MVS is 15khz. I think that monitor is probably a dual sync, which means 15/24khz not 31. I think there should be a switch on the chassis to change the resolution (could be auto switching though). Also, if it were on 24khz and you plugged a normal Jamma board it wouldn't display anything as it'll be set to the wrong resolution.
pulstar wrote:MVS is 15khz. I think that monitor is probably a dual sync, which means 15/24khz not 31. I think there should be a switch on the chassis to change the resolution (could be auto switching though). Also, if it were on 24khz and you plugged a normal Jamma board it wouldn't display anything as it'll be set to the wrong resolution.
H.H: Horizontal Hold. If you plug in a game and the image looks torn and pulled to the sides horizontally (or the top part of the image seems stretched over to one side), you should try adjusting this.
V.H: Vertical Hold. If the image appears to be rolling vertically, you should try adjusting this.
As for the resolution, as far as I know most standard JAMMA boards are low-res (15kHz), but some other trypes of hardware that you might want to run in a New Astro (SEGA Model 2 and 3, Konami Hornet, etc) might run at medium-res (24kHz). You should look up how to change the resolution of the New Astro monitor (if it is stock, a NANAO MS9 I believe) if you ever obtain a piece of hardware that can output med-res. It involves changing a jumper on the chassis, which is something you probably won't want to do very often unless you install an easy to access switch so you don't have to get behind the monitor each time you want to change resolution.
As for the other switch, I don't remember what exactly it is meant to do. It seems to adjust the sharpness of the image, but from what I've seen one setting looks like crap, the other looks fine. Maybe it has a beneficial effect when running in medium-resolution?
