PAC MAN "deluxe" double images...? anyoneseen this before?

theminer49er

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PAC MAN "deluxe" double images...? anyoneseen this before?

Hey I have this Pac man board that was working great then all of the suddon it started looking all weird. I checked a bunch of pac fix sites game over,mike's, ect... but none had a pic like this. I need it fixed soon ..it was sold now this happened. Thanks
 

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It's displaying the left half of the tile in the right half position as well instead of picking up new data for the right half.

Seems like this could be caused by a character rom issue or a memory issue.

Try swapping the ram chips around and see if the problem changes. Swap out the VRAM addressor daughter board with another board if you happen to have one.
 
It's displaying the left half of the tile in the right half position as well instead of picking up new data for the right half.

Seems like this could be caused by a character rom issue or a memory issue.

Try swapping the ram chips around and see if the problem changes. Swap out the VRAM addressor daughter board with another board if you happen to have one.

will try tomorrow thanks!
 
I would start with the 74ls74 chip at 5M located right below the v ram addresser but in all means start at the addresser card.
 
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