Re: [Elecraft] Sudden K3 failure

[Bob McGraw K4TAX]

Just shows HOW IMPORTANT keeping a current back-up file becomes.   Glad 
that resolved the issue.


73

Bob, K4TAX


On 7/27/2019 8:23 AM, Mpridesti via Elecraft wrote:

Although I was unable to exactly determine the source of failure, by using the 
Restore K3 Configuration button and use a previously saved file, brought the 
receiver back to life- thankfully!  Tweaking those tmp connectors helped as 
well.

Wish I was able to get a better picture on what happened- like so many things 
in life, sometimes you reboot and move on .

Thanks for all the helpful suggestions here!

Regards,

Mark, K1RX



On Jul 27, 2019, at 12:27 AM, Mark Musick  wrote:

Mark,
Check to make sure the NR and NB are off.
Also, open the K3 utility and check the roofing filter settings.
Does the lack of receiver noise occur regardless of which roofing filter is 
engaged?
The narrower filters require additional gain and is set in the K3 utility. 
Using a narrower roofing filter without adding gain can produce the symptom you 
describe.
Does your K3 have the old SYNS or the new SYNS?
Let us know what you find.

73,
Mark, WB9CIF

-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of Mpridesti via Elecraft
Sent: Saturday, July 27, 2019 02:58
To: Jack Brindle 
Cc: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] Sudden K3 failure

Jack

Did check that - nope not the problem

Thanks

Regards,

Mark, K1RX



On Jul 26, 2019, at 10:54 PM, Jack Brindle  wrote:

Perhaps the RxAnt is selected? Easy to do, easy to miss. Done it more times 
than I care to remember.

73!
Jack, W6FB



On Jul 26, 2019, at 7:42 PM, Mpridesti via Elecraft  
wrote:

Sorry- did not fully see the problem

The receiver is not working on any band not just 40. Sounds like band noise on 
all bands (sounds the same on every band).  Did a comparison with a second K3 
to confirm the no receiver problem on all bands.

Previously found by rotating some of the tmp connectors on the SYN boards, got 
the TX problem to go away. So this “no receive” seems unrelated.

Regards,

Mark, K1RX



On Jul 26, 2019, at 9:57 PM, Barry Simpson  wrote:

What about RX antenna ?

Barry  VK2BJ


On Sat, 27 Jul 2019 at 09:54, Mpridesti via Elecraft  
wrote:
Confirmed that at an early stage of the trouble shooting.  No difference with 
either antenna selected (only one port has an antenna).

Regards,

Mark, K1RX



On Jul 26, 2019, at 7:28 PM, Dennis Moore  wrote:

Any chance you accidentally switched antennas on 40m?

Dennis NJ6G


On 7/26/2019 13:21, Mpridesti via Elecraft wrote:
Although I was able get the TX running again by merely doing a small twist to 
all the TMP connectors that were reachable with top cover removed and behind 
the front panel, unable to bring back the receiver front end on 40 m. I hear 
noise and very weak signals but nothing like the normal band noise and a hot 
receiver previously.

Now wondering if another part of the radio (tmp connectors) needs a small twist 
to break up oxidation. Not clear as to why just one band is affected. Any 
thoughts from this great resource?

Regards,

Mark, K1RX

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Re: [Elecraft] Sudden K3 failure

[Mpridesti via Elecraft]

Although I was unable to exactly determine the source of failure, by using the 
Restore K3 Configuration button and use a previously saved file, brought the 
receiver back to life- thankfully!  Tweaking those tmp connectors helped as 
well. 

Wish I was able to get a better picture on what happened- like so many things 
in life, sometimes you reboot and move on .

Thanks for all the helpful suggestions here!

