Hello Pinside group!
First, thank you for reading and offering any advice on the below. I am finally getting around to working on my pins. I recently messed something up on my Twilight Zone. I was putting brighter LEDs under the slingshots. I did insert the lights when the game was on... I know, I know... bad move. I should of had the machine off. I can't think if I messed with anything else, but after that, pop bumpers, slings and outlanes aren't working. They fire when i go through and test the coils. I was hoping in was just a fuse. When i look at the chart of the switches, everything in column 3 (Green-Orange wire) isn't working. I've traced that wire, and didn't see any visual issues. Is there something i'm overlooking? Can someone point me in the right direction with my voltmeter? I greatly appreciate any help.

Up next, a question regarding my WIZARD! When the ball drains, it counts the bonus up, and down... so it goes indefinitely. Great for a high score, but i prefer to play Ball 2.

I'm attaching the chart of Switches for TZ.

Thank you!
Eric

Screen Shot 2019-09-30 at 11.03.37 AM (resized).png

Thank you, @robertmee

This makes sense. I will dive into this soon and report back!

thanks, again.

robertmee I was finally able to check the machine as you suggested. When I connected another J206 plug into the 3 pin, the switches do register in switch test mode.

Does this mean part of U20 is fried? Everything else on J206 works like it should.

Should I try a continuity test from that board? Not 100% sure I know how to do that, but I can research.

Thanks!