Don, Et Al,
Looks like the unit may have had a static discharge through the
antenna. Q7, part of the receiver mute circuit was blown. I'll order one
tomorrow and go from there. Once I removed this component, 20 meters
seems to be up there where it should be. Nothing else seems to be
Kurtt,
The KX1 should receive just fine with Q7 removed. Any other receiver
troubles are a different problem.
73,
Don W3FPR
Kurt Pawlikowski wrote:
Don, Et Al,
Looks like the unit may have had a static discharge through the
antenna. Q7, part of the receiver mute circuit was blown.
Don,
I suspected that. At any rate, I've either blown something else
(seems 40 almost worked before I started troubleshooting!) or more
than that one component was damaged. Gonna have to maybe mess with the
LXB3030 with it's SMT stuff. I'm thinking that if that's damaged, its
the most
Kurtt,
If you suspect the KXB3080 board strongly enough, disconnect one end of
the A, B and C wires to that board and it will be removed from the front
end circuits. It is easy to remove the A and B wires from the KXB3080
board (solder them back on the top of the board). The C wire is the
Don,
Still frustrated...
I removed the LPF board and removed both L1 and L2. I then hard
wired them in, just the way they would be with the board and the relay
off. This had no affect on the symptoms: The XG-2 signal still seems
to be being coupled direct to the board (1 uv 50 uv
Mike,
While my pride as a builder says, No way! you are probably right
and I'll probably have to rebuild that board. To paraphrase a quote: We
hates it Mr. Baggins...
Regards,
kurtt
Kurt Pawlikowski, AKA WB9FMC
The Pinrod Corporation
[EMAIL PROTECTED]
(773) 284-9500
Hi,
First, thanks for reading. Hopefully, it won't be boring for those
lucky K3 guys and gals...
CONFIGURATION
KX-1, 3080 upgrade. ATU currently removed and antenna jumper
installed for testing.Using XG-2 as a signal source. I have confirmed
the XG-2 seems to be working about as
Kurt,
From all you have said, I would believe that the problem is in the
KXB3080 low pass filter.
While I agree that your continuity test indicates no apparent problem
with the toroid lead tinning, check all the connections to be certain
there is a bit of solder on both sides of the board -
Don,
I'll check the LPF board closely.
As far as whether the signal increase, I believe it does. Since,
when I touch it, signals I an hearing on my other receiver become
apparent in the KX-1 also. And, I believe the XG-2 signal is increasing
(only by ear). I say that because the
Don,
Okay... Frustrated, but here's what I found
On the LPF1 board, L1, 1 and 4 were reversed and shorted together.
This means that, for all intents and purposes, L1 was a wire. Okay,
well, it's a wire anyway, but with a lot less inductance. You know what
I mean! Hi, hi... This
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