I have a LC575 power/analog board, I am messing with right now… there was a pair of 5500uf 10v Caps that looked to be slightly leaking the leads were turning green.

Not sure what the common problems are with these LC575 power boards. This one also does the same as yours, dead, will not power up.

I even RE-Capped the LC575 Logic board, It works now… tested it in the Color Classic.

Now I just have to figure out what is wrong with this power board.