First off this game had sat a long time and under pf had a rough life. Game has all new boards. bringing this back to life for a friend. I like solving probs but this one stumps me. hoping its something obvious. In test mode I noticed every time I triggered a coil switch all of the LED flashers in the backbox fired. Very weird. slings, pops up kickers all cause flashers to go off..\

Looked over manual in solenoid section 3-9 and connectors all seem correct. Any ideas?

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Thx Chris. Good idea. I'll check tomorrow and report back

Actually. I already did this . In coil test the flashers come on when I test each coil so if I activate left sling 5 times the flashers will go on each time

Thx for all the great ideas. I do have my own wh20 i can use as a guide so anything I can cross check let me know

We have a winner. Put regular flashers in and problem goes away. Zaza wins it. So on the flasher kit I wonder how to resolve this

Chris I would have never guessed this. I made sure I mentioned LEDs in original post. You never know what little detail is important

I think my message sounded wrong . I meant that in a million years I would never have suspected LEDs. But I know any extra details help. If I had said flashers without mentioning LEDs it would never have been solved .
You've helped me several times in the past. I leaned something too

This gsme has all new boards

For some reason 5 or 6 led flashers in bb go off whenever a coil fires