[Elecraft] K3 problem

[Jim Leder]

Just got back from visiting a friend who has an older K3. After fussing around 
with RS232 cables, we finally got the firmware updated, it was quite old. But, 
BEFORE we did the update we knew we had the problem (reason we did the update). 
So, the update had no bearing on what is wrong
Problem is the VFO B knob has NO effect on anything. He can’t run split by 
using it even though he is able to do A>B ok. To change the B frequency, he 
needs to do A/B , change it, then A/B back again. Doing the split will allow it 
to transmit what’s in B, he just can’t change it with the VFO B control.
Related to this is the inability to enter the config menu and scroll through 
the options.

Net is the VFO B control does nothing.

I suspect something to do with the alternate VFO encoder or one of it’s 
connections.

Opinions? Seems to me a visit back to the mothership.

Thanks.

Jim Leder … K8CXM

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[Elecraft] K3 problem

[Jim Leder]

This is a follow up on the VFO B control problem with a friend’s older K3.

Thanks to all the ideas and suggestions! I do agree that it is likely the 
infamous K3 connector problem. As I mentioned, the K3 is an older unit. The ham 
who it belongs to is 78 with bad eyes, and shaky hands. I’m 74 with bad eyes 
and shaky hands. Neither of us feels qualified to tear into it for what 
hopefully is the main issue. It could still be a bad encoder.
Since he needs a few other things done with the unit, he made the decision to 
send it back to Elecraft and have qualified techs perform the repair. Painful 
and costly but necessary.
When we did the hard reset, we hoped it would solve the B control problem. 
Well, it didn’t. Now we can’t even scroll through the CONFIG menus to put 
everything back as he had it.

Doesn’t matter. It needs to go home.

Thanks again for the valued suggestions!!

73 …

Jim Leder … K8CXM

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[Elecraft] K3 Problem

[Phil LaMarche]

Thank you to all the wonderful hams who sent emails to help me this weekend.
Thinking I had a K3 problem and really didn't.  However, I don't
understand.I wasn't able to connect with anyone for 7-28 MHz even though
the Pal Star watt meter showed 100 watts and little SWR.  In desperation and
eliminating other possibilities, I put an analyzer on the coax to the beam
and it measured infinity across it's range.  I obviously have a coax or beam
problem.  BUT, why did the power meter read as it did?  If that had been
screwy, I would have immediately checked the antenna.  Antenna guys are
coming Friday and soon I'll be happily on the air again.
 
What a wonder reflector and company to offer help for what ever the problem.
I'm so glad I have a K3.
 
Phil
 

Philip LaMarche 
LaMarche Enterprises, Inc.
  www.instantgourmetspices.com

www.w9dvm.com   
800-395-7795 pin 02 
727-944-3226 
FAX 727-937-8834 
NASFT 30210 

K3  #1605

CCA  AC98  00827
W9DVM 


 
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[Elecraft] K3 Problem

[Steve Zumbrun]

When I am using VOX in SSB mode using headphones and I engage the NR feature 
my speaker cycles on and off.  This happens when using the F1-4 NR settings 
and goes away as I make the NR settings more sever (ie., F2 to 4-4).  Anyone 
else notice this?  I think it mignt be since I downloaded the latest 
firmware UC 01.69.  Best 73, Steve W0SZ. 


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[Elecraft] K3 problem

[Jerry Pittenger]

Well it looks like I have a problem.There is an intermittent buzz on the
speaker audio.   When I turn on the radio it works perfectly.  But after a
few minutes a strong buzz overlays the audio.  It is sever.  You can hear
the stations under the buzz.   If I turn the radio off and immediately back
on, the buzz is still there.  However if I leave the radio off for 3 or 4
minutes and turn it on, it is fine for a few minutes and then the buzz pops
back on.   Also keying the radio on CW also seems to fire up the receiver
buzz.   Note that it is okay on a pair of headphones.  It is like it is
going into oscillation.  Everything else on the radio seems normal. 

 

Any suggestions?I suspect a component in the audio amplifier.   Does the
headphone jack take the audio signal before it hits the main audio amp?
I wish I had a set of circuit diagrams.

 

Jerry K8RA

 

 

 





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[Elecraft] K3 problem

[David F. Reed]

  My K3 (serial number 1476) was working fine this morning, but started 
exhibiting a problem this afternoon...

I occasionally get a "ERR PL1" message on the screen; I have the 
following behavior:

   1. other stations report my transmission is off frequency or garbled.
   2. sometimes the receive acts like there is no antenna connected
  (Noise floor at -140 db, as opposed to the more normal -120 db on
  40 meters)
   3. Sometimes the TUNE produces 0 watts out (set to 100); other times
  it gives the full 100.

I suspect all these symptoms are related to the error message.

I note that the rig is warm (on for a few hours) but not hot; I don't 
know if it will do this from cold, but I will try to find that out (rig 
is off now waiting to cool down to about 80 deg. F.).

Any thoughts or suggestions?

Thanks and 73 de Dave, W5SV
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[Elecraft] K3 Problem

[Phil LaMarche]

I found the problem and it is working well.

 

Phil

 

Philip LaMarche

 

LaMarche Enterprises, Inc

  p...@lamarcheenterprises.com

  www.LaMarcheEnterprises.com 

 

727-944-3226

727-937-8834 Fax

727-510-5038 Cell 

 

  www.w9dvm.com

 

K3 #1605

 

CCA 98-00827

CRA 1701

W9DVM

 

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[Elecraft] K3 Problem

[Phil LaMarche]

Let me word my request differently.  The only thing that shuts down is the
wattage.  Goes from 95 to 0 after 30 seconds of transmitting.  Re key and it
does the same thing.  SSB.  Sorry for the confusion.  SWR 1.7:1.
 
Philip LaMarche
 
LaMarche Enterprises, Inc
p...@lamarcheenterprises.com
www.LaMarcheEnterprises.com   
 
727-944-3226
727-937-8834 Fax
727-510-5038 Cell 
 
www.w9dvm.com  
 
K3 #1605
 
CCA 98-00827
CRA 1701
W9DVM
 
 
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[Elecraft] K3 Problem

[Phil LaMarche]

Did a further test.  shuts down at 50 and 95 watts but not at 30 watts.
 
Phil
 
Philip LaMarche
 
LaMarche Enterprises, Inc
p...@lamarcheenterprises.com
www.LaMarcheEnterprises.com   
 
727-944-3226
727-937-8834 Fax
727-510-5038 Cell 
 
www.w9dvm.com  
 
K3 #1605
 
CCA 98-00827
CRA 1701
W9DVM
 
 
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[Elecraft] K3 Problem

[Dick, WN3R]

I actually sent my rig back for this problem, but I didn't analyze 
properly so it came back to me with "no problem found".  I now 
understand where my distortion is coming from.

With compression above 30, I seem to be getting some RF feedback when 
MIC+LIN is ON.  When it is OFF, audio is clean.  Thinking RF was being 
picked up by a cable, I removed them all.

It made no difference. In the TEST mode, tx audio is clean.

I am anxious to get this fixed before the contest so I can use voice 
recordings in N1MM.

Thanks

Dick, WN3R


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[Elecraft] K3 problem

[n1ix]

My K3 developed a problem this weekend.
None of the front panel pushbuttons work correctly.

For example:
ATU tune   changes the  AGC value
ANT = NB2
RX  Ant = NB
PRE = ATU
SPOT = HI .Lo cut 
CWT = CMP
etc.
Other pushbutton don't work at all.
A/B REV A->B, Band, Mode

The only button that works correctly is the "Power"

I've done a "parameter reset" I had to use the spot button instead of
holding in the Shift knob.
I also tried reloading firmware,
Any other suggestions ?

Dave N1IX

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[Elecraft] K3 problem

[Jim Bobo]

Just got my antenna up after 3 years of the air and tried the K3. It 
just shuts down when keyed. Was back to the factory several months ago 
and not been turned on since. Have a manual somewhere but can't put my 
hands on it. Any help would be appreciated.


73, Jim, W5ODD
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[Elecraft] k3 problem

[Bob Gibson via Elecraft]

Hi Fellows.. I have a friend that I'm trying to help.. he is 85 years old and 
has a k3. He turned on the radio today and got a err exf message... or he may 
have said err txf. not sure.. I told him I would try to help him.. he is in 
OKLA and I'm in Florida so it is not easy.. Can someone please tell me what the 
message means.. and I will call him back. He is a very dear ham buddy of 60 
years. Thanks    73s Bob W5RG
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[Elecraft] k3 problem

[Bob Gibson via Elecraft]

Well I guess he will have to call on Monday to Elecraft to get help.. over the 
phone will just not work.. Thanks to all who replied!!    73s Bob W5RG
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[Elecraft] K3 problem solved.!!!

[Josep via Elecraft]

Howdy guys, good new here.!!!
just to let y´all know that I have finally solved the problem in my K3..!!!
A Ham friend has given me a old cable Serial-USB and it has worked.!! The K3 is 
now running again.! Very happy here so I don´t need to send it to Italy.!
Theres one thing I don´t understand and it is related with the PWR, I can see 
only 12W.! Why it´s not sending 100W like the first days I used it.? I does not 
go over 12W (?), Can that be due to high SWR.? The tuner has matched the 
antenna but...(?) Not 100W out by now, any tips.?
Thank you so much for all your help.!


73, 
JosepEA6BFMyWebsiteBUG #256  -  CWOps #3072  -  FOC #2182 (ex 1724)
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Re: [Elecraft] K3 problem

[iain macdonnell - N6ML]

On Thu, Oct 24, 2019 at 1:20 PM Jim Leder  wrote:
>
> Just got back from visiting a friend who has an older K3. After fussing 
> around with RS232 cables, we finally got the firmware updated, it was quite 
> old. But, BEFORE we did the update we knew we had the problem (reason we did 
> the update). So, the update had no bearing on what is wrong
> Problem is the VFO B knob has NO effect on anything. He can’t run split by 
> using it even though he is able to do A>B ok. To change the B frequency, he 
> needs to do A/B , change it, then A/B back again. Doing the split will allow 
> it to transmit what’s in B, he just can’t change it with the VFO B control.
> Related to this is the inability to enter the config menu and scroll through 
> the options.
>
> Net is the VFO B control does nothing.
>
> I suspect something to do with the alternate VFO encoder or one of it’s 
> connections.
>
> Opinions? Seems to me a visit back to the mothership.

... or try to diagnose and fix it yourself. The VFO A and B encoders
are the same, so you could swap them to determine if it's the encoder
that's bad or something else

73,

~iain / N6ML
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Re: [Elecraft] K3 problem

[Nr4c]

If there is a sub-receiver check if the VFOs are linked. 



