Take out the driver board and unplug everything except the top left connector to the MPU. Boot up and see what you get, doing it this way will show you if it's a MPU problem or driver board problem
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Take out the driver board and unplug everything except the top left connector to the MPU. Boot up and see what you get, doing it this way will show you if it's a MPU problem or driver board problem
Quoted from gutz:The mpu and driver board need to be connected to boot properly
But it's not, so isolate first. Once the MPU boots by itself, the driver board can then be tackled.
Pincoder just put up his beta test ROM for Sys 7.
https://pinside.com/pinball/forum/topic/new-williams-system-6-in-game-test-roms/page/2#post-4674906
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