I think it is a setting. When I got my Gn'R, the plunger wasn't working, and I was able to launch the ball with the flipper until I got it fixed.

I thought it was when you hit both flippers at once that it launches the ball. Plus I think you can turn that option on or off in settings.

Mike

The right/left eos switches are in the same column as the launch button so it could be a switch matrix problem. Go into switch test and see if more than one switch indicates closed when either eos switch is closed.

Any work done on the game prior to the problem arising?

read the title and immediately thought switch matrix. that's where i'd start

Since you're passing on the info. If more than one switch shows closed when the eos switches are closed then remove all the balls from the game and repeat the test. If that works then add the balls back one at a time, doing a test after each ball.

I agree switch matrix all the way.... check the switch test and any others that show up as bad check all the switches in the row or column they belong too. Could have a short or bad diode... Sometimes games are spooky. As terryb and I found out ... lol