[Elecraft] [KPA500] No power out in "OPER" mode

[Jack Brindle]

This is not a common problem. Reports are few and far between. But, if  
and when you do see a problem of this sort, please send a very  
detailed report so that we can try to figure out what is going on and  
correct it if we are able. It might be something in the amplifier,  
something in your environment or some combination. So when it happens,  
please let us know, along with all the details. We really do want all  
our products to be as perfect as possible.

Jack Brindle, W6FB
Elecraft Engineering



On Apr 17, 2012, at 5:37 AM, k2zf50 at aol.com wrote:

> Hi Larry,
>
>
> My KPA500 exhibits the same problem at times, don't know why. I turn  
> off the amp and then back on and then it will operate in "OPER"  
> mode. I guess it is a common problem.
> Jim  K2ZF
>
>
>
>
> -----Original Message-----
> From: K2GN <k2gn at k2gn.com>
> To: Elecraft <elecraft at mailman.qth.net>
> Sent: Mon, Apr 16, 2012 10:42 pm
> Subject: [Elecraft] [KPA500] No power out in "OPER" mode
>
>
> Today, I was on 15M CW in a pile-up calling, when I looked at the  
> meters I
> had no output.
>
> AMP was in "OPER". Put AMP in "STBY" and I had output, but at the  
> drive
> level, naturally.
>
> I did NOT see any faults or hear a beep. I check all Menu items and  
> found
> them right on the factory settings.
>
> I read a few reflector messages via Nabble that described the same  
> symptoms
> but there wasn't any solutions offered or follow up fixes.
>
> There was something about low voltage, so I checked my 2nd KPA500.   
> Running
> just fine. Switch power sources on the AMPs and the problem stayed  
> with the
> 1st AMP.
>
> I'm stumped but it doesn't take much to do that.
>
> I'll call Elecraft tomorrow but in the meantime, any suggestions?
>
> Larry/K2GN
>
>
>
>
>
>
>
>
>
>
>
> Larry/K2GN - http://k2gn.com <http://k2gn.com/>
>
>
>
>
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