[Elecraft] KPA500 fault at H44KW (no pwr high SWR)

droese at necg.de droese at necg.de
Wed Feb 20 16:26:13 EST 2013


 
Hi Neil,
 
let them check if the connection wires between PA board and output connector are still in place! I had that failure once, too. The plugin-connection is not as strong as it could be ...
 
73, Olli - DH8BQA
 
 

> Neil G0JHC <g0jhc at blueyonder.co.uk> hat am 20. Februar 2013 um 16:05 geschrieben:
>
>
> I wonder if anyone on this reflector could offer advice to the current
> H44KW DXpedition. They have 2 new KPA500's with them. One has gone down
> the first day. The fault is "The linear is not putting any power out what so
> ever. The SWR is very high when you switch the amp from Standby to Operate.
> Everything else is working such as the LEDs etc."
>
>
>
> I am calling them back in a few hours with (hopefully) a few things to
> check.
>
>
>
> Their tool list is, a screw driver to open it up and a test meter.
>
>
>
> Where do they want to start in the simple fault diagnostic process please.
> They would only want to spend an hour or two to determine if it is fixable
> there or needs to be packed for a fix once home. I.e. they can trace a
> signal path/dry joint, and compare with the 2nd unit, but haven't access to
> replacement parts.
>
>
>
> Thanks for any help next 24 hrs.
>
>
>
> Neil G0JHC
>
>
>
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