[Elecraft] BFO Mod and PLL upgrade problem, receiver deaf like a stone

[Don Wilhelm]

Harry,
You did not say whether or not you had good frequency readings at TP3 after
the failure (I could be convinced that things were OK until you attempted
CAL PLL).

Check your soldering, then check the soldering, and check again - you may
have an unsoldered connection, or possibly one that looks OK, but really is
bad - the kind that fail after working for a short while (the result of not
enough heat where it really counts).

Also, be certain you still have a good frequency indication at TP2 (BFO).

Good luck and best 73,
Don W3FPR

----- Original Message ----- >
> just did the BFO mod and the pll upgrade.
>
> Since these mods the receiver is deaf !
>
> First I did the BFO modification for k2s with a prev. installed toroidal
L33.
>
> Afterwards I did the K2 temp.-comp. PLL ref. upgrade.
>
>
> At TP3 I got   12084,65 and 12098,91
>
> But than I run PLL CAL at TP1 and never got the short alert tone or the
END
> message.
>
> Now the reveiver is absolutly quiet, deaf.
>
> The Transmitter is o.k., running 100 watt into the antenna.
>
> But the TX-qrg is far away on the 2. RX.
>
> The K2 is ser. 2408 with, KPA100/SSB/NB/160/KAF2 option
>
> Did also test with the old KAT2 top cover.
>
> I cant here anything with the K2 now.
>