ChrisBee,
Sorry it took so long to get back to this, I picked up a few more EM's and the Spanish Eyes was at least playing, so this got put on the end of the list.
I cleaned and adjusted these switches and the lights would sometimes work. I thought it was dirty contacts etc so I took a test lead and jumped the switch closed. I'm still getting the same behaviour.
If I power off the machine, power on, press left flipper to energize, then press start, I get working inserts and bumper lights for the first, and sometimes 2nd ball, Then nothing. If I start a new game, sometimes lights, sometimes not, but more often when I power off and back on and restart.
If I start a game, add some points and drain, I can see the inserts and bumpers flash for an instant before the next ball is delivered to the shooter lane. If I score no points then they don't flash.
The only schematic I can find is the one on IPDB.org but it's chopped up to about 15 pages and I can't seem to follow it.
It appears these switches feed someplace else, something is turning it off. I printed the schematics out and I'm going to tape them all together tonight and see what I can figure out.
Thanks for the reply, it did get me started in the right direction.