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DNA 75 board. The board says check atomizer, when a 1 ohm resistance is at the board. Display reports 0.00 ohms.  Drilled the mounting screw holes to 2.1 mm. The board no longer reads resistance. Filled the mounting screws holes with solder. The board still will not read resistance. Can measure the 1 ohm resistance on the board pads with a meter. Wiring, 510 ect. not the problem. Any idea's to get the board to function properly?

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Data sheet:  https://downloads.evolvapor.com/dna75.pdf

Did you measure continuity from each ground (mounting holes) to B-? Did you measure continuity from B- to the the atty ground connection at the atty? Did you measure  from the negative atty pad at the board to the negative connection at the atty?

Did the board work prior to you drilling the holes bigger?

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53 minutes ago, retird said:

Data sheet:  https://downloads.evolvapor.com/dna75.pdf

Did you measure continuity from each ground (mounting holes) to B-? Did you measure continuity from B- to the the atty ground connection at the atty? Did you measure  from the negative atty pad at the board to the negative connection at the atty?

Did the board work prior to you drilling the holes bigger?

"Did you measure continuity from each ground (mounting holes) to B-". With holes drilled lost continuity to mounting hole and B-. After filling mounting hole with solder, continuity returned from all mounting holes to B-. "Did you measure continuity from B- to the the atty ground connection at the atty?" - yes, has continuity. "Did you measure  from the negative atty pad at the board to the negative connection at the atty?" -yes has continuity. Soldered 1 ohm high watt resistor to output, no atty used,  very positive connection. "Did the board work prior to you drilling the holes bigger?" - never tested prior to drilling. I did previously , drill out a 75C successfully. Assumed this would work.

 

 

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