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Saved by the hidden fuse in ubitx V6 ;-)


 

I have a bunch of Raduinos with both V5 and V6 headers (2 extra pins) that I was swapping around to check that the KD8CEC LCD functionality still worked with a Pico and Teensy processors.

Well, I plugged a V5 into a V6 *aligning it with the extra pins* (so everything was offset by 2 pins). Magic smoke! (Daughter thought that we had a gas leak lol).

After disassembly, discovered that the copper trace to12v in to on/off switch was literally toast and had actually burned out like a fuse at one point. :-) Jumpered a wire over the virtual fuse and everything "so far" seems fine. Will check again tomorrow, but receive appears to work and I was copying some cw. :-)? Hopefully I got lucky...

73
Mark








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AJ6CU
KD8CEC 2.0, Nextion Screens,? and open source uBITX Raduino boards for Arduino IOT, BLE, RP2040, Teensy 4.0, and Raspberry Pi Pico
https://github.com/aj6cu


 

One more casualty...? Just found out that the Nano A3 pin (ptt) is not 12v tolerant. :-)

When I offset the? Raduino, the 12v was connected to the PTT pin.? Replaced the Arduino, I now can transmit again via ptt.? All in all, pretty cheap lesson to be a little more careful...

73
Mark

--
AJ6CU
KD8CEC 2.0, Nextion Screens,? and open source uBITX Raduino boards for Arduino IOT, BLE, RP2040, Teensy 4.0, and Raspberry Pi Pico
https://github.com/aj6cu