Regards,

Mark, K1RX


> On Jul 27, 2019, at 12:27 AM, Mark Musick  wrote:
> 
> Mark,
> Check to make sure the NR and NB are off. 
> Also, open the K3 utility and check the roofing filter settings.
> Does the lack of receiver noise occur regardless of which roofing filter is 
> engaged?
> The narrower filters require additional gain and is set in the K3 utility. 
> Using a narrower roofing filter without adding gain can produce the symptom 
> you describe.
> Does your K3 have the old SYNS or the new SYNS?
> Let us know what you find. 
> 
> 73,
> Mark, WB9CIF
> 
> -Original Message-
> From: elecraft-boun...@mailman.qth.net  On 
> Behalf Of Mpridesti via Elecraft
> Sent: Saturday, July 27, 2019 02:58
> To: Jack Brindle 
> Cc: Elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Sudden K3 failure
> 
> Jack
> 
> Did check that - nope not the problem 
> 
> Thanks
> 
> Regards,
> 
> Mark, K1RX
> 
> 
>> On Jul 26, 2019, at 10:54 PM, Jack Brindle  wrote:
>> 
>> Perhaps the RxAnt is selected? Easy to do, easy to miss. Done it more times 
>> than I care to remember.
>> 
>> 73!
>> Jack, W6FB
>> 
>> 
>>> On Jul 26, 2019, at 7:42 PM, Mpridesti via Elecraft 
>>>  wrote:
>>> 
>>> Sorry- did not fully see the problem
>>> 
>>> The receiver is not working on any band not just 40. Sounds like band noise 
>>> on all bands (sounds the same on every band).  Did a comparison with a 
>>> second K3 to confirm the no receiver problem on all bands. 
>>> 
>>> Previously found by rotating some of the tmp connectors on the SYN boards, 
>>> got the TX problem to go away. So this “no receive” seems unrelated. 
>>> 
>>> Regards,
>>> 
>>> Mark, K1RX
>>> 
>>> 
>>>> On Jul 26, 2019, at 9:57 PM, Barry Simpson  wrote:
>>>> 
>>>> What about RX antenna ?
>>>> 
>>>> Barry  VK2BJ
>>>> 
>>>>> On Sat, 27 Jul 2019 at 09:54, Mpridesti via Elecraft 
>>>>>  wrote:
>>>>> Confirmed that at an early stage of the trouble shooting.  No difference 
>>>>> with either antenna selected (only one port has an antenna). 
>>>>> 
>>>>> Regards,
>>>>> 
>>>>> Mark, K1RX
>>>>> 
>>>>> 
>>>>>> On Jul 26, 2019, at 7:28 PM, Dennis Moore  wrote:
>>>>>> 
>>>>>> Any chance you accidentally switched antennas on 40m?
>>>>>> 
>>>>>> Dennis NJ6G
>>>>>> 
>>>>>>> On 7/26/2019 13:21, Mpridesti via Elecraft wrote:
>>>>>>> Although I was able get the TX running again by merely doing a small 
>>>>>>> twist to all the TMP connectors that were reachable with top cover 
>>>>>>> removed and behind the front panel, unable to bring back the receiver 
>>>>>>> front end on 40 m. I hear noise and very weak signals but nothing like 
>>>>>>> the normal band noise and a hot receiver previously.
>>>>>>> 
>>>>>>> Now wondering if another part of the radio (tmp connectors) needs a 
>>>>>>> small twist to break up oxidation. Not clear as to why just one band is 
>>>>>>> affected. Any thoughts from this great resource?
>>>>>>> 
>>>>>>> Regards,
>>>>>>> 
>>>>>>> Mark, K1RX
>>>>>> __
>>>>>> 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 
>>>>>> mpride...@yahoo.com
>>>>> 
>>>>> __
&

Re: [Elecraft] Sudden K3 failure

[Mpridesti via Elecraft]

Jack

Did check that - nope not the problem 

Thanks

Regards,

Mark, K1RX


> On Jul 26, 2019, at 10:54 PM, Jack Brindle  wrote:
> 
> Perhaps the RxAnt is selected? Easy to do, easy to miss. Done it more times 
> than I care to remember.
> 
> 73!
> Jack, W6FB
> 
> 
>> On Jul 26, 2019, at 7:42 PM, Mpridesti via Elecraft 
>>  wrote:
>> 
>> Sorry- did not fully see the problem 
>> 
>> The receiver is not working on any band not just 40. Sounds like band noise 
>> on all bands (sounds the same on every band).  Did a comparison with a 
>> second K3 to confirm the no receiver problem on all bands. 
>> 
>> Previously found by rotating some of the tmp connectors on the SYN boards, 
>> got the TX problem to go away. So this “no receive” seems unrelated. 
>> 
>> Regards,
>> 
>> Mark, K1RX
>> 
>> 
>>> On Jul 26, 2019, at 9:57 PM, Barry Simpson  wrote:
>>> 
>>> What about RX antenna ?
>>> 
>>> Barry  VK2BJ
>>> 
 On Sat, 27 Jul 2019 at 09:54, Mpridesti via Elecraft 
  wrote:
 Confirmed that at an early stage of the trouble shooting.  No difference 
 with either antenna selected (only one port has an antenna). 
 
