[Elecraft] KIO2 - sidetone blues

[Eric Manning]

I had the Rev A control board so I had to hack it. Now I'm damned if I can 
get the !@#%  sidetone to work.
I have firmware rev 2.01,
I changed the menu item to U8 pin 4,
I can hear the KIO2 oscillator on 16.9 MHz,
I have inspected the hack umpty times -- it all looks fine to me, no shorts 
or bridges visible.
Heck, it's only one cut trace, one cap & 2 new wires, and only one wire has 
to be right to get the sidetone I believe [Q5 gate to U8 pin 4].

And everything worked PERFECTLY before I started on this little exercise =(

Any hints or thoughts??

The trace to be cut is a green band about 1 mm wide with black borders on 
both sides, right? I checked for continuity from Q5 gate to U6 pin 25 and 
there isn't any, so I think I did that right.



eric VA7DZ
elecraft K2 #2561