I just picked up an absolutely gorgeous HUO or VERY lightly used LOTR. The only problem I'm noticing is that with a few hits of the flipper button, ball in the shooter lane, the ring mode starts. In switch test mode, the ring opto seems to work perfectly. However, there doesn't seem to be a way to test switches with coils activated?? I'm curious if it's a vibration thing or what (although the flippers are an entire playfield length away from this switch).
I ordered a few IR LEDs to replace the opto LED pair if necessary, but has anyone else ever heard of this and is this the solution?