Star Wars PCB Jitters

Winslow

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I've had this STAR WARS for over 10 years. The Amplifone deflection and HV board was rebuilt/recapped and all recommended mods were done. Running on a Wintron transformer. I'm beginning to believe this problem is on the game board itself since I've swapped in different deflection boards and HV boards with no change.


This seems to be a very common problems with all SW boards so I'm wondering what resolution people have found for this problem. BTW - the jitter is more severe at the bottom of the screen which is where I'm pointing the camera but it can be seen in the entire picture. The other not so severe areas seem to be pulsating or jumping slightly. I've read lots of posts with similar issues but haven't read any definitive resolutions. What do you think I should check?

I just recently replaced the 10k sizing pots on the deflection board. No change. Big blue cap was replaced long ago also....

Thanks in advance for your advice. Here's a couple videos showing the jitter:

https://www.dropbox.com/s/xf3lpckvv9zrlpm/Video Nov 11, 9 09 26 PM.mov

https://www.dropbox.com/s/ggbgdme3gf14pdg/Video Nov 11, 9 21 57 PM.mov
 
My Star Wars is doing the same thing. It is definitely not the deflection board. I have tried 3 different rebuilt deflection boards and the issue remains. I haven't changed my big blue, but mine doesn't appear to be bad.
 
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