My Williams Slugfest stopped working. The blanking LED on the MPU is out. I've checked all the voltages and they seem to be OK. The only other thing I can see is the LED 3 on the driver board is out also. Any ideas as to what direction do I go to start figuring this out?
So the D19 and D21 are constantly lit on the CPU board? If so, unplug the ribbon cables from the CPU board and try again.
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Rivesville, WV