 Regards,
 
 Mark, K1RX
 
 
> On Jul 26, 2019, at 7:28 PM, Dennis Moore  wrote:
> 
> Any chance you accidentally switched antennas on 40m?
> 
> Dennis NJ6G
> 
>> On 7/26/2019 13:21, Mpridesti via Elecraft wrote:
>> Although I was able get the TX running again by merely doing a small 
>> twist to all the TMP connectors that were reachable with top cover 
>> removed and behind the front panel, unable to bring back the receiver 
>> front end on 40 m. I hear noise and very weak signals but nothing like 
>> the normal band noise and a hot receiver previously.
>> 
>> Now wondering if another part of the radio (tmp connectors) needs a 
>> small twist to break up oxidation. Not clear as to why just one band is 
>> affected. Any thoughts from this great resource?
>> 
>> Regards,
>> 
>> Mark, K1RX
> __
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Re: [Elecraft] Sudden K3 failure

[Jack Brindle via Elecraft]

Perhaps the RxAnt is selected? Easy to do, easy to miss. Done it more times 
than I care to remember.

73!
Jack, W6FB


> On Jul 26, 2019, at 7:42 PM, Mpridesti via Elecraft 
>  wrote:
> 
> Sorry- did not fully see the problem 
> 
> The receiver is not working on any band not just 40. Sounds like band noise 
> on all bands (sounds the same on every band).  Did a comparison with a second 
> K3 to confirm the no receiver problem on all bands. 
> 
> Previously found by rotating some of the tmp connectors on the SYN boards, 
> got the TX problem to go away. So this “no receive” seems unrelated. 
> 
> Regards,
> 
> Mark, K1RX
> 
> 
>> On Jul 26, 2019, at 9:57 PM, Barry Simpson  wrote:
>> 
>> What about RX antenna ?
>> 
>> Barry  VK2BJ
>> 
>>> On Sat, 27 Jul 2019 at 09:54, Mpridesti via Elecraft 
>>>  wrote:
>>> Confirmed that at an early stage of the trouble shooting.  No difference 
>>> with either antenna selected (only one port has an antenna). 
>>> 
>>> Regards,
>>> 
>>> Mark, K1RX
>>> 
>>> 
 On Jul 26, 2019, at 7:28 PM, Dennis Moore  wrote:
 
 Any chance you accidentally switched antennas on 40m?
 
 Dennis NJ6G
 
> On 7/26/2019 13:21, Mpridesti via Elecraft wrote:
> Although I was able get the TX running again by merely doing a small 
> twist to all the TMP connectors that were reachable with top cover 
> removed and behind the front panel, unable to bring back the receiver 
> front end on 40 m. I hear noise and very weak signals but nothing like 
> the normal band noise and a hot receiver previously.
> 
> Now wondering if another part of the radio (tmp connectors) needs a small 
> twist to break up oxidation. Not clear as to why just one band is 
> affected. Any thoughts from this great resource?
> 
> Regards,
> 
> Mark, K1RX
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>>> 
>>> __
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Re: [Elecraft] Sudden K3 failure

[Mpridesti via Elecraft]

Sorry- did not fully see the problem 

The receiver is not working on any band not just 40. Sounds like band noise on 
all bands (sounds the same on every band).  Did a comparison with a second K3 
to confirm the no receiver problem on all bands. 

Previously found by rotating some of the tmp connectors on the SYN boards, got 
the TX problem to go away. So this “no receive” seems unrelated. 

