[Elecraft] No smoke, but no power

[Paul Kelly]

Hello all.... I have been fortunate in my K2 building
experience. No
problems until "setting the AGC threshold", page 46.
In a grounded
test of pin 5 of U2 on the control board I was only
getting 1.2
volts, where 3.8 was called for. Looked at the front
of the rig and I
had lost all power. Checked my power supply and all
was OK.
Absolutely no powering up of the rig. Help??? Paul,
NN5G
#4383...hopefully