Elecraft

K3: K3S shuts down

Classic

List

Threaded

7 messages Options

Nr4c

K3: K3S shuts down

A friend has a K3S (sn 1006x) and it has started to just shut down on its own.

Any ideas?

Sent from my iPhone
...nr4c. bill

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

A. Vidovic

Re: K3: K3S shuts down

Overheating ? Try to check the gap between the main unit and the heatsink.

On 12/3/20 08:40, Nr4c wrote:
> A friend has a K3S (sn 1006x) and it has started to just shut down on its own.
>
> Any ideas?
>
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

Bob McGraw - K4TAX

Re: K3: K3S shuts down

In reply to this post by Nr4c

Power supply over or under voltage?

Bob, K4TAX

Sent from my iPhone

> On Mar 11, 2020, at 6:54 PM, Nr4c <[hidden email]> wrote:
>
> A friend has a K3S (sn 1006x) and it has started to just shut down on its own.
>
> Any ideas?
>
> Sent from my iPhone
> ...nr4c. bill
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

Rick Robinson

Re: K3: K3S shuts down

Clean the fuses and holders.

On Wed, Mar 11, 2020 at 8:02 PM Bob McGraw K4TAX <[hidden email]>
wrote:

> Power supply over or under voltage?
>
> Bob, K4TAX
>
>
> Sent from my iPhone
>
> > On Mar 11, 2020, at 6:54 PM, Nr4c <[hidden email]> wrote:
> >
> > A friend has a K3S (sn 1006x) and it has started to just shut down on
> its own.
> >
> > Any ideas?
> >
> > Sent from my iPhone
> > ...nr4c. bill
> >
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:[hidden email]
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to [hidden email]
> >
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

--
Rick Genesis 1-29
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

Nr4c

Re: K3: K3S shuts down

In reply to this post by Nr4c

Thanks to all who answered my quest about this “shut down” issue.
All answers seem to concentrate on power supply/connection issues.

Now I have a area to troubleshoot in depth.

Thanks for the help.

Sent from my iPhone
...nr4c. bill

> On Mar 11, 2020, at 7:42 PM, Nr4c <[hidden email]> wrote:
>
> A friend has a K3S (sn 1006x) and it has started to just shut down on its own.
>
> Any ideas?
>
> Sent from my iPhone
> ...nr4c. bill
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

k6mkf

Re: K3: K3S shuts down

Let us know how you get on with a solution Bill. Good luck with it!

- 73 and good DX de Mike, K6MKF, NCDXC Secretary

> -----Original Message-----
> From: [hidden email] <[hidden email]>
> On Behalf Of Nr4c
> Sent: Thursday, March 12, 2020 03:23
> To: elecraft <[hidden email]>
> Subject: Re: [Elecraft] K3: K3S shuts down
>
> Thanks to all who answered my quest about this “shut down” issue.
> All answers seem to concentrate on power supply/connection issues.
>
> Now I have a area to troubleshoot in depth.
>
> Thanks for the help.
>
> Sent from my iPhone
> ...nr4c. bill
>
>
> > On Mar 11, 2020, at 7:42 PM, Nr4c <[hidden email]> wrote:
> >
> > A friend has a K3S (sn 1006x) and it has started to just shut down on its own.
> >
> > Any ideas?
> >
> > Sent from my iPhone
> > ...nr4c. bill
> >
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:[hidden email]
> >
> > This list hosted by: http://www.qsl.net Please help support this email
> > list: http://www.qsl.net/donate.html Message delivered to
> > [hidden email]
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html Message
> delivered to [hidden email]

Bob McGraw - K4TAX

Re: K3: K3S shuts down

In reply to this post by Nr4c

For that reason and others, I have my power supply with both current and
voltage indications and located where I can see it when I turn it on and
during operation.

Connection issues are a big contributor to poor voltage regulation.
Also, using a power distribution strip is a bad idea for connecting the
radio to the power supply. {I don't care what the rating of the strip
may be.} The radio power leads should always be connected direct to
the power supply using properly attached terminals on both ends of the
power cable.

More connections = more resistance = poor voltage regulation E = I x R

73

Bob, K4TAX

On 3/12/2020 5:23 AM, Nr4c wrote:

> Thanks to all who answered my quest about this “shut down” issue.
> All answers seem to concentrate on power supply/connection issues.
>
> Now I have a area to troubleshoot in depth.
>
> Thanks for the help.
>
> Sent from my iPhone
> ...nr4c. bill
>
>
>> On Mar 11, 2020, at 7:42 PM, Nr4c <[hidden email]> wrote:
>>
>> A friend has a K3S (sn 1006x) and it has started to just shut down on its own.
>>
>> Any ideas?
>>
>> Sent from my iPhone
>> ...nr4c. bill
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]