K3: No Power Output

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K3: No Power Output

w4ish
Ok, I need some help.
My K3 has been working great, even though I have not found much time  
recently to operate.  I listen more than I talk, and everything has  
been great.  Today I sit down after work and turn it on and attempt to  
transmit.  No power output.  The display reads zero watts, and has two  
dashes where the SWR normally resides.  The "TX" icon is flashing on  
and off.  Here is what I have done:

1)  Checked to make sure it was not in "test" mode.  That was Okay.
2)  Checked to make sure that I have not routed RF through the KXV3's  
XVTR IN/OUT jacks by accidently switching to a transverter band.  That  
was okay.
3)  Checked that CONFIG:KXV3 was not set to TEST.  That was okay.
4)  Attempted to recalibrate the power on all bands via the manual.  
Got no output when pressing the TUNE button.

We have not had any power outages, nor have we had any thunderstorms  
(Almost wish we would, because we could use the rain, it is sooooo dry  
here in Kentucky!)

The K3 is a K3-100 with KXV3 board, the 13KHz, 2.8KHz and 400Hz  
filters, KAT3 board.  I have hooked it to an external power meter (the  
LP-100) and dummy load to be sure it was not putting out any power, so  
the cables have all been switched and have been eliminated as  
problems.  The receiver was operating, although it's gain did not seem  
to be quite what it has been. (This may be a clue?)

So, I am asking the collective wisdom of this list-serve, "What else  
do I check?"

"There are 10 types of people in the world -- those who understand  
binary and those who don't."

William Evans
[hidden email]

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Re: K3: No Power Output

KK7P
> ...The "TX" icon is flashing on and off.

This means the radio is in TX TEST mode.

Hold the TEST button (the right side of the MODE switch) to cancel TX
TEST mode and return to normal transmit operation.

73,

Lyle KK7P
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Re: K3: No Power Output

w4ish
Thanks Lyle, but I have already tried that, and the K3 is NOT in test  
mode.

On Oct 17, 2008, at 7:26 PM, Lyle Johnson wrote:

> ...The "TX" icon is flashing on and off.

This means the radio is in TX TEST mode.

Hold the TEST button (the right side of the MODE switch) to cancel TX  
TEST mode and return to normal transmit operation.

73,

Lyle KK7P


"There are 10 types of people in the world -- those who understand  
binary and those who don't."

William Evans
[hidden email]

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Re: K3: No Power Output

Vic K2VCO
William Evans wrote:
> Thanks Lyle, but I have already tried that, and the K3 is NOT in test mode.

Check CONFIG TX INH. If it isn't off and the TX INHIBIT pin is floating,
it might cause the symptom you have.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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Re: K3: No Power Output

w4ish
Thanks Vic... that was it.  Somehow TX INH had been set to LO=INH.  I  
set it back to OFF, and power suddenly returned.  Thanks again for the  
wisdom of this group!

Bill
W4ish
On Oct 17, 2008, at 7:37 PM, Vic K2VCO wrote:

William Evans wrote:
> Thanks Lyle, but I have already tried that, and the K3 is NOT in  
> test mode.

Check CONFIG TX INH. If it isn't off and the TX INHIBIT pin is  
floating, it might cause the symptom you have.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco


"There are 10 types of people in the world -- those who understand  
binary and those who don't."

William Evans
[hidden email]

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