[Elecraft] Please help-K2 Suddenly Dead

[Tom Mc]

Hi gang and thanks for any help you may be able to provide,

  My K2 was working fine (I have the Internal Battery, ATU, Noise =
Blanker, KI02 and 2.? firmware installed) and then yesterday I noticed =
some erratic readings on the display from the internal voltmeter.  On =
transmit it was jumping around from about 8 volts to 20 or 25 volts =
(well that was the reading).  I thought perhaps I needed to charge the =
battery, so I did.  After a while the same readings were showing.  I =
then disconnected the battery and worked only from the external Power =
Supply.  Still the same erratic readings.  So I started taking voltage =
readings at various points inside the rig with my DMM. =20

Then, without fanfare, the rig went dead.  I thought I tripped the fuse, =
but that wasn't the case. =20

I am getting the PS voltage through the RF board to the Plug to the =
Control board (Pin 1 of the plug is reading full PS voltage).  I am also =
getting the appropriate voltages into and out of the 8 and 5 volt =
voltage regulators.  But the display is not lighting up and the relays =
aren't switching when I turn the rig on.

That's as far as I went as I didn't know where to check next.

So if anyoneone can tell me were to trace the voltages next, or has any =
other ideas, I wold be very appreciated.

I've had the K2 built for about 18 months now and this happened, out of =
the blue.

Well thanks for your help

Tom
WB2QDG
K2 s/n 1103

PS Can we postpone FD until I fix this???


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