[Elecraft] Low RX and Zedro Watts output after KIO3 board substitution

[Marcel Jorba]

Hi
My K3 (s/n 3871) experiments low RX and 0W output (when pressing the TUNE button) with -- as SWR measureNo SSB or CW output power
It hapenned after I substituted the original KIO3 board by a spare one I bought to a ham (the aim was to solve an ols no speaker audio aout problem)
I have the KXV3 installed at the factory
Any idea?
Thanks in advance  Marcel, EA3IN