Screen sync problems

[purplec]

Hi

My friend has a cab and we cant seem to sync the screen, belowis a pic of the screen with soul edge playing
http://i306.photobucket.com/albums/nn26 ... 008/12.jpg"

We must have tried every pot on the cahssis but cant seem to get the screen to stabilize, we where wondering if it was a wiring issue below is a pic of the rgb grnd and sync lines on the chassis. there is no composite syn only V sync and Hsync and there seems to be positive nd negative types. Is the connector on the right set or are there wires missing
http://i306.photobucket.com/albums/nn26 ... 8/13-1.jpg"

I have attached some pics of the chassis it is a electrohome g19 i think
http://i306.photobucket.com/albums/nn26 ... 008/15.jpg"
http://i306.photobucket.com/albums/nn26 ... hassis.jpg"

Anyhelp would be great

cheers
Purplec

[grantspain]

first try moving to the other plug,if no joy then remove the sync wire and connect it to the h- pin

[Mellor]

Grant,

Is it the Electrohome monitor that has the bridged v and h sync?

This chassis doesn't have a seperate e/w board does it?

You could also test for continuity from the sync on the jamma edge to the sync(s) on the video plug. I have had a cab that didn't have continuity that was a simple fix.

Does the h/v hold actually appear to do something on adjusting?

[grantspain]

jamma boards are normally negative horizontal sync,just take the sync wire out and put on the -h pin

you can bridge the vertical and horizontal sync

i don't know much about electrohome monitors,not very common in europe