Re: [Elecraft] ERR TXG No Power Output

[Jim McCook]

Problem solved (so far)!  I removed all cables from the K3, opened the 
top and re-seated all the TMP connectors. When removing the cables I 
noticed the screws holding the RS232 connector were  loose and the 
connector was very slightly unseated on the left side.  After putting 
everything back together the K3 was transmitting normally again.  After 
several on/off cycles during the day it seems OK. Thanks for all the 
suggestions.


It was good to hear Eric say all the Elecraft employees are safe!  
Hopefully their homes are, too.


Jim W6YA
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] ERR TXG No Power Output

[Jim McCook]

Martin, thanks for the suggestion.  It sounds like a likely source.  It 
was also suggested to be a bad transistor in the LPA.  His was from 
experience, also.  Will first reseat those TMP and other connectors this 
weekend.  I'll try to reach telephone support on Monday before I ship it 
to Elecraft for a lengthy repair time.  I know the fires have affected 
them already.  Very sad.  73, Jim W6YA

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] ERR TXG No Power Output

[Martin Sole]

My first thought would be that if re-seating TMP connectors does not do 
it then possibly one of the 0.1uF decoupling capacitors on the K-REF3 
board. Had that on 2 radios now and on one of them twice.


What is the serial number of your K3?
On both of the problem radios I've had this happen almost exactly the 
same, fine one minute gone the next, both radios were sub 500 S/N's so 
getting on a bit.


Regards
Martin, HS0ZED


On 22/8/63 18:54, Jim McCook wrote:
Pete, the problem occurs with the K-3 connected directly to a dummy 
load or various antennas.   Power is read on K3 and Bird wattmeter.

Mike, I'll try reseating all TMP connectors if there is no magic bullet.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to hs0...@gmail.com 


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] ERR TXG No Power Output

[Jim McCook]

Pete, the problem occurs with the K-3 connected directly to a dummy load 
or various antennas.   Power is read on K3 and Bird wattmeter.

Mike, I'll try reseating all TMP connectors if there is no magic bullet.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

Re: [Elecraft] ERR TXG No Power Output

[N4ZR]

Hi Jim, are you seeing these issues with the control cable between the 
K3 and the KPA-1500 connected?  Are you reading these output numbers on 
the K3, the KPA-1500 or an independent power meter?


73, Pete N4ZR
Check out the Reverse Beacon Network
at , now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.

On 8/22/2020 11:16 AM, Jim McCook wrote:
I have a spontaneous K3 failure after making no changes. This morning 
my K3 has only 1 or 2w power output when set to 100w or around 32w 
when the KPA1500 is turned on and set to OPER.  It's the same on all 
bands and with a dummy load.  It worked fine last night for several 
QSOs.  I tried a 5w TX GAIN calibration but it failed with erratic, 
varying low power readings.  I loaded a previous Configuration file 
but that didn't help.  Whenever I press TUNE I get the ERR TXG message 
after shutting it off.  Power in TUNE is set to 50w, but when I hold 
TUNE the display flickers between 2 and 8w.  Any ideas?  Jim W6YA

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to n...@comcast.net 

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com 

[Elecraft] ERR TXG No Power Output

[Jim McCook]

I have a spontaneous K3 failure after making no changes. This morning my 
K3 has only 1 or 2w power output when set to 100w or around 32w when the 
KPA1500 is turned on and set to OPER.  It's the same on all bands and 
with a dummy load.  It worked fine last night for several QSOs.  I tried 
a 5w TX GAIN calibration but it failed with erratic, varying low power 
readings.  I loaded a previous Configuration file but that didn't help.  
Whenever I press TUNE I get the ERR TXG message after shutting it off.  
Power in TUNE is set to 50w, but when I hold TUNE the display flickers 
between 2 and 8w.  Any ideas?  Jim W6YA

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com