[Elecraft] K1 S-meter / AGC problems

[Strode, Carl R]

I'm knee - deep into building a K1
 
Last night - right before my mandatory bedtime I performed the receiver
alignment and tests.  
 
Everything worked A-OK, with the exception of the S-Meter and AGC.
 
There appears to be no S-meter response, and the AGC does not seem to be
working.
 
With the K1 and my K2 connected to the same antenna a S-6 on the air
signal (as indicated by the K2 S-meter) provides no response on the K1
S-Meter.  I also cranked up the K-2 power to 100 watts to the antenna
and monitored the signal with a hank of wire attached to the K1 antenna
jack - REALLY loud signal, but still no S-meter response.
 
The K1 S-meter consistently shows one bar regardless of input signal
strength.
 
The S-meter bar graph test pattern (i.e. brief display of all the bars)
functions when DISPLAY is pressed.
 
I checked the S-meter zero and full-scale settings.  If the S-meter zero
settings is adjusted with the SIG function, the S-meter bars increase
and decrease as described on page 53 of the manual, however there is
still no response to input signals.  Adjusting the full scale setting
similarly does not change response to input signals levels.
 
Due to my assigned bedtime, I was unable to perform the voltage checks
at U1, U2,Q1, Q2, D2 in the troubleshooting table.  Now, I'm at my desk
at work, unable to concentrate on my livelihood.
 
Please offer some suggestions so I can keep my day job!
 
 
Carl Strode
373-4421
 
carl_r_strode at rl.gov