[Elecraft] K3 S/N 7394 Weird Symptom

[Brian F. Wruble]

Thank you!  I now remember reading that, but nowhere do they say, in big
bold red print "DON'T FREAK OUT!!!"

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







On Sat, Jul 6, 2013 at 10:39 AM, George Fenwick <gafenwick at att.net> wrote:

> Brian,
>
> That is normal behavior.  As stated in the manual, the KAT500 MUST be
> powered before truning on the K3.  If it loses power, that is the same as
> powering the K3 prior to the Kat500!
>
> George
> W2AIV
>
> K3/KPA500/KAT500
>
>
> ----- Original Message ----- From: "Brian F. Wruble" <bwruble at gmail.com>
> To: "Elecraft Reflector" <elecraft at mailman.qth.net>
> Sent: Saturday, July 06, 2013 10:32 AM
> Subject: [Elecraft] K3 S/N 7394 Weird Symptom
>
>
>  Hi all:
>>
>> My K3 has been working flawlessly.  It is part of a K3/KPA500/KAT500
>> lineup.  I was monitoring FSK441 on 6M for several hours, no problems.
>>
>> I turned it off for breakfast, came back and turned it on. The front panel
>> LCD fully lit, but with no characters on it, just blank.  All front panel
>> buttons were unresponsive.  I couldn't even turn it off without cutting
>> 12V
>> and re-connecting.
>>
>> I tried connecting to the configuration utility, but it wouldn't connect.
>>
>> Then I discovered the 12V supply had disconnected from the KAT500.  I
>> reconnected that, and the K3 came back to life.
>>
>> I am completely mystified.  This is repeatable.  If I disconnect power to
>> the KAT500, the K3 loses front panel responsiveness, and just stays in
>> whatever state it was in when power was lost.
>>
>> The KAT500 connects to the K3 using the special 15pin KPAK3AUX cable. When
>> I disconnect that, the problem goes away.  Reconnect it, and the problem
>> recurs --- K3 frozen in whatever state it was in when the 12V power to the
>> KAT500 was disconnected.
>>
>> Anybody know what is going on here?
>>
>> Tnx 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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>
>