Jitter sides of monitor problem

edelgiud

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Hi guys, I am working on a friends Marvel Vs Capcom 2 machine with a monitor problem. First, for the type, I am not positive but think it is a Neo-Tec (or Nanao) as picture here:
http://tinyurl.com/nj89fl

It says Full Family 02 V0 on the chassis PCB silk screen. Can anyone identify and give me the actual model?

I could describe the problem as follows: Both sides of the screen jitter left/right and on about a 1 inch area where the screen is not filled in even if I play with the POTs (which do test fine). The monitor seems to be in great condition otherwise (as you can tell from the clean chassis also). When I bring up a Crosshatch white pattern for example, I see a bit of an animation so to speak where the squares on either side of the monitor become rectangles for 1/4 sec and then back to squares.

I checked the ESR on the CAPS and they all check fine. The only one that are odd are the two 1000uf25v at the top left of the PCB left of the ceramic resistor as they measure .25 (expected worst is supposedly about .07). But I assume that since they both measure that, they are most likely ok.

What can I look for as a possible defect? Could something like this come from the game board? Thanks.
 
Ok, thanks. BTW is 2200uf25v CAP with ESR measured at .19 ok?
I cannot find anything obvious with this chassis that might be wrong (I only know how to tests CAPS and look for burnt things and maybe test a few diodes or resistors). I will take a video of the screen in action and show it to you guys by next weekend. Thanks.
 
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