I was given a JDM FT290R (Japanese domestic market version). It has full power out but only FM is working. None of the other mode selections work on TX or RX (there is no audio in RX in any other mode position than FM) although the sidetone does work in CW mode.
Has anyone faced a similar issue with a FT290R, or possibly have a schematic for the Japanese domestic model? It appears visibly different to the old US version I previously owned.
Thanks