Hello everyone. First of all want to thank Sparky and all active members for possibility to build such complex and flexible station. I have built 2 5.2C stations and one looks like working fine, but second one have some issues - It is turns on and detect C245 soldering iron. But when I connet iron temperature on a screen rases up to 40 degrees and stops, but iron itself continue heating. I checked power: 3.3 and -0.6 is fine. I tried to compare oscillograms from both circuts and on brocken board there is nothing on 3 leg of u18 and on 2 led signal looks like saw. I'm far away from professional so have no idia what shold I check to find brocken component. Will be appretiate for any help with this. And if anyone have success with connecting jbc DR560, share please what resistors should be installed.
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