Re: K3: KIO3 digital board failed (I think)

[Edward R Cole]

Working with Rob at Elecraft Service, I removed and checked the KIO3
Digital I/F board and found L1 blown.  L2, L3, R12, and R13 are all
good.  L1 is on the ground lead from the sub-D9 connector, pin 5 to
ground in the K3.  Definitely blown as there is a carbon smudge next
to L1.  I installed a wire jumper but still inoperational.

Going to return the entire KIO3 unit to Elecraft for repair.

73, Ed - KL7UW
   http://www.kl7uw.com
Dubus-NA Business mail:
   [hidden email]

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[Nr4c]

Had the same thing a few years ago.  I plugged the PP into the K3 only it was offset a bit. Nanacged to get the cable Red on the K3 Black. Smelled smoke (P3 cable insulation) and blew L1 on the RS232 circuit.

Sent from my iPhone
...nr4c. bill

> On Sep 18, 2020, at 8:31 PM, Edward R Cole <[hidden email]> wrote:
>
> Working with Rob at Elecraft Service, I removed and checked the KIO3 Digital I/F board and found L1 blown.  L2, L3, R12, and R13 are all good.  L1 is on the ground lead from the sub-D9 connector, pin 5 to ground in the K3.  Definitely blown as there is a carbon smudge next to L1.  I installed a wire jumper but still inoperational.
>
> Going to return the entire KIO3 unit to Elecraft for repair.
>
> 73, Ed - KL7UW
>  http://www.kl7uw.com
> Dubus-NA Business mail:
>  [hidden email]
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

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