Sent from my iPhone
...nr4c. bill


> On Oct 24, 2019, at 4:20 PM, Jim Leder  wrote:
> 
> Just got back from visiting a friend who has an older K3. After fussing 
> around with RS232 cables, we finally got the firmware updated, it was quite 
> old. But, BEFORE we did the update we knew we had the problem (reason we did 
> the update). So, the update had no bearing on what is wrong
> Problem is the VFO B knob has NO effect on anything. He can’t run split by 
> using it even though he is able to do A>B ok. To change the B frequency, he 
> needs to do A/B , change it, then A/B back again. Doing the split will allow 
> it to transmit what’s in B, he just can’t change it with the VFO B control.
> Related to this is the inability to enter the config menu and scroll through 
> the options.
> 
> Net is the VFO B control does nothing.
> 
> I suspect something to do with the alternate VFO encoder or one of it’s 
> connections.
> 
> Opinions? Seems to me a visit back to the mothership.
> 
> Thanks.
> 
> Jim Leder … K8CXM
> 
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Re: [Elecraft] K3 problem

[Clark Macaulay]

Jim,

In my view, that is a very wise decision.  I'm 77 yrs of age ("seasoned
citizen") with shaky hands.  After observing just how small the SMD
components are when trying to install the K-pod mod for powering via its
data cable,  I realized my 6 year old K3 with an annoying problem (PWR
control mushy) needed to be sent home (aka The SPA).

What I hadn't expected was that they would also bring the radio up to the
latest specs by installing gold pins, installing the latest firmware (which
I thought I had done), repairing a LPA problem I didn't know I had, and
performing all of the calibrations (my POWER reading was significantly off,
they said).  Yes, it was a little expensive ($400), but well worth it, and
my K3 will now serve me well for many years to come.  You will not be
disappointed.

On Sat, Oct 26, 2019 at 9:35 AM Jim Leder  wrote:

> This is a follow up on the VFO B control problem with a friend’s older K3.
>
> Thanks to all the ideas and suggestions! I do agree that it is likely the
> infamous K3 connector problem. As I mentioned, the K3 is an older unit. The
> ham who it belongs to is 78 with bad eyes, and shaky hands. I’m 74 with bad
> eyes and shaky hands. Neither of us feels qualified to tear into it for
> what hopefully is the main issue. It could still be a bad encoder.
> Since he needs a few other things done with the unit, he made the decision
> to send it back to Elecraft and have qualified techs perform the repair.
> Painful and costly but necessary.
> When we did the hard reset, we hoped it would solve the B control problem.
> Well, it didn’t. Now we can’t even scroll through the CONFIG menus to put
> everything back as he had it.
>
> Doesn’t matter. It needs to go home.
>
> Thanks again for the valued suggestions!!
>
> 73 …
>
> Jim Leder … K8CXM
>
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> Message delivered to clark.macau...@gmail.com
>


-- 
73,

Clark, WU4B
QRPARCI #10815
SKCC #3892
NAQCC #5055
CWOPS #1869
Collins Collectors #AC90-12432
Southeastern DX Club 
North Georgia QRP Club 


*"It is vain to do with more what can be done with less."*
*Attributed to *William of Occam (1288 AD - 1348 AD)
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Re: [Elecraft] K3 problem

[George Thornton]

I want to echo my appreciation of Elecraft repair service.

I had my K3 in a few years ago after it malfunctioned during field use.

They also went through it and made all sorts of additions and calibrations.

Really well worth the moderate cost and inconvenience.

The unit continues to perform flawlessly.

-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of Clark Macaulay
Sent: Saturday, October 26, 2019 8:03 AM
To: Jim Leder 
Cc: Elecraft 
Subject: Re: [Elecraft] K3 problem

Jim,

In my view, that is a very wise decision.  I'm 77 yrs of age ("seasoned
citizen") with shaky hands.  After observing just how small the SMD components 
are when trying to install the K-pod mod for powering via its data cable,  I 
realized my 6 year old K3 with an annoying problem (PWR control mushy) needed 
to be sent home (aka The SPA).

What I hadn't expected was that they would also bring the radio up to the 
latest specs by installing gold pins, installing the latest firmware (which I 
thought I had done), repairing a LPA problem I didn't know I had, and 
performing all of the calibrations (my POWER reading was significantly off, 
they said).  Yes, it was a little expensive ($400), but well worth it, and my 
K3 will now serve me well for many years to come.  You will not be disappointed.

On Sat, Oct 26, 2019 at 9:35 AM Jim Leder  wrote:

> This is a follow up on the VFO B control problem with a friend’s older K3.
>
> Thanks to all the ideas and suggestions! I do agree that it is likely 
> the infamous K3 connector problem. As I mentioned, the K3 is an older 
> unit. The ham who it belongs to is 78 with bad eyes, and shaky hands. 
> I’m 74 with bad eyes and shaky hands. Neither of us feels qualified to 
> tear into it for what hopefully is the main issue. It could still be a bad 
> encoder.
> Since he needs a few other things done with the unit, he made the 
> decision to send it back to Elecraft and have qualified techs perform the 
> repair.
> Painful and costly but necessary.
> When we did the hard reset, we hoped it would solve the B control problem.
> Well, it didn’t. Now we can’t even scroll through the CONFIG menus to 
> put everything back as he had it.
>
> Doesn’t matter. It needs to go home.
>
> Thanks again for the valued suggestions!!
>
> 73 …
>
> Jim Leder … K8CXM
>
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> This list hosted by: http://www.qsl.net Please help support this email 
> list: http://www.qsl.net/donate.html Message delivered to 
> clark.macau...@gmail.com
>


--
73,

Clark, WU4B
QRPARCI #10815
SKCC #3892
NAQCC #5055
CWOPS #1869
Collins Collectors #AC90-12432
Southeastern DX Club <http://www.sedxc.org> North Georgia QRP Club 
<http://www.nogaqrp.org>


*"It is vain to do with more what can be done with less."* *Attributed to 
*William of Occam (1288 AD - 1348 AD) 
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Re: [Elecraft] K3 problem

[Grant Youngman]

And if you don’t have a good condition original shipping container for the K3/S 
(or P3), it’s worth the small cost and wait to order a new one with the 
internal foam supports from Elecraft.  The shipping containers are available on 
the spare parts menu.

Grant NQ5T

> On Oct 26, 2019, at 12:36 PM, George Thornton 
>  wrote:
> 
> I want to echo my appreciation of Elecraft repair service.
> 
> I had my K3 in a few years ago after it malfunctioned during field use.
> 
> They also went through it and made all sorts of additions and calibrations.
> 
> Really well worth the moderate cost and inconvenience.
> 
> The unit continues to perform flawlessly.
> 

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Re: [Elecraft] K3 problem

[Clark Macaulay]

And, if you don't buy one of the new cartons/inserts, you'll get one when
they ship it back to you!

On Sat, Oct 26, 2019 at 12:47 PM Grant Youngman 
wrote:

> And if you don’t have a good condition original shipping container for the
> K3/S (or P3), it’s worth the small cost and wait to order a new one with
> the internal foam supports from Elecraft.  The shipping containers are
> available on the spare parts menu.
>
> Grant NQ5T
>
> > On Oct 26, 2019, at 12:36 PM, George Thornton <
> gthorn...@thorntonmostullaw.com> wrote:
> >
> > I want to echo my appreciation of Elecraft repair service.
> >
> > I had my K3 in a few years ago after it malfunctioned during field use.
> >
> > They also went through it and made all sorts of additions and
> calibrations.
> >
> > Really well worth the moderate cost and inconvenience.
> >
> > The unit continues to perform flawlessly.
> >
>
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-- 
73,

Clark, WU4B
QRPARCI #10815
SKCC #3892
NAQCC #5055
CWOPS #1869
Collins Collectors #AC90-12432
Southeastern DX Club 
North Georgia QRP Club 


*"It is vain to do with more what can be done with less."*
*Attributed to *William of Occam (1288 AD - 1348 AD)
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Re: [Elecraft] K3 Problem

[Don Wilhelm]

Phil,

The loss in coax (especially a long run) *will* reduce the SWR measured 
at the shack end.  If the loss is great enough and a fault is far enough 
down the coax line, the  measured SWR can be quite low, even 1.0:1.  In 
other words, the SWR at the shack end will always be less than at the 
antenna - just how much lower depends on the loss in the coax.

73,
Don W3FPR

Phil LaMarche wrote:
> Thank you to all the wonderful hams who sent emails to help me this weekend.
> Thinking I had a K3 problem and really didn't.  However, I don't
> understand.I wasn't able to connect with anyone for 7-28 MHz even though
> the Pal Star watt meter showed 100 watts and little SWR.  In desperation and
> eliminating other possibilities, I put an analyzer on the coax to the beam
> and it measured infinity across it's range.  I obviously have a coax or beam
> problem.  BUT, why did the power meter read as it did?  If that had been
> screwy, I would have immediately checked the antenna.  Antenna guys are
> coming Friday and soon I'll be happily on the air again.
>  
> What a wonder reflector and company to offer help for what ever the problem.
> I'm so glad I have a K3.
>  
> Phil
>  
>
> Philip LaMarche 
> LaMarche Enterprises, Inc.
>   www.instantgourmetspices.com
>
> www.w9dvm.com   
> 800-395-7795 pin 02 
> 727-944-3226 
> FAX 727-937-8834 
> NASFT 30210 
>
> K3  #1605
>
> CCA  AC98  00827
> W9DVM 
>
>
>  
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RE: [Elecraft] K3 Problem

[Ed Muns]

> When I am using VOX in SSB mode using headphones and I engage 
> the NR feature my speaker cycles on and off.  This happens 
> when using the F1-4 NR settings and goes away as I make the 
> NR settings more sever (ie., F2 to 4-4).  Anyone else notice 
> this?  I think it mignt be since I downloaded the latest 
> firmware UC 01.69.  Best 73, Steve W0SZ.

Yes.  It's been fixed in the release being tested now.

73,
Ed - W0YK

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Re: [Elecraft] K3 Problem

[David Ferrington, M0XDF]

Yep, known problem with latest firmware - fixed before and came back -
Elecraft are aware and working on fix.
See 


And I see that Greg has put an update in the Wiki to note the fix will be
released soon. Great Greg and thanks very much for both the fix and noting
in Wiki.

On 02/03/2008 22:22, "Steve Zumbrun" <[EMAIL PROTECTED]> sent:

> When I am using VOX in SSB mode using headphones and I engage the NR feature
> my speaker cycles on and off.  This happens when using the F1-4 NR settings
> and goes away as I make the NR settings more sever (ie., F2 to 4-4).  Anyone
> else notice this?  I think it mignt be since I downloaded the latest
> firmware UC 01.69.  Best 73, Steve W0SZ.
> 
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[Elecraft] Elecraft K3 problem

[LA7NO]

Hello,

The K3 suddenly stopped working.
One day all OK, the next day serious problems.

