Quoted from Scrimmbo:How can I do a lick test with the power off?!?
just kidding, you are correct, and in most cases I do, but it never occurred to me that an led kit could damage a game.
LED kit will not damage a game per say, but unscrewing a GI bulb socket and shorting it to something metal on the playfield most definitely will damage something. When changing wedges to led, I always have the game on. But with the GI unscrewing from the bottom of the playfield, should be done with the game off. I too have learned the hard way...