Try turning the radio on with the 5 up button pushed in. When I do this with my latest ft-227, it will let me operate with all its 5kc synthesized action a blazing.
Now the problem is when I turn the 5 up button off, the display displays a zero : ( turning the radio on with the button off gets the radio on again as "normal" as it can be.
I also have problems with the pll blanking out when keying up, even in lab conditions with a good dummy load and clean power supply.
Anyone else experience this lately???
Best regards, Bruce