Sanyo 20EZ monitor - Jitters - How to stop this? Donkey Kong.

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Sanyo 20EZ monitor - Jitters - How to stop this? Donkey Kong.

When powering up my Donkey Kong, the Sanyo monitor jitters very little horizontally. After the game warms up a while, this stops and the game plays fine. I did a full cap kit + checked my B+ voltage and it's spot on 108vdc. Any idea what could be causing this and how to fix it?

Secondly, I put an arcadeshop switcher kit in this machine and the game plays but I get a bunch of sprites. I put the same kind of kit in DK Jr. and get the same results. WTF? Is this a power supply issue of some sort? Anyone have this issue?

John
 
Not sure about the power issue, I'd reseat all the chips first as that may help the sprites. The jitters is usually the pots. There are 2 on the pcb and some on the monitor itself. You can get all of them at Bob Roberts. - Barry
 
Monitor the power on the power supply. I have seen this with dirty power coming from an outlet going a switcher. Its possible a line filter might help.
 
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