[Elecraft] KX1AT problem

[Paul Brice-Stevens]

Hi,

I have built a KX1 with the 30m option al installed and its working fine.

I then built the KX1 ATU and it appeared to go together OK and on the 
first install it worked and the KX1 recognized it and I started to play 
around with the various settings...then when I next switched it on it 
gives the '---' message and won't recognize the ATU.

I have checked as per the Troubleshooting guide: -



- Connectors seems OK
- U1 appears insttaled OK
- No idea how to check whether U1 is defective...

So any ideas what and how to check next?

73 Paul G0WAT
KX1  #1043