The FT-857D is not that difficult to work on, but there are limited people who offer the service.
There is one shop that does here is a link to his Facebook page.
I have worked on them several times myself, but I don't do it as a business, more entertainment working on radios for local hams.
Most of the parts are available and Yaesu parts are fairly reasonable.
I assume the receiver works OK and that would mean that most of the transmit chain is probably working as well.
Magic smoke leaking out is a sign that the problem could be visually traced to get near the fault and also indicates a higher power area or perhaps enough heat to char the circuit board.
Good luck with the radio.
J.D. Barron
KE4MD
