Today we started working on a Big Game trying to quickly get it ready to take to the Allentown Show. I set it up - hooked harnesses back up to what looked like a nice set of boards already in the machine and she came to life with very little effort. Than the fun started - I tried playing a game and the flipper fuse blew. After a little looking around I discovered one coil was toast so I replaced coil & sleeve. Now fuse is OK but one flipper still does not work.

This machine has two flippers on each side and the upper flipper works but not the lower flipper on the right side. According to schematic all wires appear to be in correct location and since the one flipper on that side works harness & driver board should be OK. I tried a second replacement coil just in case I grabbed a bad coil and still nothing. I tried jumping one wire at a time from the working flipper to the non working flipper and still nothing. I know it is going to be something "stupid" but I just can't get this fixed quick and I have a dozen machines to check before Allentown so I don't want to waste any more time on it.

Any ideas? THANKS!

We tried that and I tried jumper wire on everything I could think of. I am an "old school guy" so my son gets upset when I start with the "jumper wire" approach but even using the jumper wire I just could not get any action out of that second flipper. I might try the coil from the working flipper in the non working one "just in case" but I rarely have ever hit a bad coil that looks good let alone two of them in a row.

It "SHOULD" be a simple fix but it just isn't looking that way right now. We walked away from it after about an hour today - hopefully by tomorrow one of us (or someone here) will have an idea we had not thought about today.

THANKS! Keep the ideas coming!

Believe it on not we had 3 "bad" used coils in a row. Talk about something that will drive you crazy - grab a part that looks OK and assume it is good then have it mess with you not once but three times. I have had that experience in the past with a bad batch of new parts but all 3 coils I used were from different lots of stuff, different companies, etc. What are the odds?

Anyway - all fixed & playing great now for anyone who wondered about the outcome or who looks to this post for advice in the future.

Actually 3 different bad coils that all tested OK before we installed them with OHM meter test