Hi Manuel
Look and re-look for an
incorrectly placed component (or a component with improper orientation) this
is the most common problem
Now in Portuguese...
Ve os componentes pois o mais frequente é teres trocado a posição
(transistors o contrário ou os diodos).
Good luck Manel I'm very proud with you my good friend
GOD bless you
73 de Jose CT1AOZ
----- Original Message -----
From: "Manuel Wilches" <[EMAIL PROTECTED]>
To: <elecraft@mailman.qth.net>
Sent: Saturday, February 25, 2006 3:01 AM
Subject: [Elecraft] K2 RECEIVER: WHERE ARE THE SIGNALS?
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
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