Up N' Down Issues

If you press on the EPROMs do the sprites animate/flash? I have that big square PCB which seems to exhibit that issue but don't have the guts to change all sockets, so much work.
 
I don't believe so but I can double check. The issues I'm having are the car is missing the red color, I have graphical issues along the road like blocks that appear along side road and also the high score table does not display scores at all.
 
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