EDIT: Okay -- looking at this page (
http://wiki.arcadeotaku.com/w/Nanao_MS-2931) it appears that my monitor's specs are pretty much identical with the Nanao MS-2931 (the replacement chassis for the 2931 is the Wei-Ya 3129b, which I'm pretty sure is the chassis that my monitor has). I'm feeling pretty confident in trying with the Nanao MS-2931 specs and seeing what the results are.
It's at this point I'll add how awesome GroovyMame is -- I've spent the last two days pouring through this part of the forum and am excited to finally get this up and running (still waiting to get my ATI card so I can set it all up).
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Thanks for the advice (and the super quick response). I'll keep trying to find a timing chart, but I've been looking everywhere online without any luck (I can only find that PDF and a schematic).
One more quick question -- I also just realized that my monitor doesn't automatically switch to 31kHz -- you actually have to flip a jumper to get it in that mode. With that in mind, will I still be safe using the tri-sync settings you mention for the NANAO MS-2930/MS-2931 or should I just use the settings for something like the NANAO MS9-29?