Serial no.: 07818.
It has ATU and 100 W PA installed, and also a P3 connected.
Both K3 and P3 were earlier well calibrated.
Supply: 14,5 VDC.

Symptoms:
- Rx seriously reduced sensitivity, only strong signals to be heard.
- No Tx output. Tuning not successful, no SWR indicated (only the 3
hyphens).
- Same on all bands.
- All displays, controls and menus apparently working normal.
- Mic-gain & ALC normal indication on SSB.

All menu settings seem to be OK.

Connected an XG3 and injected a -73 dBm signal.
It showed up on all bands with signal level about -100 dBm, so around 30 dB
attenuation.

Connected a LP-100A and a 50 ohm dummy load.
Whatever we tried, the LP-100A indicated zero power out on all bands.
Same on both Ant1 and Ant2.
Bypassed the ATU: no change.
Set power to < 10 W, effectively bypassing the PA: no change.

It is clearly something that is common for both Rx and Tx.
It is independent of the selected band.
Apparently not related to ATU or PA.

So, it could be some relay problem, or related to the SWR bridge or
LP-filters.

Hope you can give some helpful ideas on how to proceed.

Best regards & 73 from Norway,

Per-Tore / LA7NO




-
73,

Per-Tore / LA7NO

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[Elecraft] Elecraft K3 Problem

[Per-Tore Aasestrand]

 Hi,

Still working on finding a solution to the below problem.

Elecraft support said:

"Since you are hearing signals, on frequency is presumed, only attenuated
~30 dB,
The SYNTH circuit is not the first place I would look."

Any suggestion wrt where to look first?
I guess it must be somewhere on the RF Board.

Where can I find the PCB layouts with components id's?

73,

Per-Tore
LA7NO

---

The K3 suddenly stopped working.
One day all OK, the next day serious problems.

Serial no.: 07818.
It has ATU and 100 W PA installed, and also a P3 connected.
Both K3 and P3 were earlier well calibrated.
Supply: 14,5 VDC.

Symptoms:
- Rx seriously reduced sensitivity, only strong signals to be heard.
- No Tx output. Tuning not successful, no SWR indicated (only the 3
hyphens).
- Same on all bands.
- All displays, controls and menus apparently working normal.
- Mic-gain & ALC normal indication on SSB.

All menu settings seem to be OK.

Connected an XG3 and injected a -73 dBm signal.
It showed up on all bands with signal level about -100 dBm, so around 30 dB
attenuation.

Connected a LP-100A and a 50 ohm dummy load.
Whatever we tried, the LP-100A indicated zero power out on all bands.
Same on both Ant1 and Ant2.
Bypassed the ATU: no change.
Set power to < 10 W, effectively bypassing the PA: no change.

It is clearly something that is common for both Rx and Tx.
It is independent of the selected band.
Apparently not related to ATU or PA.

So, it could be some relay problem, or related to the SWR bridge or
LP-filters.

Hope you can give some helpful ideas on how to proceed.
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Re: [Elecraft] K3 problem

[Bill W4ZV]

Jerry K8RA wrote:
> 
> I wish I had a set of circuit diagrams.
> 

http://www.elecraft.com/manual/K3_Schematics_Jun_2010.pdf

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Re: [Elecraft] K3 problem

[Willis]

Jerry it sounds like a possible power supply problems.  Have you tried a 
different supply?

Sent from my iPhone

On Aug 16, 2010, at 11:28, "Jerry Pittenger"  wrote:

> Well it looks like I have a problem.There is an intermittent buzz on the
> speaker audio.   When I turn on the radio it works perfectly.  But after a
> few minutes a strong buzz overlays the audio.  It is sever.  You can hear
> the stations under the buzz.   If I turn the radio off and immediately back
> on, the buzz is still there.  However if I leave the radio off for 3 or 4
> minutes and turn it on, it is fine for a few minutes and then the buzz pops
> back on.   Also keying the radio on CW also seems to fire up the receiver
> buzz.   Note that it is okay on a pair of headphones.  It is like it is
> going into oscillation.  Everything else on the radio seems normal. 
> 
> 
> 
> Any suggestions?I suspect a component in the audio amplifier.   Does the
> headphone jack take the audio signal before it hits the main audio amp?
> I wish I had a set of circuit diagrams.
> 
> 
> 
> Jerry K8RA
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> ===
> Email scanned by PC Tools - No viruses or spyware found.
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Re: [Elecraft] K3 problem

[Don Wilhelm]

  David,
Have you followed the steps in the manual for this error?  If not, do 
that first - let the K3 warm up before doing this calibration..
If it persists, try doing the Reference Oscillator calibration (use 
method 2).

73,
Don W3FPR

On 9/8/2010 7:29 PM, David F. Reed wrote:
>My K3 (serial number 1476) was working fine this morning, but started
> exhibiting a problem this afternoon...
>
> I occasionally get a "ERR PL1" message on the screen; I have the
> following behavior:
>
> 1. other stations report my transmission is off frequency or garbled.
> 2. sometimes the receive acts like there is no antenna connected
>(Noise floor at -140 db, as opposed to the more normal -120 db on
>40 meters)
> 3. Sometimes the TUNE produces 0 watts out (set to 100); other times
>it gives the full 100.
>
> I suspect all these symptoms are related to the error message.
>
> I note that the rig is warm (on for a few hours) but not hot; I don't
> know if it will do this from cold, but I will try to find that out (rig
> is off now waiting to cool down to about 80 deg. F.).
>
> Any thoughts or suggestions?
>
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Re: [Elecraft] K3 problem

[Brett Howard]

One of the K3 mods for the synth board was supposed to fix this
Did you get your K3 before this mod was put in place:

http://www.elecraft.com/K3/mods/ELECRAFT_Application_Note_KSYN3_ALC_Rev_A.pdf

~Brett (N7MG)

On Wed, Sep 8, 2010 at 4:29 PM, David F. Reed  wrote:
>  My K3 (serial number 1476) was working fine this morning, but started
> exhibiting a problem this afternoon...
>
> I occasionally get a "ERR PL1" message on the screen; I have the
> following behavior:
>
>   1. other stations report my transmission is off frequency or garbled.
>   2. sometimes the receive acts like there is no antenna connected
>      (Noise floor at -140 db, as opposed to the more normal -120 db on
>      40 meters)
>   3. Sometimes the TUNE produces 0 watts out (set to 100); other times
>      it gives the full 100.
>
> I suspect all these symptoms are related to the error message.
>
> I note that the rig is warm (on for a few hours) but not hot; I don't
> know if it will do this from cold, but I will try to find that out (rig
> is off now waiting to cool down to about 80 deg. F.).
>
> Any thoughts or suggestions?
>
> Thanks and 73 de Dave, W5SV
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[Elecraft] Elecraft K3 Problem!!

[NH7VW]

Hello Glenn!

I found an old Thread from you in the Elecraft reflector. On the 28th of March 
2009 you wrote that your K3 failed to load the FPF at the address x0040!!! I 
have the same problem now with my K3!!!

Did you get it back to life? If yes, what´s the solution??

Hope to hear from you!!!

73s Alex OE6ASF, NH7VW, HB9TSF
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Re: [Elecraft] K3 Problem

[Steve Ellington]

So in effect, you're loosing your modulation as if the mic. came loose.
Can you get a carrier when keying or is it just SSB that's acting up?
Steve
N4LQ
- Original Message - 
From: "Phil LaMarche" 
To: 
Sent: Saturday, June 12, 2010 12:52 PM
Subject: [Elecraft] K3 Problem


> Let me word my request differently.  The only thing that shuts down is the
> wattage.  Goes from 95 to 0 after 30 seconds of transmitting.  Re key and 
> it
> does the same thing.  SSB.  Sorry for the confusion.  SWR 1.7:1.
>
> Philip LaMarche
>
> LaMarche Enterprises, Inc
> p...@lamarcheenterprises.com
> www.LaMarcheEnterprises.com <http://www.lamarcheenterprises.com/>
>
> 727-944-3226
> 727-937-8834 Fax
> 727-510-5038 Cell
>
> www.w9dvm.com <http://www.w9dvm.com/>
>
> K3 #1605
>
> CCA 98-00827
> CRA 1701
> W9DVM
>
>
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Re: [Elecraft] K3 Problem

[Ken Roberson]

Phil,

Did you try the dummy load ???

73 Ken K5DNL

-

--- On Sat, 6/12/10, Phil LaMarche  wrote:

> From: Phil LaMarche 
> Subject: [Elecraft] K3 Problem
> To: Elecraft@mailman.qth.net
> Date: Saturday, June 12, 2010, 12:12 PM
> Did a further test.  shuts down
> at 50 and 95 watts but not at 30 watts.
>  
> Phil
>  
> Philip LaMarche
>  
> LaMarche Enterprises, Inc
> p...@lamarcheenterprises.com
> www.LaMarcheEnterprises.com <http://www.lamarcheenterprises.com/>  
>  
> 727-944-3226
> 727-937-8834 Fax
> 727-510-5038 Cell 
>  
> www.w9dvm.com <http://www.w9dvm.com/> 
>  
> K3 #1605
>  
> CCA 98-00827
> CRA 1701
> W9DVM
>  
>  
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Re: [Elecraft] K3 Problem

[Bill W4ZV]

Dick, WN3R wrote
> With compression above 30

Wow!  The max I ever use is 24.  Microphones may vary but CMP=30 seems
awfully high.  

73,  Bill  W4ZV



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Re: [Elecraft] K3 Problem

[Jim]

I was thinking the same thing. I never go above 15 CMP. Mic is set to 30 and I 
easily get 100 watts PEP.

I would think a CMP set to 30 the receiving station could hear spiders crawling 
in your room.

KE4WY Jim



Sent from my iPod

On Oct 27, 2012, at 5:37 AM, Bill W4ZV  wrote:

> Dick, WN3R wrote
>> With compression above 30
> 
> Wow!  The max I ever use is 24.  Microphones may vary but CMP=30 seems
> awfully high.  
> 
> 73,  Bill  W4ZV
> 
> 
> 
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Re: [Elecraft] K3 Problem

[Nate Bargmann]

* On 2012 27 Oct 05:25 -0500, Jim wrote:
> I was thinking the same thing. I never go above 15 CMP. Mic is set to
> 30 and I easily get 100 watts PEP.

I agree and have my cmp set to 13 and mic to 30 and I get good audio
reports which I consider something of a miracle!

Last night I tuned across 15m for a bit and there were some signals with
very bad audio.  One was so poor that after a couple of minutes I still
didn't know what his call was.  He wasn't getting any answers which
should have been a clue.

