Hello Bill
I do not have a circuit (schematic) for the 817 here but I do know that the much earlier FT290 and FT690 had a reverse polarity diode in the negative pole of the DC power connector.
If the FT817 is similar, I would investigate the health of that, or any other, reverse polarity protection circuit / device.
Hope this helps
Denis VK6AKR
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On Friday, October 21, 2022, Bill W1PA <
w1pa@...> wrote:
> Also, what fault would cause a VOM voltage reading of 13.8V from the DC barrel (-) to the 817 metal case?? (same radio)? Do I have a shorted cap?
>
> b
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