[Elecraft] K3 turns it self on, won't turn off

[Jeff Kinzli N6GQ]

Hi Joe, yes, I actually do have that mod installed (it was done by
Elecraft last time the radio was back to meet it's maker).

Thanks,

-J

On Wed, Mar 9, 2011 at 17:08, Joe Subich, W4TV <lists at subich.com> wrote:
>
>> Perhaps the board that the ACC connector is attached to needs to be
>> reseated? Any other ideas?
>
> Check the 12V sense mod:
>  http://www.elecraft.com/K3/mods/KPA3_12V_Sense_Modification_Rev_B.pdf
>
> Symptoms sound exactly like what you describe and I suspect your s/n
> is well before the modification was added to routine production.
>
> 73,
>
>   ... Joe, W4TV
>
>
> On 3/9/2011 7:58 PM, Jeff Kinzli N6GQ wrote:
>>
>> Hi Don, yes, I have checked this - there is nothing connected to the
>> ACC connector or the RS232 port when this occurs.
>>
>> Perhaps the board that the ACC connector is attached to needs to be
>> reseated? Any other ideas?
>>
>> Thanks,
>>
>> Jeff
>>
>> On Wed, Mar 9, 2011 at 16:51, Don Wilhelm<w3fpr at embarqmail.com>  wrote:
>>>
>>>  Jeff,
>>>
>>> It sounds like the Remote Power ON signal (on the ACC connector) is
>>> becoming
>>> active for some reason or another.  If anything external to the K3 or
>>> internal is pulling ACC pin 8 to ground, the behavior will be as you
>>> describe.  If you have a cable plugged into the ACC connector it should
>>> be
>>> checked for that condition.
>>>
>>> 73,
>>> Don W3FPR
>>>
>>> On 3/9/2011 6:47 PM, Jeff Kinzli N6GQ wrote:
>>>>
>>>> Hi there, I have a K3 (s/n in the 400's with most upgrades done)
>>>> intermittantly turns it self on, and sometimes won't shut down (via
>>>> the front panel power switch).
>>>>
>>>> I believe my PS is in good order, and nothing but antenna, PS and
>>>> paddle are connected to the back. It doesn't appear to be related to
>>>> anything external, and it's not dependable, just intermittant. It
>>>> started doing this a few months ago, then went away, and now started
>>>> up again.
>>>>
>>>> Maybe one of the boards needs to be reseated? Anyone else seen issues
>>>> like this? For now, I'm just powering off the PS when the radio is not
>>>> in use, and when it won't shut off, I have to turn the PS off to shut
>>>> the radio off. If I turn the PS back on at that point, the radio comes
>>>> back on.
>>>>
>>>> I have not yet tried another PS or battery to see if that's the
>>>> culprit but that will be my next step if this isn't a common problem.
>>>>
>>>> Thanks,
>>>>
>>>> Jeff N6GQ
>>>>
>>>
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