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Old 18 July 2019, 17:30   #2
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Join Date: Jun 2009
Location: Dublin, then Glasgow
Posts: 4,126
Hmmm, I would suspect U52 since that's the chip corresponding with bit 2 as far as I can see from the schematic. that might explain the confusion, but I would also check that U2 is working correctly, since this is buffering bit 2 and could also be causing that bit to fail.
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