[Elecraft] K3S IF signals seen in P3 and NaP3 but nothing heard

[Brian]

A few weeks back I bought a used K3 upgraded to K3S in many ways, including a sub-receiver (which I doubt I will use).
Anyhow.. about a week or so in I was in a situation where I could see IF signals on the P3 (and NaP3) but hear no signals.
I contacted Elecraft service and they felt that if it persisted I might look at replacing the receiver board at the front (behind display panel) with gold pins (which could be ordered from DigiKey) but would require removal/replacement of the pins on the board. Not eager to do that if avoidable.

Anyhow, by the time (day or so) Elecraft had consulted internally and responded the receiver was once again hearing and presenting signals. I left it at that, thinking well the radio WAS shipped etc. so maybe some settlement etc.

Anyhow, earlier today (a month later ? )  the same thing happened. So before pulling the receiver board and re-setting it in the pin socket (hoping for a better connection) I looked at the other hardware connection there.. the two TMP plugs/sockets. So I took the two cables out with the TMP plugs on them and reset them twice.
Behold, signals heard.

I will let this be for now and if it does not repeat then leave it. I will let you all know if in the short/medium term the program stays away or returns. I did see ONE reference to this in the mail list archives, but the gold pins were mentioned there. Nothing re. the accessible and simpler TMP plugs.

73
Brian VE3VAW Toronto ON