[Elecraft] KAT100 Finished but not working

[Douglas Person]

I've had a KAT100 sitting under my workbench for several years. I sorta 
forgot about it. A couple of days ago I recognized the box, pulled it 
out and assembled it. I've built dozens of K-Kits. This is the third 
KAT100 I've built. I'm very careful. But... This one doesn't want to work.

There is no indication that it is active - LEDs don't light. I carefully 
examine every connection under a magnifying glass. Transistors, diodes 
and ICs are all correct. Every connection looks perfect. I traced power 
to every IC - everything is correct. I even carefully built a new 
control cable - just to be sure.

Can anyone suggest what further steps I can take to debug this tuner? 
Could there be something wrong with the K2? Any help appreciated.


Thanks -- Doug -- K0DXV