Hooking up an arcade monitor to a random RGB source

[SkiDragon]

This is the monitor from the Warlords arcade machine I have been trying to fix. I want to hook it up to something with an RGB output, like a Genesis, and test to see how it works. There are two cables to the monitor, power and signal. The signal cable has red, green, blue, sync, and ground, but I dont know which is which and I dont know what the sync is. The power cable has three pins, but it apparently runs on AC power, and I'm not sure how I should hook it up. Perhaps I should power it from the cabinet and just send in a test signal from the Genesis.

Any suggestions?

[Hammy]

not really possible, the sync is not strong enough. just get a jamma loom and a scrap board that still outputs video and hook it up for testing, you're never going to get a strong enough sync for an arcade monitor without a sync amp.

[SkiDragon]

I'm not very knowledgeable about this, but I am pretty sure the monitor as well as the whole machine is pre "JAMMA". Does this even make a difference? What exactly is the "sync" signal?

[Hammy]

yeah it is pre jamma, iirc warlords is a b+w monitor anyway.

sync is kinda hard to describe as a term, but it's virtually the refresh rate.

what's up with the monitor out of interest? completly dead?

[SkiDragon]

Its the color cocktail warlords. The monitor only shows a green square when I turn the machine on. Its probably not a monitor problem but I just want to be sure. If I am unable to fix the machine I would like to use the monitor for something else.

[Hammy]

yes, it's black and white with color overlay on the monitor by the sounds of it :)

sounds like the boards are knackered if the monitor is lighting up. does the game play in the background? (blind)

[SkiDragon]

I'm pretty sure it's a color monitor, but I guess thats not important. The game does not play in the background, its just broken. I was wondering if the sync signal was just a constand sinusoid or square wave or something. I might be able to reproduce it.