Sun 3/80 magic smoke

Tried to power up a Sun 3/80 mainboard...

Inductor L0500 (right near the power input) (I assume this is an
inductor by the L0500
marking on the PCB) smoked....  (pink smoke no less)

Anyone familiar with the 3/80 to give an idea of why this might have smoked.

Board appears in excellent condition, no foreign objects on the board,
no sign of any
shorts that I can see.

Would like to rescue this board.  If it was a PC I'd look for bulging
electrolytics...

Anyone got a schematic for the 3/80 ?  (I've never seen any Sun schematics).

-- Curt
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