A little is good.  More is not always better!

73, de Nate, N0NB >>

-- 

"The optimist proclaims that we live in the best of all
possible worlds.  The pessimist fears this is true."

Ham radio, Linux, bikes, and more: http://www.n0nb.us
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Re: [Elecraft] K3 Problem

[Fred Jensen]

I don't do much SSB but when I do I get 10 dB peak compression with the 
CMP set at 12.  I use a Heil Proset with the electret mic I got from 
Elecraft.  I regularly get unsolicited comments of "really good audio." 
  My TX equalizer is set to the "K9YC recommendations."  I can't imagine 
what it would sound like at CMP=30, but I bet it wouldn't be good.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2013 Cal QSO Party 5-6 Oct 2013
- www.cqp.org

On 10/27/2012 3:24 AM, Jim wrote:
> I was thinking the same thing. I never go above 15 CMP. Mic is set to
> 30 and I easily get 100 watts PEP.
>
> I would think a CMP set to 30 the receiving station could hear
> spiders crawling in your room.
>
> KE4WY Jim
>
>
>
> Sent from my iPod
>
> On Oct 27, 2012, at 5:37 AM, Bill W4ZV 
> wrote:
>
>> Dick, WN3R wrote
>>> With compression above 30
>>
>> Wow!  The max I ever use is 24.  Microphones may vary but CMP=30
>> seems awfully high.
>>
>> 73,  Bill  W4ZV

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Re: [Elecraft] K3 Problem

[David Gilbert]

Include me in that sentiment.  I have several times monitored my audio 
while adjusting the compression.  CMP=20 gives great audio quality and 
CMP=25 gives great contest audio.   CMP=30 generates significant audio 
artifacts without any better intelligibility.   In my opinion, CMP above 
30 merely adds trash to the bands.

73,
Dave   AB7E



On 10/27/2012 2:37 AM, Bill W4ZV wrote:
> Dick, WN3R wrote
>> With compression above 30
> Wow!  The max I ever use is 24.  Microphones may vary but CMP=30 seems
> awfully high.
>
> 73,  Bill  W4ZV
>
>
>
> --
> View this message in context: 
> http://elecraft.365791.n2.nabble.com/K3-Problem-tp7564622p7564650.html
> Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] K3 Problem

[Keith Heimbold]

I operate my K3 with compression of 14 and mic gain at 34-38 depending on 
conditions and environment (contesting, DXing or ragchewing). With the Yamaha 
MDE-100 microphone I get good audio reports. Guess each microphone has slightly 
different settings for optimum Audio quality.

Keith 
AG6AZ

Sent from my iPhone please excuse typos

On Oct 27, 2012, at 9:45 AM, "David Gilbert"  wrote:

> 
> Include me in that sentiment.  I have several times monitored my audio 
> while adjusting the compression.  CMP=20 gives great audio quality and 
> CMP=25 gives great contest audio.   CMP=30 generates significant audio 
> artifacts without any better intelligibility.   In my opinion, CMP above 
> 30 merely adds trash to the bands.
> 
> 73,
> Dave   AB7E
> 
> 
> 
> On 10/27/2012 2:37 AM, Bill W4ZV wrote:
>> Dick, WN3R wrote
>>> With compression above 30
>> Wow!  The max I ever use is 24.  Microphones may vary but CMP=30 seems
>> awfully high.
>> 
>> 73,  Bill  W4ZV
>> 
>> 
>> 
>> --
>> View this message in context: 
>> http://elecraft.365791.n2.nabble.com/K3-Problem-tp7564622p7564650.html
>> Sent from the Elecraft mailing list archive at Nabble.com.
>> __
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Re: [Elecraft] K3 Problem

[Joe Subich, W4TV]

> CMP=20 gives great audio quality and CMP=25 gives great contest
> audio. CMP=30 generates significant audio artifacts without any
> better intelligibility.

My threshold for "crap" is a little lower.  CMP=20 is fine, the
audio gets "rough" much above that and by CMP=25 it is badly
distorted (even with PWR=0 so it's not RF feedback).

73,

... Joe, W4TV


On 10/27/2012 12:43 PM, David Gilbert wrote:
>
> Include me in that sentiment.  I have several times monitored my audio
> while adjusting the compression.  CMP=20 gives great audio quality and
> CMP=25 gives great contest audio.   CMP=30 generates significant audio
> artifacts without any better intelligibility.   In my opinion, CMP above
> 30 merely adds trash to the bands.
>
> 73,
> Dave   AB7E
>
>
>
> On 10/27/2012 2:37 AM, Bill W4ZV wrote:
>> Dick, WN3R wrote
>>> With compression above 30
>> Wow!  The max I ever use is 24.  Microphones may vary but CMP=30 seems
>> awfully high.
>>
>> 73,  Bill  W4ZV
>>
>>
>>
>> --
>> View this message in context: 
>> http://elecraft.365791.n2.nabble.com/K3-Problem-tp7564622p7564650.html
>> Sent from the Elecraft mailing list archive at Nabble.com.
>> __
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Re: [Elecraft] K3 Problem

[Lu Romero]

Yes, I also agree that CMP 30 is a bit much.  On my rig, the
"open ragchew wide dynamic range" setting is 18 and the "in
your face contest compression punch" setting is 24.  Any
more than 25, and you start to reach the point of
diminishing returns in inteligibility.  I use the Yamaha
Boomset here, so other mike's milage may vary.

Also, pay attention to the mic level setting, which is also
important. Both settings interact grately. Set the mic level
first, then add CMP to the mix.  Not the other way around.

You shouldnt be afraid to light up all the lights on the
right side of the meter consistently with the last light
flickering with mod peaks.  This is really an amazingly
clean audio chain we are working with. But as in everything,
too much of a good thing is often detrimental.

IMO, K3's audio processing chain seems to like consistent
input levels (still wish we could have attack and decay
handles for CMP, Lyle!).  The more consistent the input, by
close talking, by keeping control of your voice, even if it
is a P5 pileup, by managing the overall gain of your audio
chain, and by keeping external noise down, the more
modulation density you will get from this radio without
sounding like something from Guns and Roses record.

Lu - W4LT (currently /HK3)
K3, K1, P3  

==

Message: 3
Date: Sat, 27 Oct 2012 09:43:29 -0700
From: David Gilbert 
Subject: Re: [Elecraft] K3 Problem
To: elecraft@mailman.qth.net
Message-ID: <508c0f31.9060...@cis-broadband.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed


Include me in that sentiment.  I have several times
monitored my audio 
while adjusting the compression.  CMP=20 gives great audio
quality and 
CMP=25 gives great contest audio.   CMP=30 generates
significant audio 
artifacts without any better intelligibility.   In my
opinion, CMP above 
30 merely adds trash to the bands.

73,
Dave   AB7E


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Re: [Elecraft] K3 Problem

[Edward R Cole]

I run COMP=20 on my K3 with a Heil HM10-5 desk mic (older model I 
bought in 1998 with wide freq element).  Get great audio reports on 
SSB on either HF or 2m-SSB.  I have only modified Tx equalization for 
three lowest audio freq bands as mainly running conversational 
operating on a couple HF Nets and most operating is VHF+.

I checked my COMP on the KX3 and it is only set to 8 with the MH3 
hand-mic.  On FM I had reports of overdeviation so lowered mic gain 
to 15.  SSB mic level appears to work at that level without complaint.

73, Ed - KL7UW, WD2XSH/45 (500-KHz)

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Re: [Elecraft] K3 problem

[Dave Hachadorian]

Try this:
http://marc.info/?l=elecraft&m=144267531705514&w=2


Dave Hachadorian, K6LL
Yuma, AZ


-Original Message- 
From: n...@n1ix.com

Sent: Monday, February 8, 2016 10:09 AM
To: 'Elecraft'
Subject: [Elecraft] K3 problem


My K3 developed a problem this weekend.
None of the front panel pushbuttons work correctly.

For example:
ATU tune   changes the  AGC value
ANT = NB2
RX  Ant = NB
PRE = ATU
SPOT = HI .Lo cut
CWT = CMP
etc.
Other pushbutton don't work at all.
A/B REV A->B, Band, Mode

The only button that works correctly is the "Power"

I've done a "parameter reset" I had to use the spot button 
instead of

holding in the Shift knob.
I also tried reloading firmware,
Any other suggestions ?

Dave N1IX

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Re: [Elecraft] K3 problem

[n1ix]

Problem is fixed thanks to Dave, K6LL and Elecraft support for the
suggestions. Thanks for the great support and a fantastic reflector!
If anyone need the fix it is at. 

http://marc.info/?l=elecraft&m=144267531705514&w=2

Dave N1IX

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
n...@n1ix.com
Sent: Monday, February 08, 2016 12:09 PM
To: 'Elecraft' 
Subject: [Elecraft] K3 problem


My K3 developed a problem this weekend.
None of the front panel pushbuttons work correctly.

For example:
ATU tune   changes the  AGC value
ANT = NB2
RX  Ant = NB
PRE = ATU
SPOT = HI .Lo cut
CWT = CMP
etc.
Other pushbutton don't work at all.
A/B REV A->B, Band, Mode

The only button that works correctly is the "Power"

I've done a "parameter reset" I had to use the spot button instead of
holding in the Shift knob.
I also tried reloading firmware,
Any other suggestions ?

Dave N1IX

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Re: [Elecraft] K3 problem

[Mike Reublin]

Jim -
You can download the manual. http://www.elecraft.com/K2_Manual_Download_Page.htm

73, Mike NF4L

> On Oct 25, 2014, at 1:06 PM, Jim Bobo  wrote:
> 
> Just got my antenna up after 3 years of the air and tried the K3. It just 
> shuts down when keyed. Was back to the factory several months ago and not 
> been turned on since. Have a manual somewhere but can't put my hands on it. 
> Any help would be appreciated.
> 
> 73, Jim, W5ODD
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Re: [Elecraft] K3 problem

[Vic Rosenthal 4X6GP/K2VCO]

Could the power supply be shutting down for some reason? Measure the PS 
voltage when this happens.


Also, try transmitting into a dummy load to eliminate possible 
RF-in-the-shack issues.


On 25 Oct 2014 20:06, Jim Bobo wrote:

Just got my antenna up after 3 years of the air and tried the K3. It
just shuts down when keyed. Was back to the factory several months ago
and not been turned on since. Have a manual somewhere but can't put my
hands on it. Any help would be appreciated.

73, Jim, W5ODD



--
73,
Vic, 4X6GP/K2VCO
Rehovot, Israel
http://www.qsl.net/k2vco/
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Re: [Elecraft] K3 problem

[Don Wilhelm]

Jim,

Check the power supply to see if it is shutting off - if it not that, 
try the K3 into a dummy load.  If the problem goes away with the dummy 
load, the most likely reason is RF in the shack.


