[Elecraft] Applied 12V to accessorie jack

[paul hendershott]

Hi Folks, 

I lent my K2100 out to a ham in Reading, PA a few years ago 

and apparently he misplaced the power connector and applied 12V directly to 

the 12 V power-out jack (Anderson Power Pole connector). He said the radio powered up fine, but when he went to 

tune up and transmit, the unit went dead. I got the radio back about a year and a half ago
and want to dive in and see what might have happened. Can anyone give me a place to start
or have an idea if I'm looking at just replacing a fuse or something more involved? 

Thanks! 

Paul