[Elecraft] K2 strange problem

[K8bvj at aol.com]

Anyone have this experience.  I went to turn on the rig to make a few QSOs. 
It came on as usual but only stayed on for 5 sec. then cut off.  I let it sit 
for a min and turned it back on and samething. I thought perhaps my astron 
supply was at fault but voltages are perfect ..I switched over to my battery 
backup power supply and same thing.  I get no faults on the K2 screen at all.

Tnx....Jack  W8BVJ