Regards,

Mark, K1RX


> On Jul 26, 2019, at 9:57 PM, Barry Simpson  wrote:
> 
> What about RX antenna ?
> 
> Barry  VK2BJ
> 
>> On Sat, 27 Jul 2019 at 09:54, Mpridesti via Elecraft 
>>  wrote:
>> Confirmed that at an early stage of the trouble shooting.  No difference 
>> with either antenna selected (only one port has an antenna). 
>> 
>> Regards,
>> 
>> Mark, K1RX
>> 
>> 
>> > On Jul 26, 2019, at 7:28 PM, Dennis Moore  wrote:
>> > 
>> > Any chance you accidentally switched antennas on 40m?
>> > 
>> > Dennis NJ6G
>> > 
>> >> On 7/26/2019 13:21, Mpridesti via Elecraft wrote:
>> >> Although I was able get the TX running again by merely doing a small 
>> >> twist to all the TMP connectors that were reachable with top cover 
>> >> removed and behind the front panel, unable to bring back the receiver 
>> >> front end on 40 m. I hear noise and very weak signals but nothing like 
>> >> the normal band noise and a hot receiver previously.
>> >> 
>> >> Now wondering if another part of the radio (tmp connectors) needs a small 
>> >> twist to break up oxidation. Not clear as to why just one band is 
>> >> affected. Any thoughts from this great resource?
>> >> 
>> >> Regards,
>> >> 
>> >> Mark, K1RX
>> > __
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>> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>> > Message delivered to mpride...@yahoo.com 
>> 
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Re: [Elecraft] Sudden K3 failure

[Mpridesti via Elecraft]

Confirmed that at an early stage of the trouble shooting.  No difference with 
either antenna selected (only one port has an antenna). 

Regards,

Mark, K1RX


> On Jul 26, 2019, at 7:28 PM, Dennis Moore  wrote:
> 
> Any chance you accidentally switched antennas on 40m?
> 
> Dennis NJ6G
> 
>> On 7/26/2019 13:21, Mpridesti via Elecraft wrote:
>> Although I was able get the TX running again by merely doing a small twist 
>> to all the TMP connectors that were reachable with top cover removed and 
>> behind the front panel, unable to bring back the receiver front end on 40 m. 
>> I hear noise and very weak signals but nothing like the normal band noise 
>> and a hot receiver previously.
>> 
>> Now wondering if another part of the radio (tmp connectors) needs a small 
>> twist to break up oxidation. Not clear as to why just one band is affected. 
>> Any thoughts from this great resource?
>> 
>> Regards,
>> 
>> Mark, K1RX
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Re: [Elecraft] Sudden K3 failure

[Dennis Moore]

Any chance you accidentally switched antennas on 40m?

Dennis NJ6G

On 7/26/2019 13:21, Mpridesti via Elecraft wrote:

Although I was able get the TX running again by merely doing a small twist to 
all the TMP connectors that were reachable with top cover removed and behind 
the front panel, unable to bring back the receiver front end on 40 m. I hear 
noise and very weak signals but nothing like the normal band noise and a hot 
receiver previously.

Now wondering if another part of the radio (tmp connectors) needs a small twist 
to break up oxidation. Not clear as to why just one band is affected. Any 
thoughts from this great resource?

Regards,

Mark, K1RX

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Re: [Elecraft] Sudden K3 failure

[Mpridesti via Elecraft]

Although I was able get the TX running again by merely doing a small twist to 
all the TMP connectors that were reachable with top cover removed and behind 
the front panel, unable to bring back the receiver front end on 40 m. I hear 
noise and very weak signals but nothing like the normal band noise and a hot 
receiver previously. 

Now wondering if another part of the radio (tmp connectors) needs a small twist 
to break up oxidation. Not clear as to why just one band is affected. Any 
thoughts from this great resource?

