Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: menace on May 14, 2004, 01:27:01 pm

Title: Trouble getting sync with Jpac and Trident
Post by: menace on May 14, 2004, 01:27:01 pm
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!
Title: Re:Trouble getting sync with Jpac and Trident
Post by: DaveJ-UK on May 14, 2004, 01:54:42 pm
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.
Title: Re:Trouble getting sync with Jpac and Trident
Post by: SirPeale on May 14, 2004, 08:37:23 pm
Did you turn 15KHz on in *software?*
Title: Re:Trouble getting sync with Jpac and Trident
Post by: menace on May 14, 2004, 10:44:38 pm
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?
Title: Re:Trouble getting sync with Jpac and Trident
Post by: SirPeale on May 15, 2004, 08:07:54 pm
No.  Turn on 15KHz, see the pretty picture.  The base mode before turning it on is just so you don't damage the monitor.
Title: Re:Trouble getting sync with Jpac and Trident
Post by: menace on May 15, 2004, 11:00:20 pm
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. ???
Title: Re:Trouble getting sync with Jpac and Trident
Post by: SirPeale on May 16, 2004, 04:00:58 pm
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.
Title: Re:Trouble getting sync with Jpac and Trident
Post by: menace on May 16, 2004, 04:34:57 pm
Yeah tried that.  I've sent andy an e-mail for some insight.