[Elecraft] [K2] KSB2 Module Question

[Brian Handy]

Dear Readers,

I am right now working on the KSB2 module.  It's built, been installed into my K2, and I was able to hear a few stations with it.  This gave me a false sense it was working, which is not actually true.

I now find that when I put the K2 into TUNE with this gizmo installed, I don't make power:  set 5W on the dial, and get 0.1 indicated when I hit the TUNE button.  I started going back through the DC measurements in RX mode and have turned up the following:

U2-5:  6V (should be 0.6)
U4-3:  6V (should be 0.6)

These are the ALC THR voltage, seemingly coming out of U2.  I looked up the specs for U2 and I'm not quite sure what to do with this information.

What does this potentially mean?


Cheers

Brian Handy AE7JW