For the very first time, my old FT-857D is messing around. When I push the Power ON/OFF to switch off the radio, the front panel stop displaying the informations from the VFO but don't switch off totally the radio. The LCD is still illuminated ! And switching on again don't bring the display back. The only solution is to switch off the power supply. The problem is I need sometimes to switch on/off again several time the power supply to get the radio running again. I think in no time, I won't be able to switch on again the radio Any suggestion about what to check ?