Something is triggering my game to switch the sound effects on the slings to this:

Also there are a few sounds that don't make sense. For instance you hear Graveyard when you hit the Geneva hole. You don't hear the frankenstein moan when you hit the right ramp. Doesn't anybody know why this is happening? I have poured over the manual and the adjustments menu and can't find anything. The game was playing perfectly with all the correct sounds earlier today.

Hi Lloyd. Yep I did lots of work. Lifting the playfield up and down all the while. Switch test showed all the switches are fine.

Now the game is functioning fine. All the sounds are as they should. Do you think there could be a bad connector at one of the boards or possibly a bad switch?

Thanks for the help Lloyd. The problem has not returned for three days so I guess I have it resolved. Fingers crossed