I have to wonder if you haven't run into the problem I had with my K3S
about four weeks ago. Same symptoms. The cause was a shorted filter
cap for the LCD bias on the display board. Details are in the mailing
list archives.
73 de AI6KG
On Wed, Aug 16, 2017 at 4:07 PM, Dauer, Edward
Ted,
A blank display is quite unusual. Does "Elecraft" display when the K2
is powered on?
First check the DC voltage at the anodes of D6 and D7. In receive D6
should be near 8 volts while D7 anode should be near zero volts.
If there is voltage at the anode of D7, the K2 is going into
The display on my K2 (S/N 7637) just quit. The backlight is on, but not a
single digit component appears.
The rig has been working FB for over a year. Used it today as the alignment
receiver for another K2 being built. All was fine when that process started,
both rigs worked as they should,
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