First, I want to list everything I know about this issue. The AAB is set on 30,000, 80,000 and 120,000. The Wow feature works perfectly from the rules standpoint on the playfield but not on scoring points. I know the entire process happens in the backbox. All the score reels have been completely disassembled, cleaned and points adjusted. The ten thousand unit has had a different circuit board installed from PR because the old one was bad. The light is working correctly when the score goes to 100,000 so the open close switch is working fine on the J relay. I have tested the continuity from the ten thousands circuit board to the high score female jones plug and all looks good. I have also checked the continuity to the ball count unit and all appears fine. The Blue/Orange wire tests fine to the ground on the circuit board. The ball count unit has a new coil and works great on start up. Just not sure what I am missing here! Already have 20 or so hours in pulling out my hair, which I have very little to start with. Any ideas would be greatly appreciated including where I could jumper from and to in hopes of isolating this issue. Oh, had a local pinball guy spend 6 hours trying to fix this also, no charge.

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Yes, it is in the correct position and checked that it is making contact correctly

Will try that to verify, thanks.

Lightbox unit. Thanks

Thanks will do that

Thank you so much, this looks great. It will be tomorrow morning before I can get back it but will let you know the results

Ok that was a great help, here are the results. The A to D, B to D and C to D jumpers all resulted in what you quoted. I restarted the machine and now the 80,000 and 120,000 AAB work but the 30,000 does not. I did reconnect the wires and soldered the connectors for the point scores just to be sure. I did notice the J rely coil was getting warm when nothing else was and there was a small vibration. Could the points where the green-black wire connect be broken inside the stack? I do have some new points from PR I could install. Not sure where to go from here. Any suggestions would be great. Thanks again for you help.

Thanks, the tape is just to hold the Thousands paper tag on. I did resolder the #1 to be sure. The set is now correct.

EM techs, thank you so much for walking me through this issue. With all of the suggestions it now works, except on 30,000 so I moved the pin to 40,000, all is good. I did resolder the numbers on the card so there must be an issue with the 30,000 connection but I won't worry about that. Problem solved. Have a great week.