K3 RX broken :-( ... where to look at first?

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K3 RX broken :-( ... where to look at first?

Oliver Dröse
Hi,

just setting up for WWDX SSB and probably due to too much RF around
(HIGH RFI indication shortly on the display) my K3 main RX died. Seems
the 2nd RX is still operational, at least I can hear signals when
switching to AUX antenna which is wired from ATU to sub-RX if I remember
correctly.

Any hint?

Seem to remember there were similar cases in the past where a protection
diode died which was not on the main board but somewhere else?

Thanks,
Olli - DH8BQA

--

Contest, DX & radio projects: http://www.dh8bqa.de


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Re: K3 RX broken :-( ... where to look at first?

Oliver Dröse
Thanks to Dave's, K6LL, tip on the 3C0L thread, I could identify D25 on
the RF board to have gone south. Ordered spares already and thanks to
Heiko, DG1BHA who is lending his K3 so I can do the contest at least ...
73, Olli

Contest, DX & radio projects: http://www.dh8bqa.de


Am 27.10.2017 um 20:32 schrieb Oliver Dröse:

> Hi,
>
> just setting up for WWDX SSB and probably due to too much RF around
> (HIGH RFI indication shortly on the display) my K3 main RX died. Seems
> the 2nd RX is still operational, at least I can hear signals when
> switching to AUX antenna which is wired from ATU to sub-RX if I
> remember correctly.
>
> Any hint?
>
> Seem to remember there were similar cases in the past where a
> protection diode died which was not on the main board but somewhere else?
>
> Thanks,
> Olli - DH8BQA
>

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