I did not think I had a problem with RF in the shack until I recently 
tried working on 10 meters.  At power levels above 75 watts, the K3 
would turn off all by itself - but no problem into a dummy load, so I 
have to get some ferrite on that antenna.


If RF is causing it, take heed of the wealth of information for 
attacking it in K9YC's paper on dealing with RFI at 
http://audiosystemsgroup.com/RFI-Ham.pdf


73,
Don W3FPR

On 10/25/2014 1:06 PM, Jim Bobo wrote:
Just got my antenna up after 3 years of the air and tried the K3. It 
just shuts down when keyed. Was back to the factory several months ago 
and not been turned on since.


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[Elecraft] K3 Problem Solved!!!!

[pastormg2]

Well, it seems that the prolific cables do work with windows 10 and the K3. 
Evidently you can't connect the cable to the P3 and then to the K3. It must be 
connected directly to the K3. Once I did that the firmware loaded and 
everything is back to normal. Hopefully Howard at Elecraft will read this. 
Thanks to all the people that told me to connect the cable directly to the K3. 
Mark Griffin, KB3Z
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Re: [Elecraft] k3 problem

[Harry Yingst via Elecraft]

As per the K3 Manual Rev D10, Page 70

ERR TXF Invalid transmit crystal filter bandwidth

The crystal filter selected for TX (with CONFIG:FLTX) is either too narrow or 
too wide.
You must specify a filter that is 2.7 or 2.8 kHz wide for CW/DATA/SSB, 6 kHz 
for AM, and 13.0 kHz for FM).


That being said it could be a mis-configuration, or possible Corrupt firmware 
in the radio (Speculation from reading past messages)





  From: Bob Gibson via Elecraft 
 To: "elecraft@mailman.qth.net"  
 Sent: Saturday, December 31, 2016 5:40 PM
 Subject: [Elecraft] k3 problem
   
Hi Fellows.. I have a friend that I'm trying to help.. he is 85 years old and 
has a k3. He turned on the radio today and got a err exf message... or he may 
have said err txf. not sure.. I told him I would try to help him.. he is in 
OKLA and I'm in Florida so it is not easy.. Can someone please tell me what the 
message means.. and I will call him back. He is a very dear ham buddy of 60 
years. Thanks    73s Bob W5RG
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Re: [Elecraft] k3 problem

[Don Wilhelm]

Bob,

The list of error codes start on page 68 of the
K3 manual.
ERR EFX does not exist, but ERR TXF is valid - it says the filter 
configured for transmit is not valid.
That is relatively easy to see with K3 Utility - Configuration tab, 
Configure Xtal Filters.

The filter for CW, DATA, SSB must be the 2.7 or 2.8 kHz filter.
For ESSB it needs to be the 6Khz filter and AM can use either the 6kHz 
or 13kHz filter

And for FM it must be the 13kHz filter.

Is there any chance he has turned on ESSB mode in the menu and does not 
have the 6kHz filter installed?


73,
Don W3FPR

On 12/31/2016 5:40 PM, Bob Gibson via Elecraft wrote:

Hi Fellows.. I have a friend that I'm trying to help.. he is 85 years old and 
has a k3. He turned on the radio today and got a err exf message... or he may 
have said err txf. not sure.. I told him I would try to help him.. he is in 
OKLA and I'm in Florida so it is not easy.. Can someone please tell me what the 
message means.. and I will call him back. He is a very dear ham buddy of 60 
years. Thanks73s Bob W5RG

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Re: [Elecraft] k3 problem

[Don Wilhelm]

Bob,

He will have to wait until Tuesday - Elecraft is closed Monday.
In the meantime, he should look at what is enabled for his transmit 
filters using K3 Utility.  He needs to know what filters are installed.
There should be a sticker on the inside of the top cover indicating 
which filters are installed.


73,
Don W3FPR

On 12/31/2016 7:13 PM, Bob Gibson via Elecraft wrote:

Well I guess he will have to call on Monday to Elecraft to get help.. over the 
phone will just not work.. Thanks to all who replied!!73s Bob W5RG
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[Elecraft] K3 problem "ERR DLL"

[Ryszard Tymkiewicz]

I have been using K3 for MANY years and the first time I got a message 
"ERROR DLL" ..there was a high noise level and I was not able to tune to 
stations. It was in my second QTH..when I got back home seems everything 
is OK. I don't know if it is a problem with contacts? If so which ones I 
should clean?

                                 73 Rys
    SP5EWY
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Re: [Elecraft] K3 problem solved.!!!

[G]

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Re: [Elecraft] K3 problem solved.!!!

[ws6x.ars]

Josep,
Apparently the 100 Watt PA has been disabled. Go to "Config" (Press and hold 
MENU), rotate VFO B until you see "KPA3", then rotate VFO A to select "PA   
nor."
Remember, it is always a good idea to back up your K3 configuration. Use the K3 
Utility to do a Config Backup. If you ever have a problem, you can always 
restore the K3 from that configuration file.
Buena suerte!
Jim - WS6X

-Original Message-
From: elecraft-boun...@mailman.qth.net On Behalf Of Josep via Elecraft
Sent: Monday, April 04, 2022 6:09 AM
To: elecraft@mailman.qth.net; cw...@groups.io; foc_memb...@googlegroups.com
Subject: [Elecraft] K3 problem solved.!!!

Howdy guys, good new here.!!!
just to let y´all know that I have finally solved the problem in my K3..!!!
A Ham friend has given me a old cable Serial-USB and it has worked.!! The K3 is 
now running again.! Very happy here so I don´t need to send it to Italy.!
Theres one thing I don´t understand and it is related with the PWR, I can see 
only 12W.! Why it´s not sending 100W like the first days I used it.? I does not 
go over 12W (?), Can that be due to high SWR.? The tuner has matched the 
antenna but...(?) Not 100W out by now, any tips.?
Thank you so much for all your help.!


73,
JosepEA6BFMyWebsiteBUG #256  -  CWOps #3072  -  FOC #2182 (ex 1724) 
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Re: [Elecraft] K3 problem solved.!!!

[Keith Trinity WE6R]

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Re: [Elecraft] K3 problem solved.!!!

[Keith Trinity WE6R]

Don't forget to power-cycle the radio after changing to "PA nor".
(any option that is installed and recognized at power-on must have a 
power cycle when you change it's install status).

Keith WE6R K3/K4 Tech

Apparently the 100 Watt PA has been disabled. Go to "Config" (Press 
and hold MENU), rotate VFO B until you see "KPA3", then rotate VFO A 
to select "PA nor."

Jim - WS6X

I can see only 12W.!
Josep EA6BF


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[Elecraft] K3:Problem with KPA3

[Michael van Hauten]

hi Folks,
my K3 works fine in the Low power mode. But when setting power to more than 
12W, i hear the relay switching but i get no output power, the dc power goes to 
20A  What happens? In the menue, KPA3 is set to nor. Do i have a short in the 
KPA3 or ist the problem a Menue setting?
Thanks for your help.
Michael, DC0ZO
K3 #1999___
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Re: [Elecraft] Elecraft K3 problem

[Wes]

May be a LO problem.  Check all of the TMP cables.

Wes  N7WS



On 7/27/2020 5:50 AM, LA7NO wrote:

Hello,

The K3 suddenly stopped working.
One day all OK, the next day serious problems.

Serial no.: 07818.
It has ATU and 100 W PA installed, and also a P3 connected.
Both K3 and P3 were earlier well calibrated.
Supply: 14,5 VDC.

Symptoms:
- Rx seriously reduced sensitivity, only strong signals to be heard.
- No Tx output. Tuning not successful, no SWR indicated (only the 3
hyphens).
- Same on all bands.
- All displays, controls and menus apparently working normal.
- Mic-gain & ALC normal indication on SSB.

All menu settings seem to be OK.

Connected an XG3 and injected a -73 dBm signal.
It showed up on all bands with signal level about -100 dBm, so around 30 dB
attenuation.

Connected a LP-100A and a 50 ohm dummy load.
Whatever we tried, the LP-100A indicated zero power out on all bands.
Same on both Ant1 and Ant2.
Bypassed the ATU: no change.
Set power to < 10 W, effectively bypassing the PA: no change.

It is clearly something that is common for both Rx and Tx.
It is independent of the selected band.
Apparently not related to ATU or PA.

So, it could be some relay problem, or related to the SWR bridge or
LP-filters.

Hope you can give some helpful ideas on how to proceed.

Best regards & 73 from Norway,

Per-Tore / LA7NO




-
73,

Per-Tore / LA7NO

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Re: [Elecraft] Elecraft K3 problem

[John Simmons]

Did you check the antenna selection?


--
73,
-John NI0K
https://www.qrz.com/db/NI0K
LA7NO wrote on 7/27/2020 7:50 AM:

Hello,

The K3 suddenly stopped working.
One day all OK, the next day serious problems.

Serial no.: 07818.
It has ATU and 100 W PA installed, and also a P3 connected.
Both K3 and P3 were earlier well calibrated.
Supply: 14,5 VDC.

Symptoms:
- Rx seriously reduced sensitivity, only strong signals to be heard.
- No Tx output. Tuning not successful, no SWR indicated (only the 3
hyphens).
- Same on all bands.
- All displays, controls and menus apparently working normal.
- Mic-gain & ALC normal indication on SSB.

All menu settings seem to be OK.

Connected an XG3 and injected a -73 dBm signal.
It showed up on all bands with signal level about -100 dBm, so around 30 dB
attenuation.

Connected a LP-100A and a 50 ohm dummy load.
Whatever we tried, the LP-100A indicated zero power out on all bands.
Same on both Ant1 and Ant2.
Bypassed the ATU: no change.
Set power to < 10 W, effectively bypassing the PA: no change.

It is clearly something that is common for both Rx and Tx.
It is independent of the selected band.
Apparently not related to ATU or PA.

So, it could be some relay problem, or related to the SWR bridge or
LP-filters.

Hope you can give some helpful ideas on how to proceed.

Best regards & 73 from Norway,

Per-Tore / LA7NO




-
73,

Per-Tore / LA7NO

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Re: [Elecraft] Elecraft K3 problem

[LA7NO]

Would not that make the rx dead?
I can hear strong signals.
But the tx is giving no output.




-
73,

Per-Tore / LA7NO

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Re: [Elecraft] Elecraft K3 problem

[LA7NO]

Yes, as I said, same problem on both Ant1 & Ant2.




-
73,

Per-Tore / LA7NO

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Re: [Elecraft] Elecraft K3 problem

[George]

All Bands?
If receiving a strong station, is it on frequency?

