Sanyo 20 EZ, Mario doesn't want to sync.

tbbk

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Ok, I have this Mario brothers cabinet that had a working jamma game in it. It had one of the later Sanyo 20 EZ monitors (the ones with the inverter board, this one had a 1984 date and a "Right Monitor" sticker on it).

Took the jamma board and wiring out, took an original Mario Bros. board and harness (had to cut it a bit to use the newer power supply, but it worked) and installed that.

The picture is both upside down and not quite syncing (particularly horizontally). I was able to adjust the horizontal to the point where half the image was stable and the other half was a little jumpy, but then I lost that when I tried to get it a little better and then couldn't get it back.

I have tried both going through the inverter board and skipping it entirely, with identical results, what am I doing wrong here.
 
Is the video harness wired properly? I know that the Nintendo video harness is different than the normal harness:

1- Green
2- Red
3- Blue
4- Ground
5- Ground
6- Sync

And are you adjusting the horizontal hold in the center of the board?

SanyoBoardControls.jpg
 
I was indeed adjusting the horizontal hold in the middle of the board, however I did not verify that the video harness was wired properly. I will check that next.
 
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