When it comes to monitors I'm pretty much a complete noob. However for my mame project I picked up an old Blitz cabinet that has this monitor in it. I have an ArcadeVGA and really want to be able to run this in 640x480 and when I first tried it, it worked perfectly. Without knowing what I did though I messed it up. Now whenever I try to run it in 640x480 the best I can come up with when I messed with the dials is this:
This is what it looks like on my computer monitor:
Here are pictures of the 2 boards:
There's also a separate part that controls the Vhold, Hhold, width and position and other stuff.
Not sure if anyone knows how to fix this or if I can fix this, but it did work before, so there should be some way to get it to. Mainly because my Xbox has the same problem when it is hooked up and the lowest it can go is 640x480.