Mar 212015
Star Jacker has two PAL16R4 chips on it. Looking at the schematics for Star Jacker and Choplifter I saw the PALs on both of these boards are very similar. The 315-5138 from my Choplifter board works fine in place of the 315-5024 PAL on the Star Jacker board.
The other one has a couple of differences. Pins 13 and 19 are swapped and pin 17 has a different designation altogether but it looks the same apart from that. I will try and recreate this chip soon.
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