[Elecraft] K2/100 - Hi Curr and loss of power control - help! de VK7JB

[Gary Gregory]

John,

Do a full reset of the K3....in the manual, follow the steps and let me know
how it goes.

Gary

On 17 June 2011 15:59, VK7JB <zendoc at netspace.net.au> wrote:

> Hi Group,
>
> Using my K2/100 #6998 on 20m SSB phone today, running it into an
> experimental small loop antenna.  SWR was 1.5:1.   Then:
>
> Hi Curr warning on LCD - shows continuously in TX.
> Maximum power out (>100W) independent of power control setting
> LED Bargraph stopped displaying RF output (ie no bars lit) despite > 100W
> output measured on external power meter.
>
> Disconnected antenna and attached dummy load - same symptoms.
>
> Could I have somehow fried D16 & D17 in the KPA100?  I checked these diodes
> in-circuit with my multimeter "diode test" function and there is no voltage
> drop across either.  Does this mean they've both failed open?
>
> Is there anything else I should check/look for/measure before I dismantle
> the KPA100 and replace D16 and 17?
>
> Any advice appreciated as always,
>
> 73,
> John
> VK7JB
>
>
>
>
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