Let me start out by saying that I'm a Williams guy and have had lots of the WPC and System 9/11 games and enjoy playing and fixing. When asked by a friend of mine if we could get the Haunted House that's been stored in the garage all cleaned up and working I foolishly said yes - After all, how hard can it be? That's now been months ago and I'm about to throw in the towel. Let's start with the good news: The pin boots up and all score displays work. Before I started replacing bulbs, cleaning, and putting on new rubber everything worked but the drop target reset on the upper playfield and the VUK to the playfield. Fast forward to now and it seems like everytime I turn it on it has different problem. Here's a list of whats working and whats not working.
Working - All Switches!!, 4 Main Flippers, Trough Kicker to Plunger, Cellar Kickout, The kickbacks at 1,2 and 5 on main playfield, Main playfield Pop Bumpers, slings, All game sounds, Basement kickout, Displays, and the fuses are good
Not Working - Both Drop Target Resets on Upper and Basement, VUK from Main to Upper Playfield, Upper Playfield Pop Bumpers, Both Upper and Lower Flippers, VUK from Basement to Main, and Kickout for the extra ball on Main (Again these all worked prior except the Upper Drop Target Reset) - The VUK to Upper Playfield didn't, then it decided to work, and now it's decided to stop working)
In a nutshell - Everything works on the main playfield except the VUK to the Upper and Extra Ball Kickback. Nothing works on the upper playfield except lights and switches, nothing works in the basement except lights, switches, and the kickback at Special
At 1 point when starting a game the Drop Target reset on the basement would fire continually instead of the trough kicker. I've cleaned all the edge connectors to the boards, all the pins appear to be in good shape. It's had some CPU work done prior and the work looks clean. I don't have a complete manual for it and I can't find a good troubleshooting guide. Everything I read discusses switch problems, bad displays, and game resets. I don't have any if these issues.
I know I'm ranting here, but if anyone has a Gottlieb System 80 For Dummies book, I sure could use it.
Thanks in advance for any help.