My from-kit sBitx (#131) now shorts every time turn on the power.
I received the kit last week and had it connect to my LDG AT-100 Pro II tuner. It was tuned for 80m. I had switched down to 40m and was listening LSB for a couple of hours. The mic was not connected, and, not finding how to set my call sign and grid within 10 minutes of searching, I typed "/callsign" on the cmd line and pressed <Enter>. At that point, I'm guessing the unit tried to transmit "/callsign" and immediately turned off. My power supply instantly went into "protect" mode as it did in ensuing attempts to power on the sBitx.?
Upon inspection of the mainboard, I found no visible indicator of where the short might be. Nothing appears blown or burned. The power cable has been checked and is fine. I have taken several detailed pics.
I am looking for a starting point for rectifying this problem. Does anyone have an idea of where my initial focus should be?
