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Mesa 7i78

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31 Aug 2021 15:18 #219261 by PCW
Replied by PCW on topic Mesa 7i78
Right, but that is not isolated. so I suspect you are missing some connection to the 7I78

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31 Aug 2021 19:57 #219280 by COFHAL
Replied by COFHAL on topic Mesa 7i78
Checking the other ADC inputs of the ATMEGA8 the input resistance is muty high and therefore as you thought the speed control ADC input must be bad, I am going to try to get that IC replaced.

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