Donkey Kong blocky barrels and gibberish

wantdataeast

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Is anybody got a best guess on this?

This is the four board stack MPU.

 

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My knee jerk reaction is sockets, particularly on the video board. I had this issue on my Radarscope board. Some Radarscope and TKG2/TKG3 boardsets used these crappy Texas Instruments tension sockets that are less than ideal. Try reseating the roms first.
 
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