Help with monitor identification & ArcadeVGA

[jbarnes611]

  Hi everyone, I'd appreciate your help, I'm a bit of a newb when it comes to arcade monitors.  I got an old cabinet (and monitor) and an arcade vga card.  I've tried reading as much as I can here, but there seem to be so many suggestions, I don't know what to try.  I don't have a pinout for my monitor, so I just "guessed" (bad, I know) so I don't know for sure that everything is hooked up right.

  My monitor says its a 26" Sega (looks to be 1986), model# 26V21SP, Sega part# 200-5125-15 .  Can anyone give me a pinout?  From reading other posts, I got the suspicion that this is a relabled Nanao? Well, there looks to be a 7 pin header on it, but only 5 wires are attached to the connector that had it wired up to it's previous Jamma interface.  I hooked them up according to color.  Red, green and blue wires seemed obvious.  Then I had black and grey.  I took a chance and hooked black to ground and grey to both h & v sync on the monitor cable.  The picture shows up, but I've got the v-hold problem.  I can get it stable per game, but not between windows, mamewah, games, or emulators.  So my first question was to make sure I have the wires hooked up properly.

I've also picked up some other things to try from the forums.  Please let me know if there's anything else I should try or if someone knows a pinout for my monitor.  I will try:

1) Cleaning the v-hold pot (any suggestions, I was just going to use compressed air)

2) Use avres to set all games to 60hz

  I know you get this issue all the time, but I'd appreciate any advice/help you could offer.  Thanks!

[menace]

try hooking the grey wire to just V- sync or H- sync not the two together. 

joey from http://www.jomac.net.au/mon.htm is the defacto expert on nanao's so if that doesn't work--drop him a line and see what he has to see--I've found him nothing but helpful in the past.

[dabone]

Keep the wires together.. You answered your own question.
To keep for having to adjust your monitor, put all your games in 60hz mode.
That way you don't have to search for a "Sweet" spot..


Later,
dabone

[menace]

woops missed the part where he said he got it stable--good catch dabone

[jbarnes611]

So, if I'm able to get a steady v-hold for an individual game, I've probably got the wires hooked up correctly?

[Ken Layton]

According to the Sega USA service site, you have a 26" Sanwa monitor. It was only used in Sega "Power Drift" deluxe cabinets.

[jbarnes611]

Thanks a lot, everyone.

[dabone]

On the vga res tool click on remove all no 60hz modes button.

the tools is available here.

http://mamewah.mameworld.net/downloads.htm



Later,
dabone