[Elecraft] KPA 500 not turning on every time

[Jim Sheldon]

I've also had that happen here, but it appears to be related to the power up sequence.  If the KAT500 tuner is NOT the first thing powered up, the K3 will hang and the KPA500 sometimes may not turn on either.  My solution (until Wayne can address a programming glitch in the K3) is to have the KAT500 tuner come on automatically when the (common) power supply is turned on and then power up the rest of the station.  It doesn't seem to matter what sequence I use as long as the tuner comes on first.

Jim - W0EB

> Same for my KPA-500.
> I haven't studied the sequence of how I shut it and the K3 down but
> have always assumed that sequence is involved.
> This is not unlike the earlier issue of bringing the K3 and KPA500
> online "out of order" and seeing the amp fail to operate.
>
>
> On Jun 26, 2013, at 5:53 AM, Howard Sherer <hms4 at Lehigh.EDU> wrote:
>
>> I have had this problem since the my KPA was new 7 months ago.
>> Occasionally it would not turn on when the on button was pushed,
>> you had to cycle the rear power switch and then the on button
>> would turn on the KPA. This problem has gotten much worse and now
>> occurs about 50% of the time.
>>
>> Is this a known issue and is there a fix?
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:
>> http://mailman.qth.net/mmfaq.htm Post:
>> mailto:Elecraft at mailman.qth.net
>>
>> 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:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html