DrWizard Posted October 21, 2020 Share Posted October 21, 2020 Some ants got into one of my controller boxes, and amongst other things, fried VR4 (voltage regulator) and D2 (diode) near the Data/IO/RJ45 connectors. The controller powers up but does not communicate so I'm guessing this regulates voltage for the RS485 input/output. The original lettering on the parts is now unreadable. Can someone tell me what these part numbers are? Link to comment Share on other sites More sharing options...
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