uBITX always in transmission

negroniwalter@...
 

Assembled immediately and fully functional. I did dozens of QSOs in Psk31 and FT8. Now it passes immediately in transmission just turned on, I tried to detach the orange wire at the entrance 5 to Raduino  without result. As soon as the device is switched on after a second bootstrap, it immediately switches to TX, the 4.7 kOhm resistor between the blue wire (2) and the green wire (3) is connected and the blue wire is disconnected from the earth.
Thanks for your help.
Iw5dtf Walter Negroni

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