copy of my NTSC Reference Laserdisc and made some quick adjustments to the monitor; results below:
monoscope
SMPTE bars
To make this post somewhat more relevant to the community:
Street Fighter II (PC Engine) Blanka Stage
Street Fighter II (PC Engine) Guile Stage
Street Fighter II (PC Engine) Ryu Stage
Street Fighter II (PC Engine) Zangief Stage
The colors in the game look different in these pictures; hard to make them accurate. But it looks good in person. (edit: better camera settings, more colorful game)
Was reaching for my blue filter to set Color/Tint when I remembered this monitor has a “Blue Only” feature; pretty neat! Surprisingly, adjusting the Screen control on the flyback transformer seems to have more effect on the white balance than on the contrast. Still, had to maximize the Blue Gain control on the PCB and on the front panel to get the white balance close as possible for the time being. Heck, I might not actually bother with it much further; it looks pretty good. Will have to try the RGB inputs.
Saw a few clamshell VHS of this in a thrift store and grabbed one. Have yet to watch it; been holding off till I can view it with some friends. Sounds like it might be as entertaining as I was hoping :)