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Help with Yaesu FT-847 please


 

Hi all, I have a strange problem with an FT-847 and hopefully someone has seen this before and can help:? I have an FT-847 that works fine EXCEPT for an issue with turning it on or off. I replaced the power switch but the issue I have has nothing to do with that which I was hoping it did. When I connect my power supply to the radio and turn on the power supply without turning on the radio? I can hear what sounds like a relay click in the radio but nothing happens, just the click. Then when I push in the power button to turn the radio ON nothing happens for maybe5-10 seconds and then the radio comes on and works. If I push the power switch to turn the radio OFF then the display still stays lit up, display looks fine but nothing works, no buttons, no changing of frequency with the VFO, it's in a catatonic state. If I push the power switch back in again to turn the radio ON (even though it's all lit up)? then a few seconds later sound and all controls etc come back to life. If I leave the radio on when it's working and turn off the power supply of course the radio shuts off and when I turn the power supply back on when the power button on the radio is in the ON position it starts right away and performs fine.

?Any help appreciated.

Thanks, Adam

Adam Farber W4AJF
Cooper City, FL