[Elecraft] K3 Display Won't Shut Off

[Jack Brindle]

VGA cables are incompatible with the KPA500 and KPA1500. You will need a straight-through cable. BUT, you also need some pins removed. The power pin of the K3 is not compatible with the power pin of the KPA500 or KPA1500, and will result in the problems you have seen.
The cable is described in the KPA500 manual, rev E1 on page 45. I’m not sure where it is in the KPA1500 manual, but I would be surprised if we didn’t include the same table there.

73,
Jack, W6FB
Elecraft Engineering

> On Sep 17, 2021, at 7:47 AM, Jim McCook <w6ya at cox.net> wrote:
> 
> Now I see what's going on.  Originally I used the Elecraft cable between the K3 ACC and the KPA1500 and everything was OK.  The K3 could be powered down normally.  When I moved that K3 to a spare position, that cable wasn't long enough, so I ordered an extension VGA cable.  This is when the problem occurred.  Apparently the extension is the problem withh pin 8. Will see what Elecraft Support says.  73, Jim W6YA
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to jackbrindle at me.com