Working on a Gottlieb Royal Flush that was playing fine, but now (almost) no coils will activate. Which relays should I be looking at? I have visually inspected everything I can think of and manually activating relays by hand has not yet got me anywhere. The game will fire the coil to put a ball into the shooter lane for play every time it drains but Flipper coils inop. as well as all scoring targets, pops etc...

The Q = game over relay and U = 1st. ball relay become energized and don't want to let go as soon as you flip the power switch on?