I just got done removing a hack and re-pinning J115 correctly.
https://pinside.com/pinball/forum/topic/should-i-repair-this-or-leave-it-alone#post-5923054
And I went to test it before I messed with some other pins and connectors that I was going to repair.

My problem is that the Illum. string 1 is not working. It gets it's power from J115 and then sends that power to J121 to a White/Brown and Brown wire, if I understand that correctly. I check J121, and I got power going to the W/B wire. So I guess that should mean that I got a break in the wire going to the playfield somewhere.

Question now is, have I missed anything,and am I working in the right direction.

Yes I have power leaving J120/J121 at 6.8vAC, But I think that I found something on Pinwiki going from pin 8 of J115 to Q18 as shown on this chart. It's not toning out.
467px-GIBuzzBrown (resized).jpg

Yes, pin 8 was the problem. It did not have a path to Q18. I when ahead an pulled the pins connectors and found that the through hole was bad, so I stitched it. That diagram that I found on PinWiki pointed the way to the problem.