[Elecraft] No AF in K2

[Rune Edberg]

Using a second-hand Elecraft K2, QRP rig. No. 5810. Works like a charm since several years. However, sometimes the AF speaker / phones sound disappears for any apparent reason. S-meter still moving! Have to reboot the K2 with the on/off switch, sometimes more than once, to get the AF running again. This became a big nuisance after starting operating FT8 as the computer connection goes down and I then also have to reboot the computer. AF is routed to the computer via a constant-level output (put in by the original K2 owner) and thus also subject to the same error.

Suggestions are welcome
73 — Rune / SM5DFM