[Elecraft] K2 RECEIVER: WHERE ARE THE SIGNALS?

[Manuel Wilches]

Greetings from Argentina.
I am building K2 # 5310
I have purchased all Rework Eliminators (they were a breeze to install, by 
the way and are very neat indeed!) and I have all K2 options except 60 
meters, i.e. 160mtrs - DSP - NB - K2/100 - SSB.

I have completed part II of the RF board and the "Alignment and Test, Part 
II". All values tested, calibrations, voltage measurements etc. were within 
the specs indicated in the K2 manual. During assembly of the FP and CB all 
tests required were also on target. I have built and used the Frq. probe, 
the RF probe and the N0SS probe. I do not have a signal generator or any 
other instrumentation. I have a DMM. All my Rework Eliminators are plugged 
in.

The problem: the receiver has full noise (as though it worked ok) but when I 
connect an antenna (40 meters GP) I do not hear any signals. I heard a CP4 
perhaps RST 519. Extremely weak.

I tried N0SS's probe and I pick up a strong signal through all test points 
up to C225. I have no signal pick up there nor at C226 or C227. I did not 
check W6 and W1 because I did not install those jumpers (I followed the 
Rework Eliminators instructions that call for other steps). I do not know if 
there is an alternative test point for those. I have been through the usual 
checks for bad solders etc.

I have used the proper solder and a controlled temp soldering station.

I would very much appreciate your assistance and guidance. I have had the K2 
on for hours now (playing with the keyer) and there has been no change. It 
looks great, that is for sure!

Thank you very much
73

Manuel
LU5OM
CT4IK
K2 # 5310