Help me make my TMNT 2 player

Gamester

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Hey guys,

I have recently got a hold of the US ICs to make a 4-player TMNT board 2-player. I want to do this so I can have selectable characters when playing with 2 players on my supergun. However, I do not know where to put these new ICs and I don't want to damage my board due to lack of knowledge by guessing.

Just as a flat out guess, I would assume that they go here as the current ICs are removable and of the same pin number...

tmnt_arcade-f.jpg


Here are my ICs...

tmnt_arcade-2p.jpg


So, is this the correct place for these ICs? If so, then which one would go where?

Thanks a bunch
 
Look on the board by each socket, there is a location number printed on the baord in small white lettering, the first part of the label info is that location. Start with the ones at the very edge of the board, and work your way in, that way you wont be looking at the label for a neighboring chip.

Also make sure you get them the right way round, each one has a notch on one end, that has to point towards the JAMMA connector. As long as you get them in the sockets the right way round you wont damage anything even if they are in the wrong socket, the board wont work but nothing will die. Get them in the sockets backwards and the chips will fry.
 
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Great, thanks a bunch. I do see those small letters and it looks like I was right about the general area.

Thanks again for the info :top:
 
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