Quoted from KevInBuffalo:Thanks all. I'll be reading Clay's Guide and grabbing Pinball Machine Maintenance and (hopefully) the game manual/schematics from PB Resource.
This game has about 17,500 original plays on it. It seems low to me but I'm not 100% sure. What's a typical EM from that era have on it as far as plays on the counter?
That's extremely low. I'd expect a game of that age to be more in the 70,000 range.
It's certainly possible though, especially for a late-era EM like this. Many of these games were pretty much brand new when Digital Pin Mania was running roughshod over the industry. These games were quickly retired or moved to low-play locations as the new games came in and gobbled all the quarters. I've found most of these '77 EM games are in terrific shape.
As for your saucer problem - if the ball lands there and the game does nothing, it's probably just the switch. You need to adjust/clean the switch in the saucer so the game knows the ball is there. This is the most basic issue you'll have - remember these games don't use microswitches, they use leaf switches. So you won't hear a "click" to know it's working. You need to eyeball the switch from underneath the playfield and activate it manually (with a ball is the best way). Do this with the game off. Just eyeball and it adjust it so it's closing. And file it a few swipes with your flex file.
If the ball lands in the saucer, and you hear the score motor move but the ball doesn't kick out, it's probably a switch in the score motor or in a relay (something like saucer relay). But from what you are saying (shaking the machine) it's most likely just the obvious switch in the saucer.
You should hopefully already have a switch adjust tool, a soft flex file, and a hard metal file. If you don't, buy them yesterday - and get 5 of the flex files they age quickly and are cheap. Also if you are buying the manual make sure to get the schematics too. These are two separate documents.
Mechanically, you have to remember EM games aren't much different than modern games. The playfield stuff that is. It's the "logic" stuff that's all different - those relay boards in the cabinet and the head instead of computer boards. So think in the same terms - if something isn't working, first suspect the playfield switch, and look over stuff mechanically. Many of your SS pin skills will still be relevant here.
Another EM tip since you asked...keep in mind that these mechanical games aren't as "smart" as a modern digital game. If something is stuck on, it's gonna cook. If you ever notice something stuck "activated" - a pop bumper, a sling, a score reel, anything else - turn the game off and start to diagnose the problem. If you let things stick on for long they'll cook, which will mean a mess you have to clean up and numerous parts you'll have to replace.