Tron twinkling sprites. Little dots around the characters, sprites, etc Power Supply?

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Tron twinkling sprites. Little dots around the characters, sprites, etc Power Supply?

I noticed some little 1 pixel twinkling lit dots around many of the sprites in Tron today. You would see these around some of the grid bugs and also inside the top of the EMP cone (or whatever it is called) and other sprites. Very distracting. Game plays fine and I have an original power supply.

Does this sound like a board or PCB issue?

How do I go about checking voltages on the power supply?
 
can you post a video, john? cause normally, you will get some twinkling pixels, like around mcp blocks when they are hit.

have you replaced the interconnect ribbon cables? i would probably do that regardless, and also clean the socketed chip legs and reseat them on both the cpu and video boards (the middle board and the one closest to the side of the cab).

here's how to check the voltages on the power supply, assuming you have the linear 90412 original supply and not a switcher. it's on pages 17-18.

http://arcarc.xmission.com/PDF_Arca..._Midways_MCR_II_&_III_Systems_(July_1983).pdf
 
can you post a video, john? cause normally, you will get some twinkling pixels, like around mcp blocks when they are hit.

have you replaced the interconnect ribbon cables? i would probably do that regardless, and also clean the socketed chip legs and reseat them on both the cpu and video boards (the middle board and the one closest to the side of the cab).

here's how to check the voltages on the power supply, assuming you have the linear 90412 original supply and not a switcher. it's on pages 17-18.

http://arcarc.xmission.com/PDF_Arca..._Midways_MCR_II_&_III_Systems_(July_1983).pdf

Thanks for the link. I'll check the voltages tomorrow morning per the PDF.
 
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