[Elecraft] K3s most basic problem this morning

[Roy Koeppe]

Power will not turn on! Nothing. Measured correct voltage at end of power 
cable. Switched to a different power supply -- same. Manual mentions very 
little about this? The circuit breaker under antenna 3, marked '20' on back 
of rig is not in popped-out condition. Rig is under warranty, so I don't 
want to tear into it very deeply. Can someone please embarrass me with an 
easy answer or clue?

Thanks, 73,

Roy           K6XK     Iowa