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Track and Field board - all of a sudden not booting

I am now reverse engineering the Custom 3F card to see how the watch dog work signal works coming from that card.
best of luck! I can probe anything you need, just lemme know where (anything on the top board, or a pin from the bottom of the lower board, so I don't have to take apart this stack)
 
best of luck! I can probe anything you need, just lemme know where (anything on the top board, or a pin from the bottom of the lower board, so I don't have to take apart this stack)
If you can get a probe on the reset signal going to the k 1 and power on the board you should see it go from low to high to verify what I am seeing
 
I know you've probably checked but these boards are famous for bootup crashes due to battery and battery backed ram issues. Is the score save RAM getting enough of the battery voltage and is it actually working correctly.
 
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