Hi, I have the same problen with my JBC CD-2E soldering station. When soldering a live wire, the station blown up. Now it shows the Warning#2 open circuit message, it does not read the temperature (always shows 20ºC) and the tip gets power constantly. I have replaced all the OP07, the LM358, the burned R220 resistors, and the burned 3H7 next to the ribbon. But it is still the same.
Any advice?
Thanks!