Help! Dead 3B1 just clicks and blinks.

[Bob Breum]

I came home the other day, and discovered my poor 3b1 going, "Click, click,
click..."  The caps lock and nums lock lights were flashing in unison, and that
was it.  No display, no disk activity (floppy or HD), just a steady clicking
and the smell of toasted insulation.

I took it apart, but there is nothing obvious to my untrained eye.  Obviously,
the powerline fuse integrated into the powercord receptacle is intact.  Any
help would be appreciated!