73
George  AI4VZ

-Original Message- 
From: LA7NO 
Sent: Monday, July 27, 2020 8:50 AM 
To: elecraft@mailman.qth.net 
Subject: [Elecraft] Elecraft K3 problem 


Hello,

The K3 suddenly stopped working.
One day all OK, the next day serious problems.

Serial no.: 07818.
It has ATU and 100 W PA installed, and also a P3 connected.
Both K3 and P3 were earlier well calibrated.
Supply: 14,5 VDC.

Symptoms:
- Rx seriously reduced sensitivity, only strong signals to be heard.
- No Tx output. Tuning not successful, no SWR indicated (only the 3
hyphens).
- Same on all bands.
- All displays, controls and menus apparently working normal.
- Mic-gain & ALC normal indication on SSB.

All menu settings seem to be OK.

Connected an XG3 and injected a -73 dBm signal.
It showed up on all bands with signal level about -100 dBm, so around 30 dB
attenuation.

Connected a LP-100A and a 50 ohm dummy load.
Whatever we tried, the LP-100A indicated zero power out on all bands.
Same on both Ant1 and Ant2.
Bypassed the ATU: no change.
Set power to < 10 W, effectively bypassing the PA: no change.

It is clearly something that is common for both Rx and Tx.
It is independent of the selected band.
Apparently not related to ATU or PA.

So, it could be some relay problem, or related to the SWR bridge or
LP-filters.

Hope you can give some helpful ideas on how to proceed.

Best regards & 73 from Norway,

Per-Tore / LA7NO




-
73,

Per-Tore / LA7NO

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Re: [Elecraft] Elecraft K3 problem

[LA7NO]

Yes, all bands are the same.
Received signals are normal in all respects, except signal strength.

P-T




-
73,

Per-Tore / LA7NO

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Re: [Elecraft] Elecraft K3 problem

[Mike K8CN]

You might check the PIN diode T/R switch.  The high attenuation in RX mode
and no output power even when the 100 W PA is bypassed suggest that one or
more of the PIN diodes in the T/R switch have failed "open."

Mike, K8CN



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Re: [Elecraft] Elecraft K3 problem

[LA7NO]

Thanks, Mike.

I guess this is the MA4P PIN diodes D26 & D27.
Is there an easy way to check those?

P-T




-
73,

Per-Tore / LA7NO

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Re: [Elecraft] Elecraft K3 problem

[Martin Sole]

Hi,

What Serial number?

I have found on my own and a friends K3, both very low S/N around 300, 
that the KREF3 board has been the culprit for this exact problem.
First check the all the TMP cables to and from the KREF3 board and the 
synths. If all look good you should examine the K3REF board.


In both cases I have found 100nF (0.1uF) capacitors on this board to be 
essentially a low DC resistance. Look in particular at the 5 volt line. 
This supply affect IC6 the divide by 6 which provides both the second LO 
for the receivers and one input to the mixer for the TXIF1. Measure the 
resistance to ground from either side of L1 and L2 to figure out which 
capacitor is likely the cause of the problem.


Please keep the list posted on what you find.

Martin, HS0ZED



On 27/7/63 19:50, LA7NO wrote:

Hello,

The K3 suddenly stopped working.
One day all OK, the next day serious problems.

Serial no.: 07818.
It has ATU and 100 W PA installed, and also a P3 connected.
Both K3 and P3 were earlier well calibrated.
Supply: 14,5 VDC.

Symptoms:
- Rx seriously reduced sensitivity, only strong signals to be heard.
- No Tx output. Tuning not successful, no SWR indicated (only the 3
hyphens).
- Same on all bands.
- All displays, controls and menus apparently working normal.
- Mic-gain & ALC normal indication on SSB.

All menu settings seem to be OK.

Connected an XG3 and injected a -73 dBm signal.
It showed up on all bands with signal level about -100 dBm, so around 30 dB
attenuation.

Connected a LP-100A and a 50 ohm dummy load.
Whatever we tried, the LP-100A indicated zero power out on all bands.
Same on both Ant1 and Ant2.
Bypassed the ATU: no change.
Set power to < 10 W, effectively bypassing the PA: no change.

It is clearly something that is common for both Rx and Tx.
It is independent of the selected band.
Apparently not related to ATU or PA.

So, it could be some relay problem, or related to the SWR bridge or
LP-filters.

Hope you can give some helpful ideas on how to proceed.

Best regards & 73 from Norway,

Per-Tore / LA7NO




-
73,

Per-Tore / LA7NO

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Re: [Elecraft] Elecraft K3 problem

[Martin Sole]

Apologies, I just saw the serial number  7818, quite a bit newer so 
maybe not a failed capacitor, yet :)


Martin, H0ZED


On 27/7/63 23:32, Martin Sole wrote:

Hi,

What Serial number?

I have found on my own and a friends K3, both very low S/N around 300, 
that the KREF3 board has been the culprit for this exact problem.
First check the all the TMP cables to and from the KREF3 board and the 
synths. If all look good you should examine the K3REF board.


In both cases I have found 100nF (0.1uF) capacitors on this board to 
be essentially a low DC resistance. Look in particular at the 5 volt 
line. This supply affect IC6 the divide by 6 which provides both the 
second LO for the receivers and one input to the mixer for the TXIF1. 
Measure the resistance to ground from either side of L1 and L2 to 
figure out which capacitor is likely the cause of the problem.


Please keep the list posted on what you find.

Martin, HS0ZED



On 27/7/63 19:50, LA7NO wrote:

Hello,

The K3 suddenly stopped working.
One day all OK, the next day serious problems.

Serial no.: 07818.
It has ATU and 100 W PA installed, and also a P3 connected.
Both K3 and P3 were earlier well calibrated.
Supply: 14,5 VDC.

Symptoms:
- Rx seriously reduced sensitivity, only strong signals to be heard.
- No Tx output. Tuning not successful, no SWR indicated (only the 3
hyphens).
- Same on all bands.
- All displays, controls and menus apparently working normal.
- Mic-gain & ALC normal indication on SSB.

All menu settings seem to be OK.

Connected an XG3 and injected a -73 dBm signal.
It showed up on all bands with signal level about -100 dBm, so around 30 dB
attenuation.

Connected a LP-100A and a 50 ohm dummy load.
Whatever we tried, the LP-100A indicated zero power out on all bands.
Same on both Ant1 and Ant2.
Bypassed the ATU: no change.
Set power to < 10 W, effectively bypassing the PA: no change.

It is clearly something that is common for both Rx and Tx.
It is independent of the selected band.
Apparently not related to ATU or PA.

So, it could be some relay problem, or related to the SWR bridge or
LP-filters.

Hope you can give some helpful ideas on how to proceed.

Best regards & 73 from Norway,

Per-Tore / LA7NO




-
73,

Per-Tore / LA7NO

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Re: [Elecraft] Elecraft K3 problem

[Mike K8CN]

Hi Per-Tore,

I don't know if there's an easy way to check the PIN diodes in the T/R
switch, especially since the SMD components of the switch are mostly on the
underside of the RF board.  Here's where I would start:

1) Find spots on the RF board (top side) where you can measure the control
voltages 7R and 7T.  Verify that these change in opposition to each other,
i.e. if 7R is high, 7T should be low and vice-versa, when changing from RX
mode to TX mode and back.

2) Presuming that both voltages 7R and 7T behave properly in switching from
RX to TX mode and back, I would measure the voltage on the drain of Q7, the
MOSFET switch, when 7R is high.  Assertion of 7R should pull the Q7 drain
voltage low, which causes sufficient current to pass through both PIN diodes
D26 and D27 to enable the RX signal to pass through, presuming there is not
a problem with PIN diode D25.

3) It is possible that the Q7 drain voltage could be pulled low if only one
of PIN diodes D26 or D27 functions properly and the other has failed open,
so test (2) is not conclusive.

4) If you have a scope with a 10X probe, I would check for presence of RF on
the anode of PIN diode D43 when in TX mode - any frequency on the VFO within
the scope bandwidth should suffice.  D43 must be forward-biased by the 7T
voltage in order for RF drive to be coupled to the low power (10 Watt) PA
assembly (Z2 on the block diagram).  The fact that you have not been able to
detect any transmitted power in TX mode whether the 100 watt PA is bypassed
or not may indicate that the low power PA is not receiving drive from the
mixer.  The 7T voltage is supplied to the anode of D43 via the low power PA
input connector, but it's unlikely that the simple path internal to the low
power PA board is at fault, i.e. 7T is not reaching D43.

I haven't had my K3 opened up for many years, nor have I experienced the
problem you described, so I can't easily point out where to access the
circuit points mentioned above.

There is another set of PIN diode switches around the mixer, but I would
start with those closest to the low power PA before going further back up
the signal processing chain.

73,
Mike, K8CN



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Re: [Elecraft] Elecraft K3 problem

[Mike K8CN]

I agree with Martin's simpler hypothesis. The sudden change of behavior in
both TX and RX modes could well result from insufficient LO drive to either
the 1st or 2nd mixers.  Check that possibility before launching into
detailed testing of the PIN diode T/R switch.  It may be as simple as a
loose or corroded TMP connector.

Mike, K8CN



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Re: [Elecraft] Elecraft K3 problem

[Wes]

I thought I said that.

On 7/27/2020 10:34 AM, Mike K8CN wrote:

I agree with Martin's simpler hypothesis. The sudden change of behavior in
both TX and RX modes could well result from insufficient LO drive to either
the 1st or 2nd mixers.  Check that possibility before launching into
detailed testing of the PIN diode T/R switch.  It may be as simple as a
loose or corroded TMP connector.

Mike, K8CN



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Re: [Elecraft] Elecraft K3 problem

[Mike K8CN]

Aye, Wes, indeed you did!  I wasn't thinking of LO drive levels when I first
read your post, but was thinking of common signal paths for TX and RX
through the T/R switch and no deeper into the signal processing chain. 
Let's hope your and Martin's suggestion proves to be the true cause of
Per-Tore's issue.

Thanks, and 73,
Mike, K8CN



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Re: [Elecraft] Elecraft K3 problem

[Wes]

I've had TMP connectors badly corroded in my K3. See: 
https://groups.io/g/Elecraft-K3/album?id=37256


Wes  N7WS

On 7/27/2020 12:04 PM, Mike K8CN wrote:

Aye, Wes, indeed you did!  I wasn't thinking of LO drive levels when I first
read your post, but was thinking of common signal paths for TX and RX
through the T/R switch and no deeper into the signal processing chain.
Let's hope your and Martin's suggestion proves to be the true cause of
Per-Tore's issue.

Thanks, and 73,
Mike, K8CN


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Re: [Elecraft] Elecraft K3 problem

[Don Wilhelm]

That is why just looking for loose TMP connectors may not be sufficient.
While you are inside the K3, give all the TMP connectors a slight twist 
which should clear some of the corrosion.


