Pacman Video issue

pinballdirec

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I have a Pacman board with a couple issues:

1. Some of the text has the wrong letters (FREE PLAY is FYOU PLAY) some of the other words are spelled wrong also

2. The character are blocks

3. When the characters weren't blocks, the pacman was going backwards.

4. The maze lines are not correct, some of the lines are not solid lines.

Any ideas? Thanks Kevin
 
I bought a twobits ABC test board to do diagnostic on my problem, but I'm still getting the wrong letters for words. Doesn't the test board bypass the memory on the main board? Kevin
 
That board is pretty useless in diagnosing pac boards. The only thing it does that is useful is bypass row 6. Did you check the row 5 eproms and replace their sockets? How about the vram addresser card and socket?
 
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