NBA JAM TE video scrolling

Cloverdragger

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I know its not my monitor, because my other games do not do this when I hook them up to the JAMMA connector. This game did this when I first recieved it by mail, and I pushed all the Chips down and it went away and played perfect.


Now its been sitting in a box for a few months, i dug it out to hook it up for good, and its scrolling again... even after i pushed every chip down, a few times... Any advice..??

Short crappy vid of this game in action (colors are way off i know)


 
adjust vhold on the monitor...

just becuase other boards work fine, it still may need a slight tweak.
 
Did you push the chips down with or without support under the board? There might be a trace that is open, I would start looking around the video section and check the traces around any socketed chips in that circuit..
 
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