Regards,

Mark, K1RX


> On Jul 25, 2019, at 10:30 AM, Mpridesti via Elecraft 
>  wrote:
> 
> Interesting 
> 
> Powered up radio again and worked fine again.  Within minutes failed again so 
> I am suspecting the tmp connectors as suggested by K1XX (and others) and the 
> SYM area. 
> 
> Regards,
> 
> Mark, K1RX
> 
> 
>> On Jul 25, 2019, at 9:40 AM, Mpridesti via Elecraft 
>>  wrote:
>> 
>> Appreciate all the suggestions 
>> 
>> Will address later today and will advise 
>> 
>> Regards,
>> 
>> Mark, K1RX
>> 
>> 
>>> On Jul 25, 2019, at 8:24 AM, Mpridesti via Elecraft 
>>>  wrote:
>>> 
>>> Yesterday while just listening to a SSB QSO, the receiver just went quiet 
>>> and when I tried to transmit, got nothing. 
>>> 
>>> Power setting was at 75 watts and varied properly but meter and external 
>>> output monitor was showing nothing. 
>>> 
>>> Thought the filters stopped passing RF. 
>>> 
>>> Rechecked the filter settings on the Utility program and all seemed normal 
>>> (no change).  
>>> 
>>> What could cause the radio to behave like this? During receive?
>>> 
>>> Regards,
>>> 
>>> Mark, K1RX
>>> 
>>> 
>>> __
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>> 
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Re: [Elecraft] Sudden K3 failure

[donovanf]

Hi Mark, 


You problem sounds exactly like this report: 


http://elecraft.365791.n2.nabble.com/K3-No-Receive-No-Transmit-SOLVED-td7609301.html
 


73 
Frank 
W3LPL 

- Original Message -

From: "Mpridesti via Elecraft"  
To: Elecraft@mailman.qth.net 
Sent: Thursday, July 25, 2019 12:24:17 PM 
Subject: [Elecraft] Sudden K3 failure 

Yesterday while just listening to a SSB QSO, the receiver just went quiet and 
when I tried to transmit, got nothing. 

Power setting was at 75 watts and varied properly but meter and external output 
monitor was showing nothing. 

Thought the filters stopped passing RF. 

Rechecked the filter settings on the Utility program and all seemed normal (no 
change). 

What could cause the radio to behave like this? During receive? 

Regards, 

Mark, K1RX 


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Re: [Elecraft] Sudden K3 failure

[Nr4c]

I would get some Deoxit and remove the KPA3 from the main board.  Apply minimal 
amount of Deixit to the connector pins and insert/remove the Amp about 10 or 15 
times. Wipe pins with lint free tissue and re-apply Deoxit (use toothpick) and 
insert the amp firmly and reassembled the radio.  

Let us know what/when you solve this. 

Sent from my iPhone
...nr4c. bill


> On Jul 25, 2019, at 10:42 AM, Don Wilhelm  wrote:
> 
> Mark,
> 
> While you may be correct about the TMP connectors, open the K3 and rotate the 
> TMP connectors a bit to wipe away any oxidation.
> 
> If it continues to fail after that, email supp...@elecraft.com for further 
> ideas on how to proceed.  Tell them what you have attempted so far.
> 
> 73,
> Don W3FPR
> 
>> On 7/25/2019 10:30 AM, Mpridesti via Elecraft wrote:
>> Interesting
>> Powered up radio again and worked fine again.  Within minutes failed again 
>> so I am suspecting the tmp connectors as suggested by K1XX (and others) and 
>> the SYM area.
>> Regards,
>> Mark, K1RX
>>> On Jul 25, 2019, at 9:40 AM, Mpridesti via Elecraft 
>>>  wrote:
>>> 
>>> Appreciate all the suggestions
>>> 
>>> Will address later today and will advise
>>> 
>>> Regards,
>>> 
>>> Mark, K1RX
>>> 
>>> 
 On Jul 25, 2019, at 8:24 AM, Mpridesti via Elecraft 
  wrote:
 
 Yesterday while just listening to a SSB QSO, the receiver just went quiet 
 and when I tried to transmit, got nothing.
 
 Power setting was at 75 watts and varied properly but meter and external 
 output monitor was showing nothing.
 
 Thought the filters stopped passing RF.
 

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Re: [Elecraft] Sudden K3 failure

[Don Wilhelm]

Mark,

While you may be correct about the TMP connectors, open the K3 and 
rotate the TMP connectors a bit to wipe away any oxidation.


If it continues to fail after that, email supp...@elecraft.com for 
further ideas on how to proceed.  Tell them what you have attempted so far.


