Trouble getting sync with Jpac and Trident

[menace]

When the K7191 is hooked up to a jamma board--sync is rock solid and I have a great picture, When i hook it up to the Jpac/Trident combo, i can't seem to get sync regardless of what combinations i try--it just keeps rolling and the jpac sync LED remains out.  So far I have tried H- with V-, (h-,V+),(H+,V-),(H+,V+)

Anyone running a jpac with K7000 monitor?  what wires went to your composite line on the jamma edge connector?  Thanks!

[DaveJ-UK]

I think some monitors need the composite sync from the VGA out to be run through a NOT gate. Most monitors work fine with it wired directly I believe. I think some only need the H. sync.

[SirPeale]

Did you turn 15KHz on in *software?*

[menace]

nope not yet--wanted to get a stable picture before messing with the software--i tried it with both the 31 and 15khz jumpers in (default) as well as the 15khz by itself--no stable picture anywhere.  I should still be able to get a solid picture (although split in half vertically) with just hardware right?

[SirPeale]

No.  Turn on 15KHz, see the pretty picture.  The base mode before turning it on is just so you don't damage the monitor.

[menace]

I loaded all the software for 15khz running and still no sync??  I'm going to post over at andy's site and see if he has any ideas cause I'm fresh out.

[SirPeale]

What's your setup like?  What OS are you using?

If you're using DOS or Windows 95/98, load the arcmon.sys driver in your config.sys.  When it boots, see if the LED flashes.

[menace]

Yeah tried that.  I've sent andy an e-mail for some insight.