> Hi I have a Atari dig dug that was converter to a Street Fighter 2 using the JAMA
> wire harness.
> I added a PC running windows XP and MAME wah frontend.
> I also used a Untimarc arcade VGA card in the PC and a Ultimarc J-pack interface.
> It worked great for many years, but now the 19" Hanterex arcade monitor is going bad.
How's it going bad? Most monitor failures can be fixed with a cap kit, at which point you're back to like-new picture quality for many years. Obviously you'd need to find someone experienced with electronics to install it, but it would help preserve what is, in my opinion, one of the best benefits of having an arcade cabinet.
Alternatively, if you've got your mind set on LCD, at least try and sell or give away the monitor to someone who can restore it.