[Elecraft] K-2 rev B- Problem - No signals

[Terry ONeill]

I have  K-2 which worked FB until recently.

Now I get no signals on receive. RF gain seems to work as does AF gain.  Sig
gen set @ 4.915  produces  tone in headphones.

+5v & +8v are OK. RANT is off. D6 anode voltage is OK.

I did not build this unit.

Any ideas appreciated.