Hi Everyone!! My Sega L/W pin is acting up. It says it is missing 1,2 or 3 balls and then shoots them onto the playfield. If you let them drain it shoots 2 into the shooter lane. If I run a switch test it shows the 3 ball trough switches but no optics.If I unhook the diode off of #3 ball trough switch it shows the optics working?? It acts like a bad diode but I sure cant seem to find it. Any body else seen this?? Thanks