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K3 KPA3 Failure

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rfenabled

K3 KPA3 Failure

Has anyone had a KPA3 cause the display to show ERR 12 v?

Power supply checks out normal as do the leads. The circuit breaker is in line and does not drop out.

Connections appear ok as does the antenna system which is resonant etc.

When the error is displayed the K3 reverts to low power 12w out max.

Resetting does not correct the fault, tried placing the KPA3 to bypass and all works fine. Changed the setting to PA nor and the fault returns immediately.

Support have been notified by e-mail bit thought I would ask the group if anyone else has had this happen and if so, was it a KPA3 failure requiring replacement. Of course the warranty has expired...(:-((

73's
Gary
K3 #679
Sent via BlackBerry® from Telstra
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Matt Zilmer

Re: K3 KPA3 Failure

Did you try measuring the voltage at the 12V input of the KPA3?

matt W6NIA

On Mon, 11 Jan 2010 13:50:04 +0000, you wrote:

>Has anyone had a KPA3 cause the display to show ERR 12 v?
>
>Power supply checks out normal as do the leads. The circuit breaker is in line and does not drop out.
>
>Connections appear ok as does the antenna system which is resonant etc.
>
>When the error is displayed the K3 reverts to low power 12w out max.
>
>Resetting does not correct the fault, tried placing the KPA3 to bypass and all works fine. Changed the setting to PA nor and the fault returns immediately.
>
>Support have been notified by e-mail bit thought I would ask the group if anyone else has had this happen and if so, was it a KPA3 failure requiring replacement. Of course the warranty has expired...(:-((
>
>73's
>Gary
>K3 #679
>Sent via BlackBerry® from Telstra
>______________________________________________________________
>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

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Bill VanAlstyne W5WVO

Re: K3 KPA3 Failure

In reply to this post by rfenabled

Yes, I have had this failure mode and at least one other guy as well, who
posted about on this list. After talking with tech support, Elecraft sent me
a new KPAIO3 board to try. Just havng returned from holiday vacation, I have
yet to swap it in, which I really need to get around to. Will let you know
as soon as I try it. I suspect it will fix the problem. Just a hunch. :-)

There may have been a few or a bunch of these boards that had a bad (i.e.,
early mortality) device. Beginning to sound like it, maybe.

Bill W5WVO

--------------------------------------------------
From: <[hidden email]>
Sent: Monday, January 11, 2010 6:50 AM
To: "Elecraft" <[hidden email]>
Subject: [Elecraft] K3 KPA3 Failure

> Has anyone had a KPA3 cause the display to show ERR 12 v?
>
> Power supply checks out normal as do the leads. The circuit breaker is in
> line and does not drop out.
>
> Connections appear ok as does the antenna system which is resonant etc.
>
> When the error is displayed the K3 reverts to low power 12w out max.
>
> Resetting does not correct the fault, tried placing the KPA3 to bypass and
> all works fine. Changed the setting to PA nor and the fault returns
> immediately.
>
> Support have been notified by e-mail bit thought I would ask the group if
> anyone else has had this happen and if so, was it a KPA3 failure requiring
> replacement. Of course the warranty has expired...(:-((
>
> 73's
> Gary
> K3 #679
> Sent via BlackBerry® from Telstra
> ______________________________________________________________
> 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
>

Bill VanAlstyne W5WVO

Re: K3 KPA3 Failure

PS -- My K3 is #888, so it's right in the same time frame as your #679.

Bill W5WVO

--------------------------------------------------
From: "Bill VanAlstyne W5WVO" <[hidden email]>
Sent: Monday, January 11, 2010 7:36 PM
To: <[hidden email]>; "Elecraft" <[hidden email]>
Subject: Re: [Elecraft] K3 KPA3 Failure

> Yes, I have had this failure mode and at least one other guy as well, who
> posted about on this list. After talking with tech support, Elecraft sent
> me
> a new KPAIO3 board to try. Just havng returned from holiday vacation, I
> have
> yet to swap it in, which I really need to get around to. Will let you know
> as soon as I try it. I suspect it will fix the problem. Just a hunch. :-)
>
> There may have been a few or a bunch of these boards that had a bad (i.e.,
> early mortality) device. Beginning to sound like it, maybe.
>
> Bill W5WVO
>
> --------------------------------------------------
> From: <[hidden email]>
> Sent: Monday, January 11, 2010 6:50 AM
> To: "Elecraft" <[hidden email]>
> Subject: [Elecraft] K3 KPA3 Failure
>
>> Has anyone had a KPA3 cause the display to show ERR 12 v?
>>
>> Power supply checks out normal as do the leads. The circuit breaker is in
>> line and does not drop out.
>>
>> Connections appear ok as does the antenna system which is resonant etc.
>>
>> When the error is displayed the K3 reverts to low power 12w out max.
>>
>> Resetting does not correct the fault, tried placing the KPA3 to bypass
>> and
>> all works fine. Changed the setting to PA nor and the fault returns
>> immediately.
>>
>> Support have been notified by e-mail bit thought I would ask the group if
>> anyone else has had this happen and if so, was it a KPA3 failure
>> requiring
>> replacement. Of course the warranty has expired...(:-((
>>
>> 73's
>> Gary
>> K3 #679
>> Sent via BlackBerry® from Telstra
>> ______________________________________________________________
>> 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
>>
>
> ______________________________________________________________
> 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
>