Mad Gear repair log AKA reproduction of a bprom to GAL

The game booted perfectly but was missing some parts of graphics , road and cars     Upon closer inspection, there was a missing bprom in position 14k.   Since I had a working Mad Gear, I borrowed the bprom and installed on the faulty Mad Gear just to see if the chip was taken … Continue reading Mad Gear repair log AKA reproduction of a bprom to GAL