Ed,

Remove all coax and other cables except power from the K3, then connect a dummy load. If the HI SIG message is still present, it is likely there is an internal K3 problem. If the message goes away, start connecting things one at a time to determine which is causing the problem.

73,
Don W3FPR

On 3/5/2016 1:27 PM, KD7PY wrote:
Just tried to do the ( PARAMETER INITALIZATION ) per the manul...

when powering on a holding shift-lo knob in I get  EE INT,  norm,   hi sig
one message,  one after another..

still locked up.   looks like I might have to send it to the boys at
Elecraft.  hope I can do the repair myself
if not to involved.

Ed   KD7PY



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