AlbSteve Posted May 7, 2020 Report Share Posted May 7, 2020 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? Link to comment Share on other sites More sharing options...
retird Posted May 7, 2020 Report Share Posted May 7, 2020 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? 1 Link to comment Share on other sites More sharing options...
AlbSteve Posted May 7, 2020 Author Report Share Posted May 7, 2020 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. Link to comment Share on other sites More sharing options...
retird Posted May 7, 2020 Report Share Posted May 7, 2020 You probably tried a different atty also and that the connectivity of the atty to the 510 was solid...... Try a hard reboot... probably won't change anything... Start a ticket with Evolv and explain to them... sent a picture of the board with the ticket..... https://helpdesk.evolvapor.com/index.php?a=add&category=1 Link to comment Share on other sites More sharing options...
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