Monitor won't quite stop rolling and just 'stick'

[newkillergenius]

Hey team-

I've been mucking with this for a bit but can't quite figure this out!

I picked up a Track & Field.  It needed a monitor.  I got a good  known working monitor and put it in.
Turned it on.  Great picture!  Nice & vibrant!  Oh, it's slightly rolling.  No problem, I'll just adjust the vertical hold and we're off!

OK- did that fix it?  No!
OK- how about now?  No!

Jeeeeesus.  OK- to make a very very long story short- the image just simply will not stop rolling and just 'lock in'.  Everything is perfect but it just wont stop.  And we have adjusted it to the point where it will just creeeeeeeeeeeep along- but it wont ever just stay locked, the damn thing! 

Anyone have any suggestion as to how I can stop this?    Thanks for your help-

Justin

[Ken Layton]

Make and model of monitor installed in this cabinet is.....?

Is sync connected properly?

Has monitor in question been recapped recently?

[newkillergenius]

Hi Ken - thanks for your post man!

I'm not sure of the model on the monitor, I will have a look tonight when I go back over.  The monitor has not been recently capped.  It was working 100% when it was pulled from a Neo-Geo setup earlier in the day.  As far as the sync, there are 3 pins at the sync area, and it only displays a picture with 1 setting.  It just wont stop rolling.  So I guess I can't actually say the sync is connected properly, though any other configuration makes it go haywire.  This one configuration I have it in now settles the image, it just wont lock.

[Kevin Mullins]

Try a loop over from the Horizontal pin to the Vertical sync pin.

[newkillergenius]

How do I tell which is which- cause there are 3 pins-  the current config has black wire at far right and white wire at far left, with a vacancy in the center pin.  I feel retarded.   Don't normally have this many issues....

And I am trying to understand this extra black wire.  Seems like there would just be H sync for this board right?  Why the 2 wires?  Ground is at the RGB pinout.

[Kevin Mullins]

And I am trying to understand this extra black wire.  Seems like there would just be H sync for this board right?  Why the 2 wires?  Ground is at the RGB pinout.

So you have two ground wires then ?

R G B Ground . .        Ground . Sync  (?)

Still best to know which monitor you have though. 

[newkillergenius]

And I am trying to understand this extra black wire.  Seems like there would just be H sync for this board right?  Why the 2 wires?  Ground is at the RGB pinout.

So you have two ground wires then ?

R G B Ground . .        Ground . Sync  (?)

It appears to be the case....the thing is, this must have worked for some sort of monitor at some point-it almost does for this one.  But still no lock.

[grantspain]

post a photo of your chassis and the rgb plug

[newkillergenius]

Okay will do Grant- I'll get one posted at 5PM CST.   Cheers all for the help so far 

[Kevin Mullins]

Okay will do Grant- I'll get one posted at 5PM CST. 

So what time will that be for you Grantspain?
Like midnight or so? (12:00a.m)

[grantspain]

Okay will do Grant- I'll get one posted at 5PM CST. 

So what time will that be for you Grantspain?
Like midnight or so? (12:00a.m)

i guess around that time,normally i don't go to bed until gone midnight anyway

[newkillergenius]

pic as promised- found the problem.  After the board there is 1 molex quickconnect and someone had changed the wire color there from white to black, and from black to white.  So, this whole time black was sync, not white.  Problem solved.

[grantspain]

nice and easy then

[newkillergenius]

yeeeeeip thanks all for your posts.