Jungle King - Working then lost Character Sprite

WannabeRetrocade

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Donor 2014
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Power tests well. PCB looks good. We've lost Tarzan and his vines.

Reseated ribbons, all cables, pushed in all chips and visually inspected the stack.

Any thoughts?
 
Did you lose all sprites, or just tarzan and the vines?

Vines is the first stage. Do the other levels have sprites? If you let the game play through attract mode, it should run through demos of all the stages. If the game is set to freeplay, then it won't run through attract mode.

I believe that character data for the vines are on the KN49A ROM, but there's other non-sprite character data on this ROM as well. Seems unlikely to be a ROM problem.

The video board may have separate RAM for sprites. Might be a good place to start probing for activity.
 
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