WTD: Custom chip for Pole Position II

I don't have a part number, I just know it is missing on my board and bob roberts referances it. I have the board close to working and am hoping it is becuase this chip is missing.
 
Assuming you have the Atari PCB, not Namco.

The Atari P/N for the IC at that location is 137351-001.

According to the MAME driver, the is a bootleg version used an EPROM at that location. So you might try the file "cpu-4k.rom" from romset "polepos2b". I haven't actually done this, it's just based on some googling and reading the PPII manual. You may need to swap out two other EPROMs in order to use the EPROM in that location. I'd say try to get a real 137351-001 first, if you can.

Long post about it here: http://forum.arcadecontrols.com/index.php?topic=95903.0
 
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