K7000 heavy horizontal tearing

chirp

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Hi all,
I recently came into possession of a freshly recapped k7000 25" monitor screened p538. After throwing it into a sunset riders cabinet (with a composite sync daisy changed through the last two pins of p1.) I encountered the issue that can be seen in the screen image attached. The tearing and degree of failure to hold the horizontal component of the picture is relatively unstable over the attract mode intro and the monitor in question has no noticeable bad solder joints. I have followed the flow chart and checked C22 and the transistor at Q7, both testing good. My IC2 is socketed and I assume it has been replaced but have yet to test the component. I have ordered one regardless. I am unsure if I have my composite sync signal wired correctly as the flow chart suggested ensuring my negative composite sync signal was only attached to pin 3 on p2 and sunset riders as a game does not communicate the nature of the composite sync signal. I am thinking it is possible that my composite sync is in fact negative and should be at that location. I would appreciate any assistance in identify possible causes and solutions to this problem. I have images of the circuit available on request.
Thank you
 

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(with a composite sync daisy changed through the last two pins of p1.)

This isn't correct. Composite sync is only pin 10 (last pin furthest from you when looking at the chassis). On a JAMMA cabinet, this is the signal from pin 13 on the solder side of the edge connector:

1747066860828.png
1747066778667.png
 
JAMMA games are negative composite sync (-CSYNC). As noted above, you should have a single sync wire tied to the last pin -HSYNC on the monitor.
 
JAMMA games are negative composite sync (-CSYNC). As noted above, you should have a single sync wire tied to the last pin -HSYNC on the monitor.
what's weird is that's how Konami wired them lol I always move the plug over a pin, problem solved.

what's even weirder is we have multiple Konami games wherever I go and it doesn't seem to affect them. but yes, all Wells-Gardner monitors you only want composite sync to the horizontal sync pin (negative or positive depending on game)
 
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