Pesky Sanyo 20EZ - no red and video pulsing

evilsizer

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santa rosa, California
Hi pals.

I'm kinda at my wits' end troubleshooting a Sanyo 20EZ in a .vs super mario cab and I'm hopeful some of you folks in good old KLOV-land will have some helpful suggestions on what to try next...

The monitor is re-capped with a kit from ye olde Bob Roberts and has a new flyback installed. The B+ voltage adjustment works fine, no issues there. What's wacky is the video is over-blue in color, adjusting the red bias and the other red control does just about zero. That's problem one. Problem two is shortly after turning the cabinet on the video begins to pulse or throb. It's not a rolling wave, more like a slow strobe over the entire screen. You can see the graphics the whole time and play the game fine but it's damned annoying.

I've poked around measuring here and adjusting there nothing really seems to have any effect. Any ideas or advice is very much appreciated.
 
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