[Elecraft] [KPA500] Rear power switch thread

[Jim Miller KG0KP]

Try unplugging from the wall your PC repeatedly without even shutting down 
your programs you have running and see how long it takes to cause problems.

73, de Jim KG0KP

----- Original Message ----- 
From: "Oliver Dröse" <droese at necg.de>
To: <elecraft at mailman.qth.net>
Sent: Wednesday, November 30, 2011 4:35 PM
Subject: Re: [Elecraft] [KPA500] Rear power switch thread


> Hi Ron,
>
> the arguments are told over and over again ("it is like a computer, etc.")
> for the K3 and KPA500. Still I do not see WHY it is possible with every
> other transceiver and PA on earth to simply shut down power (disconnecting
> from mains) without first switching it off and without any possible
> problems? They use the same "computer technique" inside ...
>
> Just curious. ;-))
>
> 73, Olli - DH8BQA
>
>
>
> ----- Original Message ----- 
> From: "Ron D'Eau Claire" <ron at cobi.biz>
> To: <elecraft at mailman.qth.net>
> Sent: Wednesday, November 30, 2011 4:42 PM
> Subject: Re: [Elecraft] [KPA500] Rear power switch thread
>
>
>> Just to be clear - the Elecraft equipment should be turned off using the
>> front panel switch *before* it is disconnected from the mains supply so
>> the
>> logic system can do a proper shut-down. You can get away with "pulling 
>> the
>> plug" much of the time, but sooner or later you'll catch the logic in the
>> process do doing something critical - writing data to memory, etc. - and
>> will end up with scrambled data. That can be corrected by reloading the
>> firmware, but it's a hassle easily avoided by powering down with the 
>> front
>> panel switch first.
>>
>> Ron AC7AC
>>
>>
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