73,
Don W3FPR

On 7/27/2020 6:25 PM, Wes wrote:
I've had TMP connectors badly corroded in my K3. See: 
https://groups.io/g/Elecraft-K3/album?id=37256


Wes  N7WS


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Re: [Elecraft] Elecraft K3 problem

[LA7NO]

Hi,

Checked all TMP connectors - no change.

P-T




-
73,

Per-Tore / LA7NO

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Re: [Elecraft] Elecraft K3 Problem

[Per-Tore Aasestrand]

Measured voltages over the PIN-diodes D26 & D27.
In Rx: 0,72 VDC. over both.
In Tx, the voltages varied a bit around 0,4-0,6 VDC.

While in TX, even with power set to 0,0W, one of the transistors in the LPA
is getting quite hot.
Cools down when switching over to Rx.

P-T


On Fri, 14 Aug 2020 at 17:59, Per-Tore Aasestrand  wrote:

> Hi,
>
> Still working on finding a solution to the below problem.
>
> Elecraft support said:
>
> "Since you are hearing signals, on frequency is presumed, only attenuated
> ~30 dB,
> The SYNTH circuit is not the first place I would look."
>
> Any suggestion wrt where to look first?
> I guess it must be somewhere on the RF Board.
>
> Where can I find the PCB layouts with components id's?
>
> 73,
>
> Per-Tore
> LA7NO
>
> ---
>
> The K3 suddenly stopped working.
> One day all OK, the next day serious problems.
>
> Serial no.: 07818.
> It has ATU and 100 W PA installed, and also a P3 connected.
> Both K3 and P3 were earlier well calibrated.
> Supply: 14,5 VDC.
>
> Symptoms:
> - Rx seriously reduced sensitivity, only strong signals to be heard.
> - No Tx output. Tuning not successful, no SWR indicated (only the 3
> hyphens).
> - Same on all bands.
> - All displays, controls and menus apparently working normal.
> - Mic-gain & ALC normal indication on SSB.
>
> All menu settings seem to be OK.
>
> Connected an XG3 and injected a -73 dBm signal.
> It showed up on all bands with signal level about -100 dBm, so around 30 dB
> attenuation.
>
> Connected a LP-100A and a 50 ohm dummy load.
> Whatever we tried, the LP-100A indicated zero power out on all bands.
> Same on both Ant1 and Ant2.
> Bypassed the ATU: no change.
> Set power to < 10 W, effectively bypassing the PA: no change.
>
> It is clearly something that is common for both Rx and Tx.
> It is independent of the selected band.
> Apparently not related to ATU or PA.
>
> So, it could be some relay problem, or related to the SWR bridge or
> LP-filters.
>
> Hope you can give some helpful ideas on how to proceed.
>
>
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Re: [Elecraft] Elecraft K3 Problem

[Mike K8CN]

Hi Per-Tore,

Can you identify which transistor (or other device) on the LPA module is
getting hot in transmit mode?

The drain terminals of MOSFET PA transistors Q4 and Q5 receive +12V
regardless of TX or RX mode, but the gate bias voltages are applied only in
TX mode.  Unless there's a problem with the bias regulator circuit (U1), the
RF amplifier chain on the LPA module should not be getting that warm. It is
also possible that one of the RF power transistors may be getting hot
because it is no longer making good thermal contact with the bottom cover
panel - it would be good to check the tightness of the three screws holding
those transistors against the bottom panel.

Is it possible for you to carefully extract the LPA module from the main RF
board? That requires removal of the rear panel of the bottom cover, and you
may need new thermal pads for the RF transistors if those pads are damaged
by removal of the cover panel.   If you can remove the LPA module, you might
try RX mode ONLY with the Power control set to 0 (to ensure that the KPA3 PA
is bypassed by its relay K1) and see if your receive sensitivity is
restored.  

The output side of the LPA module is nominally connected only in TX mode to
the antenna path via diode D1 on the LPA module, and if the D1 switch is
operating properly one would not expect the high attenuation of signals in
RX mode.  The output of the LPA module is also connected to the input of the
100 W PA module at the same point on the T/R switch circuit, but that module
is bypassed by relay K1 on the KPAIO3 board.

I'm not yet sure how the overheating of a device on the LPA board is
connected to the loss of RX sensitivity.  If the diode switch D1 on the LPA
module has failed shorted (unlikely), then it would leave the output
circuitry of the LPA module bridged across the antenna signal path in RX
mode.

Keep us posted on what you learn!

73,
Mike, K8CN





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Re: [Elecraft] Elecraft K3 Problem

[Per-Tore Aasestrand]

Hello group,

The K3 problem was quickly solved by Leo Duursma, PA0LMD.
An RF choke (RFC30) was open.
Thus, the diodes D25 did not get the required switching voltage.

Thanks to all that helped with evaluating the problem.

73,

Per-Tore
DL/LA7NO
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[Elecraft] K3 problem ERR PLL1

[Dick Grolleman]

Hi all

just noticed a strange problem on my K3
I did get EER PPL1 message and the k3 receiver was dead.
I can not get any power aslo from the K3.
Switched in the subreceiver and I hear stations there, the main commes alive 
again. PLL1 reads 4.3
PLL2 reads 2.2
if I turn theVFO I get the same error again and the receiver is dead again.

Any suggestions whta the problem could be?
K3 serial number 1168

73 de Dick PA3FQA
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Re: [Elecraft] K3 Problem Solved!!!!

[Don Wilhelm]

Mark,

I am glad to hear that you now have resolved the problem.  Sorry to hear 
of your frustration, but those computer COM port issues can indeed be 
frustrating at times.


The connection with the serial adapter cable to the P3 *should* have 
worked.  That means you may have to do some additional investigation.  I 
would first suspect the K3 to P3 RS-232 cable, or the connectors - make 
sure the jackscrews are properly fastened. Now that the crisis has 
passed, connect the K3 to P3 serial cable and connect your P3 to the USB 
to serial cable - then see if K3 Utility can find and connect with the 
K3.  If not, then troubleshoot that particular problem.


I would also suggest that you obtain another USB to serial adapter - 
preferably one with an FTDI chipset.  You should have a couple of USB to 
serial adapters on hand to use.  It is always good to have a spare to 
use just as a check - they are not that expensive and serve as good 
insurance when you can try an alternate.
I recall that you initially tried loading the firmware through a 
Microham device - that is a "NO-NO", disconnect the Microham and connect 
directly through a proper working USB to serial adapter when loading 
firmware.


I do not know anything about Windows 10 yet, but I recall reading 
somewhere that it is not always consistent in the COM port assignments 
when using USB to serial adapters - perhaps that was part of your 
problem - determining the correct COM port to be used in K3Utility.  
Yes, K3Utility can *usually* detect the correct COM port, but there are 
some occasions for 'false positive" responses that can occur when it 
does a port search, so it is best to determine which COM port your 
operating system has assigned for your USB to serial adapter and tell K3 
Utility to use that COM port.
In prior versions of Windows, it was as simple as going into Device 
Manager and looking at the Ports - unplug the adapter to see which port 
goes away, and then plug it back in and see which COM port is assigned 
to that adapter.  Windows 10 may be a bit different, but something 
similar should exist.


Howard may or may not see your post to the reflector - I don't know if 
he monitors the reflector in his "off hours".  It would be best to send 
him a direct email.  At this hour, he should be off enjoying his 
weekend, but I don't think he would not leave a customer "hanging" if 
you have had prior communications with him.


73,
Don W3FPR

On 8/21/2015 7:46 PM, pastor...@verizon.net wrote:

Well, it seems that the prolific cables do work with windows 10 and the K3. 
Evidently you can't connect the cable to the P3 and then to the K3. It must be 
connected directly to the K3. Once I did that the firmware loaded and 
everything is back to normal. Hopefully Howard at Elecraft will read this. 
Thanks to all the people that told me to connect the cable directly to the K3. 
Mark Griffin, KB3Z



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Re: [Elecraft] K3 Problem Solved!!!!

[Lyle Johnson]

You can also try turning the P3 OFF, then loading.  This will confirm 
the wiring/cables/etc.


73,

Lyle KK7P

...The connection with the serial adapter cable to the P3 *should* 
have worked.  That means you may have to do some additional 
investigation.


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Re: [Elecraft] K3 Problem Solved!!!!

[Vic Rosenthal]

Glad it works, but this is strange. I always do firmware updates with the P3 in 
line.

Vic 4X6GP/K2VCO 

> On Aug 22, 2015, at 2:46 AM, pastor...@verizon.net wrote:
> 
> Well, it seems that the prolific cables do work with windows 10 and the K3. 
> Evidently you can't connect the cable to the P3 and then to the K3. It must 
> be connected directly to the K3. Once I did that the firmware loaded and 
> everything is back to normal. Hopefully Howard at Elecraft will read this. 
> Thanks to all the people that told me to connect the cable directly to the 
> K3. Mark Griffin, KB3Z
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Re: [Elecraft] K3 Problem Solved!!!!

[Alan]

On 08/22/2015 02:49 AM, Vic Rosenthal wrote:

Glad it works, but this is strange. I always do firmware updates with the P3 in 
line.


The one time that doesn't work is if the K3 is in manual 
firmware-download mode, perhaps due to a failure of a previous download. 
 For that, the P3 should be bypassed.  The easiest way to ensure that 
is to unplug its power connector.


Alan N1AL

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Re: [Elecraft] K3 problem "ERR DLL"

[Nr4c]

ZDLL error sounds more like a Windows thing then a radio error. 

Sent from my iPhone
...nr4c. bill


> On Jan 4, 2020, at 2:04 PM, Ryszard Tymkiewicz  wrote:
> 
> I have been using K3 for MANY years and the first time I got a message 
> "ERROR DLL" ..there was a high noise level and I was not able to tune to 
> stations. It was in my second QTH..when I got back home seems everything is 
> OK. I don't know if it is a problem with contacts? If so which ones I should 
> clean?
>  73 Rys
> SP5EWY
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Re: [Elecraft] K3 problem "ERR DLL"

[Don Wilhelm]

Rys,

The first thing to try are the steps indicated in the K3 manual listing 
of errors.


If those do not help, and this is an older K3, try removing the front 
panel assembly (the KDVR3 manual page 7 has good instructions for doing 
that).  If the pins on the front panel connector are tin plated, they 
should be replaced with the gold pins (Elecraft has a kit).  In any 
case, removing the front panel assembly and simply replacing it will 
wipe oxidation from the pins and can restore proper operation.


73,
Don W3FPR

On 1/4/2020 2:02 PM, Ryszard Tymkiewicz wrote:
I have been using K3 for MANY years and the first time I got a message 
"ERROR DLL" ..there was a high noise level and I was not able to tune to 
stations. It was in my second QTH..when I got back home seems everything 
is OK. I don't know if it is a problem with contacts? If so which ones I 
should clean?