73,
Don W3FPR

On 7/25/2019 10:30 AM, Mpridesti via Elecraft wrote:

Interesting

Powered up radio again and worked fine again.  Within minutes failed again so I 
am suspecting the tmp connectors as suggested by K1XX (and others) and the SYM 
area.

Regards,

Mark, K1RX



On Jul 25, 2019, at 9:40 AM, Mpridesti via Elecraft  
wrote:

Appreciate all the suggestions

Will address later today and will advise

Regards,

Mark, K1RX



On Jul 25, 2019, at 8:24 AM, Mpridesti via Elecraft  
wrote:

Yesterday while just listening to a SSB QSO, the receiver just went quiet and 
when I tried to transmit, got nothing.

Power setting was at 75 watts and varied properly but meter and external output 
monitor was showing nothing.

Thought the filters stopped passing RF.

Rechecked the filter settings on the Utility program and all seemed normal (no 
change).

What could cause the radio to behave like this? During receive?

Regards,

Mark, K1RX


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Re: [Elecraft] Sudden K3 failure

[Mpridesti via Elecraft]

Interesting 

Powered up radio again and worked fine again.  Within minutes failed again so I 
am suspecting the tmp connectors as suggested by K1XX (and others) and the SYM 
area. 

Regards,

Mark, K1RX


> On Jul 25, 2019, at 9:40 AM, Mpridesti via Elecraft 
>  wrote:
> 
> Appreciate all the suggestions 
> 
> Will address later today and will advise 
> 
> Regards,
> 
> Mark, K1RX
> 
> 
>> On Jul 25, 2019, at 8:24 AM, Mpridesti via Elecraft 
>>  wrote:
>> 
>> Yesterday while just listening to a SSB QSO, the receiver just went quiet 
>> and when I tried to transmit, got nothing. 
>> 
>> Power setting was at 75 watts and varied properly but meter and external 
>> output monitor was showing nothing. 
>> 
>> Thought the filters stopped passing RF. 
>> 
>> Rechecked the filter settings on the Utility program and all seemed normal 
>> (no change).  
>> 
>> What could cause the radio to behave like this? During receive?
>> 
>> Regards,
>> 
>> Mark, K1RX
>> 
>> 
>> __
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> 
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Re: [Elecraft] Sudden K3 failure

[Mpridesti via Elecraft]

Appreciate all the suggestions 

Will address later today and will advise 

Regards,

Mark, K1RX


> On Jul 25, 2019, at 8:24 AM, Mpridesti via Elecraft 
>  wrote:
> 
> Yesterday while just listening to a SSB QSO, the receiver just went quiet and 
> when I tried to transmit, got nothing. 
> 
> Power setting was at 75 watts and varied properly but meter and external 
> output monitor was showing nothing. 
> 
> Thought the filters stopped passing RF. 
> 
> Rechecked the filter settings on the Utility program and all seemed normal 
> (no change).  
> 
> What could cause the radio to behave like this? During receive?
> 
> Regards,
> 
> Mark, K1RX
> 
> 
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Re: [Elecraft] Sudden K3 failure

[Kidder, George]

Always try reloading your backup configuration.  Usually works for me.

George, W3HBM

On 7/25/2019 8:24 AM, Mpridesti via Elecraft wrote:
> [This message came from an external source. If suspicious, report to 
> ab...@ilstu.edu]
>
> Yesterday while just listening to a SSB QSO, the receiver just went quiet and 
> when I tried to transmit, got nothing.
>
> Power setting was at 75 watts and varied properly but meter and external 
> output monitor was showing nothing.
>
> Thought the filters stopped passing RF.
>
> Rechecked the filter settings on the Utility program and all seemed normal 
> (no change).
>
> What could cause the radio to behave like this? During receive?
>
> Regards,
>
> Mark, K1RX
>
>
> __
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[Elecraft] Sudden K3 failure

[Mpridesti via Elecraft]

Yesterday while just listening to a SSB QSO, the receiver just went quiet and 
when I tried to transmit, got nothing. 

Power setting was at 75 watts and varied properly but meter and external output 
monitor was showing nothing. 

Thought the filters stopped passing RF. 

Rechecked the filter settings on the Utility program and all seemed normal (no 
change).  

What could cause the radio to behave like this? During receive?

Regards,

Mark, K1RX


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