Need help. I don't know much about the machine, but it was working fine before I replaced some old lights on the playfield with a new LED kit I bought from Marco. Then all of sudden it stopped working. I replaced fuses, 7 on the back box and one on the bottom of the playfield. I did not see others to replace. The LED light appears to flash about 5x. When I turn on the machine I get about one note from the power up tune. I have now removed all the new LEDs I put in. Nothing happens when I press the self-test button. What could I have done?