[UK-CONTEST] K3 IO1 Error Message

[Chris G3SJJ]

I just posted this on the Elecraft Reflector but thought I would copy it 
here also. At G6MC/P we lost a lot of time changes radios twice, firstly 
to a wide open FT1kMP and then to another K3 without sub rx so no SR2O.

"When I switched on my K3 on Saturday afternoon prior to using it in 
Field Day it came up with IO1 error message. I will contact technical 
support but wondered if anyone had experienced this before. Associated 
symptoms are: Doesn't recognise Sub Rx, ATU or 100w PA, ie max output is 
12w. It was working perfectly in the week and I am thinking a connector 
may have worked lose in transit. Accessing the Field Day site involved a 
drive along bumpy farm tracks and a steep grassy incline which my 4x4 
SUV coped with OK but apparently not the K3!!"

Chris G3SJJ