Let's start with the game title....Although from the year, I can pretty much tell what's going on. But just to be sure, title....

I just walked another member through a complete electrical flipper overhaul on his Bally X's and O's, so we can get it fixed. Only took 280 posts

One of my flipper stopped working once and it was because the end of stroke switch was not closed. this may be a place to start too.

Oh, and it's almost never the coil

robertmee is the man, he will be able to steer you in a better direction for sure.

Here's a simple diagram of how your setup works:

Coil2.jpg

So, things to check:

As you can see the EOS Normally Open switch of the bottom coil switches ground to the upper coil to fire the circuit. So if the upper flipper is not working, then one of the following is happening:

GND is missing on EOS switch on lower flipper (visually inspect)
Wire from EOS switch on lower flipper to upper flipper is not connected (visually inspect)
Switch on lower flipper is not closing (move lower flipper by hand with playfield raised and make sure switch is closing)
Power to upper flipper coil is missing (visually inspect)
One or both diodes have broken on upper coil (visually inspect)
The small copper wire on the upper flipper coil has broken (visually inspect...from the picture, one lug should have a thick copper wire, one lug a thin copper wire and the middle lug both thin/thick wire)

Check all these first

Welcome aboard,stay for awhile.

That looks okay...The voltage wire (far left) is in tact. The wire from the lower flipper (far right) is in tact. The two diodes appear to be in tact. I can't tell, as it's on the other side, but where those wires are soldered, you'll see the small copper wires that actually go to the coil under the wrap. Make sure those are in tact. Especially the lone thicker one as that's what initially fires the coil before the low power coil (thin wire) comes into play.

If you want to quickly test the coil, get you a length of scrap wire. With the game turned on and ready for play (such that the lower flipper is working), touch one end of the wire to a convenient ground and BRIEFLY touch the other end to the wire on your right in your picture. The Coil should fire.

No the far right wire on the coil (looking at your pic)....appears grayish and is by itself

Zooming in on the photo it looks like the EOS switch could have some corrosion on the contacts. Maybe just a quick filing will help.

Do you have a meter? If so, put it on VDC. Put one lead on the wire on the left and the other lead on ground somewhere. What do you read?

EOS only comes into play on flipper stroke. If it wasn't making contact (not bypassing the low power coil), the coil would still fire, only be weak.

Just so we're clear on the gnd test and voltage test:

bally_coil.jpg

If you definitely had a good ground point and touched the wire in the picture (WHILE THE GAME WAS IN PLAY) above and nothing happened then you have no voltage at the coil on the left wire.

That means:

The copper wire on that lug is broke inside the coil (not likely)
The copper wire is not attached to that lug (sometimes breaks due to vibration)
The wire that's soldered has no voltage (most likely). That wire gets its ~43VDC from a previous coil. Referring back to my diagram, you'll see how the 43V jumps from coil to coil. I would guess that the other end of that wire is on the left hand lug of the bottom flipper coil on that side, but it all depends on how it was wired from Bally. Again, inspect the lower coil. It's left hand lug (the one with the EOS switches on it...could be right hand depending on the how the coil is physically oriented) should have TWO power wires (one coming in and one going out).

Snap a picture of the lower coil too when you get a chance.

If it is the one I have circled, that's the ground that feeds through the EOS to the upper switch. So, reattach it, and you should be good. You must not have had a good ground in your earlier test, but no matter.

bally_coil_lower.jpg

Robert you already hold the record for the longest fix thread,Are you going for another?

Man, you guys are good.

Kick.
Ass.

Robertmee, you are the perfect example of what makes this site so awesome

agreed!!!! Thanks for all your input and knowledge!! sincerely

Ha, no....I think we just set the record for shortest fix thread

Congrats on getting it working

Now this was shorter...
Mine was more interesting... Melted coil, wrong-soldered no-name other coil, what is not similar then the original... Makes blown fuse, and broken panel wiring...

Congratulations for the fast help!