Galaga video issues

Brian0364

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Oct 29, 2016
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Franklin, Indiana
I just bought my 3rd arcade of 2016 and it is a galaga upright arcade that was working.
I ordered the enhancement pack for it to store high scores, and installed it in about 15 minutes. Once installed I had this video problem appear. I uninstalled the enhancement board and second ic chip, and the video problem stayed. I have cleaned the legs off and reseated all ic chips on both boards and the problem persists. I checked the voltage on the pcb and it read 5.0 vdc but I bumped it up to 5.2vdc and that did not help the issue.
Below are some screen pictures. As you can see the video looks perfect until a game starts.
It is like every other vertical line is missing or out of place. I am hoping someone has had this same problem before and can lead me in the right direction.
 

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