                                  73 Rys
     SP5EWY

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Re: [Elecraft] K3 problem "ERR DLL"

[Ryszard Tymkiewicz]

Bill..the message was on K3 screen and not any PC was connected...

   73 Rys

W dniu 2020-01-05 o 00:37, Nr4c pisze:

ZDLL error sounds more like a Windows thing then a radio error.

Sent from my iPhone
...nr4c. bill



On Jan 4, 2020, at 2:04 PM, Ryszard Tymkiewicz  wrote:

I have been using K3 for MANY years and the first time I got a message "ERROR 
DLL" ..there was a high noise level and I was not able to tune to stations. It was 
in my second QTH..when I got back home seems everything is OK. I don't know if it is a 
problem with contacts? If so which ones I should clean?
  73 Rys
 SP5EWY
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Re: [Elecraft] K3 problem "ERR DLL"

[ab2tc]

Hi,

Are you sure that message wasn't "ERR PLL"? Do you have the older synth? It
has a PLL (phase locked loop) in it so that error message might make sense.

AB2TC - Knut


Ryszard Tymkiewicz wrote
> Bill..the message was on K3 screen and not any PC was connected...
> 
>     73 Rys
> 
> W dniu 2020-01-05 o 00:37, Nr4c pisze:
>> ZDLL error sounds more like a Windows thing then a radio error.
>>
>> Sent from my iPhone
>> ...nr4c. bill
>>
> 
> __





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[Elecraft] [K3] PROBLEM WITH FIRMWARE 3.11

[N0SA]

I have just tried to load the latest firmware but I am having a problem.
I keep getting a message that says
K3 did not respond to revision query "RVM;"
Firmware load failed
My K3 display shows  FPF LOAD PENDING
I have retried it a few times and I still get the same message.
I have the latest version of K3 Utility and I have done many downloads
before with no problems.
What am I doing wrong
Thanks
Larry
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[Elecraft] K3: Problem with KPA3 #1999

[Michael van Hauten]

Hi Folks,
thank you for all your help. Gary adviced me to check all the toroids. L6 on 
KPA3 had a bad solder point. The enamel was not in contact wit the board. After 
soldering this,the rigg works with more than 100W.
73 de DC0ZO
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[Elecraft] [K3] problem mating FP & DSP

[Randy Moore]

I'm assembling K3 #4564, my third K3 build, and I can't get the front panel to 
mate with the DSP board. The problem seems to be at J32 and the pins won't 
fully penetrate the female connector. The standoffs near there miss toiching 
the underside of the DSP by about 1/16"  I've accidentally verified this by 
allowing the J32 pins to slip down beside the connector and everything fit 
fine. The connector at the other end of the board mates fine. It's as though 
something is wrong inside the female part of J32. 

The J32 connector is still mating most of the way, so I'm thinking about 
clipping off about 1/16" of the pins. Any other suggestions?

73,
Randy, KS4L
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Re: [Elecraft] K3 problem (vfoB knob problem)

[Geert Jan de Groot]

The A and B knob each have identical encoders that use plug-in boards to 
the front panel PCB. Chances are that the encoder isn't connected 
anymore (got loose).


Opening up the front panel should tell. Note that the A and B encoder 
are identical so you can swap them for testing.


Note that assembly of the front panel is quite fussy with distance 
rings, etc. You are well advised to keep notes of how the front panel 
was assembled when you take it apart. It also makes sense to have the 
assembler's manual at hand.


Recent adventures with swapping parts on an older K3 learned that the B 
encoder sits in a little deeper with the new VFO-B knob. As a result, in 
my case, the solder pins were touching (scratching) the front panel PCB. 
I fixed this by cutting the jumper pins flush and putting in some 
isolation, just to be sure.


I don't expect any broken parts, but some disassembly required. When you 
disassemble / re-assemble, be GENTLE with the volume knobs, they are 
known to split on older serial numbers.


Geert Jan
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Re: [Elecraft] [K3] PROBLEM WITH FIRMWARE 3.11

[Julius Fazekas n2wn]

Larry,

If you haven't, make sure you uninstalled the previous version of the K3
utility and then install the latest version. It may be a remnant from an
early version of the utility.

73,
Julius


N0SA wrote:
> 
> I have just tried to load the latest firmware but I am having a problem.
> I keep getting a message that says
> K3 did not respond to revision query "RVM;"
> Firmware load failed
> My K3 display shows  FPF LOAD PENDING
> I have retried it a few times and I still get the same message.
> I have the latest version of K3 Utility and I have done many downloads
> before with no problems.
> What am I doing wrong
> Thanks
> Larry
> 


-
Julius Fazekas
N2WN

Tennessee Contest Group
http://www.k4ro.net/tcg/index.html

Tennessee QSO Party
http://www.tnqp.org/

Elecraft K2/100 #4455
Elecraft K3/100 #366
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[Elecraft] K3 problem after latest sw update

[pa0kv]

Hi!

Yesterday I updated my K3's sw. After some shutdown and startups it came 
up as normal.


But there is no reception. I get noise from my antenna. Unplug the 
antenna, no noise.
Send a signal in the air on the tuned frequency ... nothing. No S-meter, 
no biep.


What went wrong? I did reinstall all updates. No result.

Twan - PA0KV



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[Elecraft] K3 Problem during transmission on SSB

[Luigi Casari]

Ragards to all,
I have just discovered a problem, 28 MHz or 21 MHz SSB, during transmission 
the power drop down to abt. 10/15W.

This after few second of transmission, the power staies low for some seconds 
and then increases again. No question of microphone, I have tried with MC85 
and Pro set, also change the levels of the mic gain and compressor without 
result.

I have tried on other frequencies and have not been able to recreate the 
problem, only in 21 and 28 MHz.
Don't believe is a problem of SWR and some protection what limits the power, 
the antenna is the same from the 10m to the 40m, Opti Beam, and the SWR 
where have done the tests are low. Also the internal SWR meter of the K3 
give me low SWR.
Even in 160m, 80m or 6m with others antennas no problem.

In FM mode I don't notice any decrease of power, 110W constant.

Some idea?

73, Luigi HB9CXZ

hb9...@ticino.com
http://web.ticino.com/hb9cxz/



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[Elecraft] [K3] Problem w/front panel switches

[Phil & Debbie Salas]

Well - Thought I'd put this out here since it'll be tomorrow before I can 
contact Elecraft Support.

This morning my K3 (SN308) started having problems with the front panel 
controls.  I can't change bands with the BAND button, pressing the MODE 
button changes antennas, pressing the M>V button plays my M1 CW message, 
etc.  I re-loaded all firmware, and I pulled the front panel loose and 
dabbed some DeOxit on the connector (I've heard of problems with the tin 
plated pins which I have).  Anyway, no joy.  Anyone see anything familiar, 
and know of a solution?

BTW - I can switch bands using the buttons on my KPA500, and it transmits 
fine.  Just front panel button problems.

Thanks,
Phil - AD5X 

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[Elecraft] [K3] problem with Transmitter Gain Calibration

[kj4raq]

Problem: 

  



The transmitter gain will not calibrate. Receive an error code: 

  



Starting 5 watt calibration 

Calibrating at 1.900 MHz 

Calibration power settled at " 0.0 W ;" 

Elapsed time: 6 seconds 

Tx Gain calibration failed because transmit power did not reach the expected 
value 

5 watt calibration failed 



Radio is a new build. Checking out at low power. Installed the 100 watt power 
amplifier, then removed the amplifier to test at low power per book 
instructions. I have reinstalled the PA jumper block for all test runs. 



The radio will not receive Hz filter and it is properly configured. 



Is there anything else I need to do to get back to low power configuration? 


Warren, KJ4RAQ
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[Elecraft] [K3] problem with Transmitter Gain Calibration

[kj4raq]

Problem: 

  

The transmitter gain will not calibrate.  Receive an error code: 

  

Starting 5 watt calibration 

Calibrating at 1.900 MHz 

Calibration power settled at " 0.0 W ;" 

Elapsed time: 6 seconds 

Tx Gain calibration failed because transmit power did not reach the expected 
value 

5 watt calibration failed 

    

Radio is a new build.  Checking out at low power.  Installed the 100 watt power 
amplifier, then removed the amplifier to test at low power per book 
instructions.  I have reinstalled the PA jumper block for all test runs.  

  

The radio will not receive Hz filter and it is properly configured. 

  

Is there anything else I need to do to get back to low power configuration?   


Warren, KJ4RAQ
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[Elecraft] K3 Problem in Assembly, need advice

[Brian F. Wruble]

I am assembling K3 s/n 7394.  I have come to the step on page 45, DMM
resistance measurements.  The resistance between a terminal on U12 and
ground measures 445 ohms.  It is supposed to be >500 ohms.  I am using an
accurate Fluke DMM.

What am I looking for?

73 de Brian W3BW


*Brian F. Wruble, C.F.A.

*70 is the new 40.*
*
Mail: 1107 Key Plaza, PMB 447 Key West, FL 33040-4077
Summers: P.O.Box 57, 7400 Augustine Herman Highway, Georgetown, MD 21930
eFax  305.768.0278
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Re: [Elecraft] K3 problem after latest sw update

[Nr4c]

Restore the CONFIG copy you made before you updated FW. You did do a CONFIG 
backup didn’t you?

Sent from my iPhone
...nr4c. bill


> On Sep 26, 2018, at 3:30 PM, pa...@pa0kv.nl wrote:
> 
> Hi!
> 
> Yesterday I updated my K3's sw. After some shutdown and startups it came up 
> as normal.
> 
> But there is no reception. I get noise from my antenna. Unplug the antenna, 
> no noise.
> Send a signal in the air on the tuned frequency ... nothing. No S-meter, no 
> biep.
> 
> What went wrong? I did reinstall all updates. No result.
> 
> Twan - PA0KV
> 
> 
> 
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Re: [Elecraft] K3 problem after latest sw update

[pa0kv]

I tuned into my inv-V with 8 Watt on 3.63 Mhz and
connected a 1 meter wire as antenna on my HP frequency counter.
The counter displayed 3.2177 Mhz ! An offset of approximately .412 Mhz

Still no idea. Waiting on k3support@elecraft...

Twan - pa0kv

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Re: [Elecraft] K3 problem after latest sw update

[pa0kv]

Problem solved!
FTP does not work here anymore due to unknown reasons.
As a result, a much older version of firmware has been installed.
For some unclear reason I kept the old firmware files. But now I moved them
to another folder. I received the latest firmware via email.
After installation, everything works as it should.

Thanks Elecraft/Wayne!

73s, Twan - PA0KVhttp://www.pa0kv.nl


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